Commit Graph

584 Commits

Author SHA1 Message Date
Chandler Carruth
49a7633378 [PM] Move TargetLibraryInfo into the Analysis library.
While the term "Target" is in the name, it doesn't really have to do
with the LLVM Target library -- this isn't an abstraction which LLVM
targets generally need to implement or extend. It has much more to do
with modeling the various runtime libraries on different OSes and with
different runtime environments. The "target" in this sense is the more
general sense of a target of cross compilation.

This is in preparation for porting this analysis to the new pass
manager.

No functionality changed, and updates inbound for Clang and Polly.

llvm-svn: 226078
2015-01-15 02:16:27 +00:00
Craig Topper
ed74db3e2d Remove an unnecessary reference variable that pointed to a unique_ptr variable. Just use the unique_ptr variable directly.
llvm-svn: 224104
2014-12-12 07:52:06 +00:00
Craig Topper
3ed1d5e301 Use unique_ptr operator= instead of constructor to make it explicit that there's no conversion occurring.
llvm-svn: 224103
2014-12-12 07:52:00 +00:00
Craig Topper
e241661f0e Just use the Module unique_ptr object directly in many places instead of separate pointer that's kept in sync with it.
llvm-svn: 224004
2014-12-11 07:04:52 +00:00
Craig Topper
bf59c48bcd Use unique_ptr to remove an explicit delete. Change return type to pass the unique_ptr to caller.
llvm-svn: 224003
2014-12-11 07:04:46 +00:00
Rafael Espindola
4753b87f60 Add doInitialization/doFinalization to DataLayoutPass.
With this a DataLayoutPass can be reused for multiple modules.

Once we have doInitialization/doFinalization, it doesn't seem necessary to pass
a Module to the constructor.

Overall this change seems in line with the idea of making DataLayout a required
part of Module. With it the only way of having a DataLayout used is to add it
to the Module.

llvm-svn: 217548
2014-09-10 21:27:43 +00:00
Craig Topper
6561337f81 Use StringRef to avoid copies and simplify code.
llvm-svn: 216822
2014-08-30 16:48:22 +00:00
Rafael Espindola
5d3991396a Return a std::unique_ptr from the IRReader.h functions. NFC.
llvm-svn: 216466
2014-08-26 17:29:46 +00:00
Rafael Espindola
1d5713d9bf Modernize raw_fd_ostream's constructor a bit.
Take a StringRef instead of a "const char *".
Take a "std::error_code &" instead of a "std::string &" for error.

A create static method would be even better, but this patch is already a bit too
big.

llvm-svn: 216393
2014-08-25 18:16:47 +00:00
Eric Christopher
99307e99a2 Remove the TargetMachine forwards for TargetSubtargetInfo based
information and update all callers. No functional change.

llvm-svn: 214781
2014-08-04 21:25:23 +00:00
Eric Christopher
5039e6ecfc Move MCOptions that aren't shared between programs into their specific
program and have them initialize the MCOptions struct explicitly.

llvm-svn: 209321
2014-05-21 21:05:09 +00:00
Eric Christopher
ab736331f1 Make a couple of command lines static and remove an unnecessary
initialization.

llvm-svn: 209320
2014-05-21 21:05:05 +00:00
Eric Christopher
04464d5263 Move the verbose asm option to be part of the options struct and
set appropriately.

llvm-svn: 209258
2014-05-20 23:59:50 +00:00
Eric Christopher
ac8b0b7c03 Unify command line handling of MCTargetOptions and remove extra
options and code. No functional change.

llvm-svn: 208833
2014-05-15 01:10:50 +00:00
Eric Christopher
4b361468c0 Have the SubtargetFeature help routine just not return a number and
fall back to the normal path without a cpu. While doing this fix
llc to just exit when we don't have a module to process instead of
asserting.

llvm-svn: 208102
2014-05-06 16:29:50 +00:00
Rafael Espindola
76906d2b9e Remove the -disable-cfi option.
This also add a release note about it. If this stays I will cleanup MC
next week.

llvm-svn: 207977
2014-05-05 17:33:26 +00:00
Benjamin Kramer
4f8fb8ff6c raw_ostream: Forward declare OpenFlags and include FileSystem.h only where necessary.
llvm-svn: 207593
2014-04-29 23:26:49 +00:00
Craig Topper
0e2ab5732c [C++] Use 'nullptr'. Tools edition.
llvm-svn: 207176
2014-04-25 04:24:47 +00:00
Jim Grosbach
2dc502a558 llc: Add support for -mcpu=native.
When -mcpu=native is passed, autodetect the host CPU and pass that
as the CPU name to the TargetMachine factory method.

llvm-svn: 206095
2014-04-12 01:34:31 +00:00
Ahmed Charles
52ce0c101e Replace OwningPtr<T> with std::unique_ptr<T>.
This compiles with no changes to clang/lld/lldb with MSVC and includes
overloads to various functions which are used by those projects and llvm
which have OwningPtr's as parameters. This should allow out of tree
projects some time to move. There are also no changes to libs/Target,
which should help out of tree targets have time to move, if necessary.

llvm-svn: 203083
2014-03-06 05:51:42 +00:00
Rafael Espindola
1b07b35205 Use DataLayout from the module when easily available.
Eventually DataLayoutPass should go away, but for now that is the only easy
way to get a DataLayout in some APIs. This patch only changes the ones that
have easy access to a Module.

One interesting issue with sometimes using DataLayoutPass and sometimes
fetching it from the Module is that we have to make sure they are equivalent.
We can get most of the way there by always constructing the pass with a Module.
In fact, the pass could be changed to point to an external DataLayout instead
of owning one to make this stricter.

Unfortunately, the C api passes a DataLayout, so it has to be up to the caller
to make sure the pass and the module are in sync.

llvm-svn: 202204
2014-02-25 23:25:17 +00:00
Rafael Espindola
32da4bdd4b Make DataLayout a plain object, not a pass.
Instead, have a DataLayoutPass that holds one. This will allow parts of LLVM
don't don't handle passes to also use DataLayout.

llvm-svn: 202168
2014-02-25 17:30:31 +00:00
Rafael Espindola
d89ca7eab7 Replace the F_Binary flag with a F_Text one.
After this I will set the default back to F_None. The advantage is that
before this patch forgetting to set F_Binary would corrupt a file on windows.
Forgetting to set F_Text produces one that cannot be read in notepad, which
is a better failure mode :-)

llvm-svn: 202052
2014-02-24 18:20:12 +00:00
Rafael Espindola
8b43142712 Make DisableIntegratedAS a TargetOption.
This replaces the old NoIntegratedAssembler with at TargetOption. This is
more flexible and will be used to forward clang's -no-integrated-as option.

llvm-svn: 201836
2014-02-21 03:13:54 +00:00
Rafael Espindola
f60d18d597 One last pass of DataLayout variable renaming.
llvm-svn: 201834
2014-02-21 02:01:42 +00:00
Eli Bendersky
76b2f4f843 Refactor TargetOptions initialization into a single place.
The same code (~20 lines) for initializing a TargetOptions object from CodeGen
cmdline flags is duplicated 4 times in 4 different tools. This patch moves it
into a utility function.

Since the CodeGen/CommandFlags.h file defines cl::opt flags in a header, it's
a bit of a touchy situation because we should only link them into tools. So this
patch puts the init function in the header.

llvm-svn: 201699
2014-02-19 17:09:35 +00:00
Rafael Espindola
98165a6a91 Remove support for not using .loc directives.
Clang itself was not using this. The only way to access it was via llc.

llvm-svn: 200862
2014-02-05 18:00:21 +00:00
Juergen Ributzka
bf21069834 Add target analysis passes to the codegen pipeline for MCJIT.
This patch adds the target analysis passes (usually TargetTransformInfo) to the
codgen pipeline. We also expose now the AddAnalysisPasses method through the C
API, because the optimizer passes would also benefit from better target-specific
cost models.

Reviewed by Andrew Kaylor

llvm-svn: 199926
2014-01-23 19:23:28 +00:00
Chandler Carruth
03b6c941a3 Re-sort #include lines again, prior to moving headers around.
llvm-svn: 199080
2014-01-13 08:04:33 +00:00
Chandler Carruth
076d51813d [PM] Rename the IR printing pass header to a more generic and correct
name to match the source file which I got earlier. Update the include
sites. Also modernize the comments in the header to use the more
recommended doxygen style.

llvm-svn: 199041
2014-01-12 11:10:32 +00:00
Chandler Carruth
7aa902a488 Move the LLVM IR asm writer header files into the IR directory, as they
are part of the core IR library in order to support dumping and other
basic functionality.

Rename the 'Assembly' include directory to 'AsmParser' to match the
library name and the only functionality left their -- printing has been
in the core IR library for quite some time.

Update all of the #includes to match.

All of this started because I wanted to have the layering in good shape
before I started adding support for printing LLVM IR using the new pass
infrastructure, and commandline support for the new pass infrastructure.

llvm-svn: 198688
2014-01-07 12:34:26 +00:00
Nico Weber
e7bb9e41e0 Port r198087 and r198089 (strip dead code by default) from make to cmake.
llvm-svn: 198198
2013-12-30 03:36:05 +00:00
Nico Weber
0b5179242e Strip dead code when linking by default with BFD ld (linux, ...) and ld64 (os x).
This reduces the size of clang-format from 22 MB to 1.8 MB, diagtool goes from
21 MB to 2.8 MB, libclang.so goes from 29 MB to 20 MB, etc.  The size of the
bin/ folder shrinks from 270 MB to 200 MB.

Targets that support plugins and don't already use EXPORTED_SYMBOL_FILE
(which libclang and libLTO already do) can set NO_DEAD_STRIP to opt out.

llvm-svn: 198087
2013-12-27 22:38:59 +00:00
NAKAMURA Takumi
955efe24ce [CMake] Update LLVM_LINK_COMPONENTS for each CMakeLists.txt.
llvm-svn: 196908
2013-12-10 11:13:32 +00:00
Will Dietz
dd5418f361 Export symbols in tools that support loading plugins.
llvm-svn: 196447
2013-12-05 01:01:58 +00:00
Bill Wendling
e7b7059f1d Use function attributes to indicate that we don't want to realign the stack.
Function attributes are the future! So just query whether we want to realign the
stack directly from the function instead of through a random target options
structure.

llvm-svn: 187618
2013-08-01 21:42:05 +00:00
Bill Wendling
a61c3eb016 Replace the "NoFramePointerElimNonLeaf" target option with a function attribute.
There's no need to specify a flag to omit frame pointer elimination on non-leaf
nodes...(Honestly, I can't parse that option out.) Use the function attribute
stuff instead.

llvm-svn: 187093
2013-07-25 00:34:29 +00:00
Bill Wendling
63482ebdd5 Recommit r186217 with testcase fix:
Use the function attributes to pass along the stack protector buffer size.

 Now that we have robust function attributes, don't use a command line option to
 specify the stack protecto buffer size.

llvm-svn: 186863
2013-07-22 20:15:21 +00:00
Rafael Espindola
2a9326a78f Add a wrapper for open.
This centralizes the handling of O_BINARY and opens the way for hiding more
differences (like how open behaves with directories).

llvm-svn: 186447
2013-07-16 19:44:17 +00:00
Chandler Carruth
c0b3faf509 Revert commit r186217 -- this is breaking bots:
http://lab.llvm.org:8013/builders/clang-x86_64-darwin11-nobootstrap-RAincremental/builds/4328

Original commit log:
  Use the function attributes to pass along the stack protector buffer
  size.

llvm-svn: 186234
2013-07-13 01:00:17 +00:00
Bill Wendling
c4d489b5ee Use the function attributes to pass along the stack protector buffer size.
Now that we have robust function attributes, don't use a command line option to
specify the stack protecto buffer size.

llvm-svn: 186217
2013-07-12 22:25:20 +00:00
Wan Xiaofei
7823455a4b Test commit access.
llvm-svn: 184278
2013-06-19 02:26:00 +00:00
Andy Gibbs
651d32efb2 Replace uses of the deprecated std::auto_ptr with OwningPtr.
llvm-svn: 179373
2013-04-12 10:56:28 +00:00
Chandler Carruth
970e41ab77 Manually update the dependencies in the Makefiles. It turns out that all
that work on the LLVMBuild based dependency specification didn't
actually work, we just now maintain dependencies in *3* places instead
of 2. Yay.

There may still be some missing dependencies, I'm still sifting through
the bots and my builds, but this is a step in the right direction.

llvm-svn: 177988
2013-03-26 03:45:47 +00:00
Chandler Carruth
5bf5043e5b Split out the IRReader header and the utility functions it provides into
its own library. These functions are bridging between the bitcode reader
and the ll parser which are in different libraries. Previously we didn't
have any good library to do this, and instead played fast and loose with
a "header only" set of interfaces in the Support library. This really
doesn't work well as evidenced by the recent attempt to add timing logic
to the these routines.

As part of this, make them normal functions rather than weird inline
functions, and sink the implementation into the library. Also clean up
the header to be nice and minimal.

This requires updating lots of build system dependencies to specify that
the IRReader library is needed, and several source files to not
implicitly rely upon the header file to transitively include all manner
of other headers.

If you are using IRReader.h, this commit will break you (the header
moved) and you'll need to also update your library usage to include
'irreader'. I will commit the corresponding change to Clang momentarily.

llvm-svn: 177971
2013-03-26 02:25:37 +00:00
Chandler Carruth
30bd563e01 Switch TargetTransformInfo from an immutable analysis pass that requires
a TargetMachine to construct (and thus isn't always available), to an
analysis group that supports layered implementations much like
AliasAnalysis does. This is a pretty massive change, with a few parts
that I was unable to easily separate (sorry), so I'll walk through it.

The first step of this conversion was to make TargetTransformInfo an
analysis group, and to sink the nonce implementations in
ScalarTargetTransformInfo and VectorTargetTranformInfo into
a NoTargetTransformInfo pass. This allows other passes to add a hard
requirement on TTI, and assume they will always get at least on
implementation.

The TargetTransformInfo analysis group leverages the delegation chaining
trick that AliasAnalysis uses, where the base class for the analysis
group delegates to the previous analysis *pass*, allowing all but tho
NoFoo analysis passes to only implement the parts of the interfaces they
support. It also introduces a new trick where each pass in the group
retains a pointer to the top-most pass that has been initialized. This
allows passes to implement one API in terms of another API and benefit
when some other pass above them in the stack has more precise results
for the second API.

The second step of this conversion is to create a pass that implements
the TargetTransformInfo analysis using the target-independent
abstractions in the code generator. This replaces the
ScalarTargetTransformImpl and VectorTargetTransformImpl classes in
lib/Target with a single pass in lib/CodeGen called
BasicTargetTransformInfo. This class actually provides most of the TTI
functionality, basing it upon the TargetLowering abstraction and other
information in the target independent code generator.

The third step of the conversion adds support to all TargetMachines to
register custom analysis passes. This allows building those passes with
access to TargetLowering or other target-specific classes, and it also
allows each target to customize the set of analysis passes desired in
the pass manager. The baseline LLVMTargetMachine implements this
interface to add the BasicTTI pass to the pass manager, and all of the
tools that want to support target-aware TTI passes call this routine on
whatever target machine they end up with to add the appropriate passes.

The fourth step of the conversion created target-specific TTI analysis
passes for the X86 and ARM backends. These passes contain the custom
logic that was previously in their extensions of the
ScalarTargetTransformInfo and VectorTargetTransformInfo interfaces.
I separated them into their own file, as now all of the interface bits
are private and they just expose a function to create the pass itself.
Then I extended these target machines to set up a custom set of analysis
passes, first adding BasicTTI as a fallback, and then adding their
customized TTI implementations.

The fourth step required logic that was shared between the target
independent layer and the specific targets to move to a different
interface, as they no longer derive from each other. As a consequence,
a helper functions were added to TargetLowering representing the common
logic needed both in the target implementation and the codegen
implementation of the TTI pass. While technically this is the only
change that could have been committed separately, it would have been
a nightmare to extract.

The final step of the conversion was just to delete all the old
boilerplate. This got rid of the ScalarTargetTransformInfo and
VectorTargetTransformInfo classes, all of the support in all of the
targets for producing instances of them, and all of the support in the
tools for manually constructing a pass based around them.

Now that TTI is a relatively normal analysis group, two things become
straightforward. First, we can sink it into lib/Analysis which is a more
natural layer for it to live. Second, clients of this interface can
depend on it *always* being available which will simplify their code and
behavior. These (and other) simplifications will follow in subsequent
commits, this one is clearly big enough.

Finally, I'm very aware that much of the comments and documentation
needs to be updated. As soon as I had this working, and plausibly well
commented, I wanted to get it committed and in front of the build bots.
I'll be doing a few passes over documentation later if it sticks.

Commits to update DragonEgg and Clang will be made presently.

llvm-svn: 171681
2013-01-07 01:37:14 +00:00
Chandler Carruth
43148d2e6e Convert the TargetTransformInfo from an immutable pass with dynamic
interfaces which could be extracted from it, and must be provided on
construction, to a chained analysis group.

The end goal here is that TTI works much like AA -- there is a baseline
"no-op" and target independent pass which is in the group, and each
target can expose a target-specific pass in the group. These passes will
naturally chain allowing each target-specific pass to delegate to the
generic pass as needed.

In particular, this will allow a much simpler interface for passes that
would like to use TTI -- they can have a hard dependency on TTI and it
will just be satisfied by the stub implementation when that is all that
is available.

This patch is a WIP however. In particular, the "stub" pass is actually
the one and only pass, and everything there is implemented by delegating
to the target-provided interfaces. As a consequence the tools still have
to explicitly construct the pass. Switching targets to provide custom
passes and sinking the stub behavior into the NoTTI pass is the next
step.

llvm-svn: 171621
2013-01-05 11:43:11 +00:00
Chandler Carruth
4c1f3c24db Move all of the header files which are involved in modelling the LLVM IR
into their new header subdirectory: include/llvm/IR. This matches the
directory structure of lib, and begins to correct a long standing point
of file layout clutter in LLVM.

There are still more header files to move here, but I wanted to handle
them in separate commits to make tracking what files make sense at each
layer easier.

The only really questionable files here are the target intrinsic
tablegen files. But that's a battle I'd rather not fight today.

I've updated both CMake and Makefile build systems (I think, and my
tests think, but I may have missed something).

I've also re-sorted the includes throughout the project. I'll be
committing updates to Clang, DragonEgg, and Polly momentarily.

llvm-svn: 171366
2013-01-02 11:36:10 +00:00
Chandler Carruth
03fda8f594 Sort a few more #include lines in tools/... unittests/... and utils/...
llvm-svn: 171363
2013-01-02 10:26:28 +00:00
NAKAMURA Takumi
3e21082d83 llvm/tools: Add #include "llvm/TargetTransformInfo.h"
llvm-svn: 169817
2012-12-11 05:53:37 +00:00
Chandler Carruth
800daa7d3d Sort the #include lines for tools/...
Again, tools are trickier to pick the main module header for than
library source files. I've started to follow the pattern of using
LLVMContext.h when it is included as a stub for program source files.

llvm-svn: 169252
2012-12-04 10:44:52 +00:00
Jakob Stoklund Olesen
bd37600705 Add a -time-compilations=<N> option to llc.
This causes llc to repeat the module compilation N times, making it
possible to get more accurate information from -time-passes when
compiling small modules.

llvm-svn: 169040
2012-11-30 21:42:47 +00:00
Pedro Artigas
a84c753671 One more step towards making doInitialization and doFinalization useful for
start up and clean up module passes, now that ASAN and TSAN are fixed the
tests pass

llvm-svn: 168905
2012-11-29 17:47:05 +00:00
Owen Anderson
ef8881a314 Revert r168635 "Step towards implementation of pass manager with doInitialization and doFinalization per module detangled from runOn?? calls, still has temporary code not to break ASAN to be removed when that pass conforms to the proposed model".
It appears to have broken at least one buildbot.

llvm-svn: 168654
2012-11-27 00:53:24 +00:00
Owen Anderson
4f32762479 Step towards implementation of pass manager with doInitialization and doFinalization per module detangled from runOn?? calls, still has temporary code not to break ASAN to be removed when that pass conforms to the proposed model
Patch by Pedro Artigas, with feedback from by Chandler Carruth.

llvm-svn: 168635
2012-11-26 23:54:47 +00:00
Owen Anderson
c7fb54baff Add doInitialization and doFinalization methods to ModulePass's, to allow them to be re-initialized and reused on multiple Module's.
Patch by Pedro Artigas.

llvm-svn: 168008
2012-11-15 00:14:15 +00:00
Nadav Rotem
3cce3abf28 Reapply the TargerTransformInfo changes, minus the changes to LSR and Lowerinvoke.
llvm-svn: 166248
2012-10-18 23:22:48 +00:00
Bob Wilson
b6adb70bdd Temporarily revert the TargetTransform changes.
The TargetTransform changes are breaking LTO bootstraps of clang.  I am
working with Nadav to figure out the problem, but I am reverting it for now
to get our buildbots working.

This reverts svn commits: 165665 165669 165670 165786 165787 165997
and I have also reverted clang svn 165741

llvm-svn: 166168
2012-10-18 05:43:52 +00:00
Nadav Rotem
b82a3821f7 Add a new interface to allow IR-level passes to access codegen-specific information.
llvm-svn: 165665
2012-10-10 22:04:55 +00:00
Micah Villmow
fe3338a7eb Move TargetData to DataLayout.
llvm-svn: 165403
2012-10-08 16:39:34 +00:00
Chad Rosier
db68185ff8 Add support for the --param ssp-buffer-size= driver option.
PR9673

llvm-svn: 162284
2012-08-21 16:15:24 +00:00
Bob Wilson
b173ddc53e Add test triples to fix win32 failures. Revert workaround from r161292.
I don't have a win32 system to test, so hopefully I got them all fixed here.

llvm-svn: 161519
2012-08-08 20:31:37 +00:00
NAKAMURA Takumi
eb88bde151 llc: Try to suppress failures since r161262 .
FIXME: Fix several tests on i686-win32 due to lacking of many libraries.
llvm-svn: 161292
2012-08-04 01:29:37 +00:00
Bob Wilson
7d92f01d57 Fix memcmp code-gen to honor -fno-builtin.
I noticed that SelectionDAGBuilder::visitCall was missing a check for memcmp
in TargetLibraryInfo, so that it would use custom code for memcmp calls even
with -fno-builtin.  I also had to add a new -disable-simplify-libcalls option
to llc so that I could write a test for this.

llvm-svn: 161262
2012-08-03 21:26:18 +00:00
Chad Rosier
f8c9c07e24 Tweak prose.
llvm-svn: 160478
2012-07-19 00:11:45 +00:00
Evan Cheng
6196c5f5f3 Target option DisableJumpTables is a gross hack. Move it to TargetLowering instead.
llvm-svn: 159611
2012-07-02 22:39:56 +00:00
Bob Wilson
a848f156de Extend TargetPassConfig to allow running only a subset of the normal passes.
This is still a work in progress but I believe it is currently good enough
to fix PR13122 "Need unit test driver for codegen IR passes".  For example,
you can run llc with -stop-after=loop-reduce to have it dump out the IR after
running LSR.  Serializing machine-level IR is not yet supported but we have
some patches in progress for that.

The plan is to serialize the IR to a YAML file, containing separate sections
for the LLVM IR, machine-level IR, and whatever other info is needed.  Chad
suggested that we stash the stop-after pass in the YAML file and use that
instead of the start-after option to figure out where to restart the
compilation.  I think that's a great idea, but since it's not implemented yet
I put the -start-after option into this patch for testing purposes.

llvm-svn: 159570
2012-07-02 19:48:45 +00:00
Duncan Sands
298b13c501 When users ask for -mcpu=help or -mattr=help, just output the help without
requiring a module.  Original patch by Sunay Ismail, simplified by Arnaud
de Grandmaison, then complicated by me (if a triple was specified on the
command line, output help for that triple, not for the default).

llvm-svn: 159268
2012-06-27 16:23:48 +00:00
Rafael Espindola
51d0d15c23 Fix llc's -print-before=pass and -print-after=pass.
llvm-svn: 159227
2012-06-26 21:33:36 +00:00
Lang Hames
7d298105e5 Rename fp-op fusion option (yet again) for compatibility with GCC option.
llvm-svn: 159042
2012-06-22 22:31:00 +00:00
Lang Hames
68cf87e3ef Rename -allow-excess-fp-precision flag to -fuse-fp-ops, and switch from a
boolean flag to an enum: { Fast, Standard, Strict } (default = Standard).

This option controls the creation by optimizations of fused FP ops that store
intermediate results in higher precision than IEEE allows (E.g. FMAs). The
behavior of this option is intended to match the behaviour specified by a
soon-to-be-introduced frontend flag: '-ffuse-fp-ops'.

Fast mode - allows formation of fused FP ops whenever they're profitable.

Standard mode - allow fusion only for 'blessed' FP ops. At present the only
blessed op is the fmuladd intrinsic. In the future more blessed ops may be
added.

Strict mode - allow fusion only if/when it can be proven that the excess
precision won't effect the result.

Note: This option only controls formation of fused ops by the optimizers.  Fused
operations that are explicitly requested (e.g. FMA via the llvm.fma.* intrinsic)
will always be honored, regardless of the value of this option.

Internally TargetOptions::AllowExcessFPPrecision has been replaced by
TargetOptions::AllowFPOpFusion.

llvm-svn: 158956
2012-06-22 01:09:09 +00:00
Lang Hames
f0b9601a6d Add DAG-combines for aggressive FMA formation.
This patch adds DAG combines to form FMAs from pairs of FADD + FMUL or
FSUB + FMUL. The combines are performed when:
(a) Either
      AllowExcessFPPrecision option (-enable-excess-fp-precision for llc)
        OR
      UnsafeFPMath option (-enable-unsafe-fp-math)
    are set, and
(b) TargetLoweringInfo::isFMAFasterThanMulAndAdd(VT) is true for the type of
    the FADD/FSUB, and
(c) The FMUL only has one user (the FADD/FSUB).

If your target has fast FMA instructions you can make use of these combines by
overriding TargetLoweringInfo::isFMAFasterThanMulAndAdd(VT) to return true for
types supported by your FMA instruction, and adding patterns to match ISD::FMA
to your FMA instructions.

llvm-svn: 158757
2012-06-19 22:51:23 +00:00
Rafael Espindola
38c45a939d Move the support for using .init_array from ARM to the generic
TargetLoweringObjectFileELF. Use this to support it on X86. Unlike ARM,
on X86 it is not easy to find out if .init_array should be used or not, so
the decision is made via TargetOptions and defaults to off.

Add a command line option to llc that enables it.

llvm-svn: 158692
2012-06-19 00:48:28 +00:00
Benjamin Kramer
b182297052 Object file output from llc isn't experimental anymore.
llvm-svn: 158305
2012-06-11 09:40:10 +00:00
Bob Wilson
387d610b8d Add an insertPass API to TargetPassConfig. <rdar://problem/11498613>
Besides adding the new insertPass function, this patch uses it to
enhance the existing -print-machineinstrs so that the MachineInstrs
after a specific pass can be printed.

Patch by Bin Zeng!

llvm-svn: 157655
2012-05-30 00:17:12 +00:00
Kevin Enderby
97a05ec660 Fix it so llvm-objdump -arch does accept x86 and x86-64 as valid arch names.
PR12731.  Patch by Meador Inge!

llvm-svn: 156444
2012-05-08 23:38:45 +00:00
Nick Lewycky
750a5347ef Move the JIT flags from llc to lli. These flags showed up as part of moving
backend flags in TargetOptions.h into their own class in r145714.

llvm-svn: 154993
2012-04-18 08:34:12 +00:00
Chandler Carruth
11c412fd2c Teach LLVM about a PIE option which, when enabled on top of PIC, makes
optimizations which are valid for position independent code being linked
into a single executable, but not for such code being linked into
a shared library.

I discussed the design of this with Eric Christopher, and the decision
was to support an optional bit rather than a completely separate
relocation model. Fundamentally, this is still PIC relocation, its just
that certain optimizations are only valid under a PIC relocation model
when the resulting code won't be in a shared library. The simplest path
to here is to expose a single bit option in the TargetOptions. If folks
have different/better designs, I'm all ears. =]

I've included the first optimization based upon this: changing TLS
models to the *Exec models when PIE is enabled. This is the LLVM
component of PR12380 and is all of the hard work.

llvm-svn: 154294
2012-04-08 17:51:45 +00:00
Andrew Trick
c3cc8fa604 RegAlloc superpass: includes phi elimination, coalescing, and scheduling.
Creates a configurable regalloc pipeline.

Ensure specific llc options do what they say and nothing more: -reglloc=... has no effect other than selecting the allocator pass itself. This patch introduces a new umbrella flag, "-optimize-regalloc", to enable/disable the optimizing regalloc "superpass". This allows for example testing coalscing and scheduling under -O0 or vice-versa.

When a CodeGen pass requires the MachineFunction to have a particular property, we need to explicitly define that property so it can be directly queried rather than naming a specific Pass. For example, to check for SSA, use MRI->isSSA, not addRequired<PHIElimination>.

CodeGen transformation passes are never "required" as an analysis

ProcessImplicitDefs does not require LiveVariables.

We have a plan to massively simplify some of the early passes within the regalloc superpass.

llvm-svn: 150226
2012-02-10 04:10:36 +00:00
Nick Lewycky
c1e7e2eaf6 Add a TargetOption for disabling tail calls.
llvm-svn: 148442
2012-01-19 00:34:10 +00:00
David Blaikie
8d47bb30e3 Remove unnecessary default cases in switches that cover all enum values.
llvm-svn: 147855
2012-01-10 16:47:17 +00:00
Dylan Noblesmith
40dea4f20c drop unneeded config.h includes
llvm-svn: 147197
2011-12-22 23:04:07 +00:00
Daniel Dunbar
30d6a45140 LLVMBuild: Remove trailing newline, which irked me.
llvm-svn: 146409
2011-12-12 19:48:00 +00:00
Nick Lewycky
7d0d3c2d58 Move global variables in TargetMachine into new TargetOptions class. As an API
change, now you need a TargetOptions object to create a TargetMachine. Clang
patch to follow.

One small functionality change in PTX. PTX had commented out the machine
verifier parts in their copy of printAndVerify. That now calls the version in
LLVMTargetMachine. Users of PTX who need verification disabled should rely on
not passing the command-line flag to enable it.

llvm-svn: 145714
2011-12-02 22:16:29 +00:00
Evan Cheng
2b239cbcf6 Sink codegen optimization level into MCCodeGenInfo along side relocation model
and code model. This eliminates the need to pass OptLevel flag all over the
place and makes it possible for any codegen pass to use this information.

llvm-svn: 144788
2011-11-16 08:38:26 +00:00
Daniel Dunbar
efa02a0c3d LLVMBuild: Add description files for the LLVM tools.
llvm-svn: 144417
2011-11-11 22:59:39 +00:00
Sebastian Pop
f72a853709 rename getHostTriple into getDefaultTargetTriple
llvm-svn: 143502
2011-11-01 21:32:20 +00:00
Nick Lewycky
7308946be2 Switch new .file directive emission off by default, change llc's flag for it to
-enable-dwarf-directory.

llvm-svn: 143326
2011-10-31 01:06:02 +00:00
Daniel Dunbar
81780d9982 build: Tidy up a bunch of tool Makefiles, and simplify where possible using the
new all-targets pseudo-component.

llvm-svn: 142401
2011-10-18 19:27:24 +00:00
Nick Lewycky
c551c1c5f9 Add support for a new extension to the .file directive:
.file filenumber "directory" "filename"

This removes one join+split of the directory+filename in MC internals. Because
bitcode files have independent fields for directory and filenames in debug info,
this patch may change the .o files written by existing .bc files.

llvm-svn: 142300
2011-10-17 23:05:28 +00:00
Chris Lattner
321335142c Enhance llvm::SourceMgr to support diagnostic ranges, the same way clang does. Enhance
the X86 asmparser to produce ranges in the one case that was annoying me, for example:

test.s:10:15: error: invalid operand for instruction
movl 0(%rax), 0(%edx)
              ^~~~~~~

It should be straight-forward to enhance filecheck, tblgen, and/or the .ll parser to use 
ranges where appropriate if someone is interested.

llvm-svn: 142106
2011-10-16 04:47:35 +00:00
Evan Cheng
420bf5446c Move TargetRegistry and TargetSelect from Target to Support where they belong.
These are strictly utilities for registering targets and components.

llvm-svn: 138450
2011-08-24 18:08:43 +00:00
Evan Cheng
7b4cb12a95 Combine all MC initialization routines into one. e.g. InitializeX86MCAsmInfo,
InitializeX86MCInstrInfo, etc. are combined into InitializeX86TargetMC.

llvm-svn: 135812
2011-07-22 21:58:54 +00:00
Chandler Carruth
9df16051f4 Move the registered target printing in version strings completely out of
the Support library. Now its part of the TargetRegistry, and the three
commands that care about this explicitly register this extra bit of
version information.

The set of commands which care was computed by intersecting those which
use the Support library's version string printing and those that
initialize all the registered targets in a way that produces
a meaningful list. The only odd ball out is that 'clang -cc1as -version'
no longer prints the registered targets. I don't think anyone is really
interested in that (especially as the fact that llvm-mc does so is under
a FIXME), but if someone really does want this back I'll happily apply
the same patch there.

llvm-svn: 135757
2011-07-22 07:50:48 +00:00
Evan Cheng
55d7fcc5f7 - Move CodeModel from a TargetMachine global option to MCCodeGenInfo.
- Introduce JITDefault code model. This tells targets to set different default
  code model for JIT. This eliminates the ugly hack in TargetMachine where
  code model is changed after construction.

llvm-svn: 135580
2011-07-20 07:51:56 +00:00
Evan Cheng
bfc0cac54d Introduce MCCodeGenInfo, which keeps information that can affect codegen
(including compilation, assembly). Move relocation model Reloc::Model from
TargetMachine to MCCodeGenInfo so it's accessible even without TargetMachine.

llvm-svn: 135468
2011-07-19 06:37:02 +00:00
Evan Cheng
cd7b5ef7fc LLC doesn't need to create MCInstrInfo's.
llvm-svn: 135369
2011-07-18 04:16:27 +00:00
Evan Cheng
9e8f90a020 Rename createAsmInfo to createMCAsmInfo and move registration code to MCTargetDesc to prepare for next round of changes.
llvm-svn: 135219
2011-07-14 23:50:31 +00:00
Evan Cheng
1346a63a0f - Eliminate MCCodeEmitter's dependency on TargetMachine. It now uses MCInstrInfo
and MCSubtargetInfo.
- Added methods to update subtarget features (used when targets automatically
  detect subtarget features or switch modes).
- Teach X86Subtarget to update MCSubtargetInfo features bits since the
  MCSubtargetInfo layer can be shared with other modules.
- These fixes .code 16 / .code 32 support since mode switch is updated in
  MCSubtargetInfo so MC code emitter can do the right thing.

llvm-svn: 134884
2011-07-11 03:57:24 +00:00
Evan Cheng
c9e252df68 Change createAsmParser to take a MCSubtargetInfo instead of triple,
CPU, and feature string. Parsing some asm directives can change
subtarget state (e.g. .code 16) and it must be reflected in other
modules (e.g. MCCodeEmitter). That is, the MCSubtargetInfo instance
must be shared.

llvm-svn: 134795
2011-07-09 05:47:46 +00:00
Evan Cheng
034261674b Fix the ridiculous SubtargetFeatures API where it implicitly expects CPU name to
be the first encoded as the first feature. It then uses the CPU name to look up
features / scheduling itineray even though clients know full well the CPU name
being used to query these properties.

The fix is to just have the clients explictly pass the CPU name!

llvm-svn: 134127
2011-06-30 01:53:36 +00:00
Evan Cheng
b4dc8bdd22 Sink SubtargetFeature and TargetInstrItineraries (renamed MCInstrItineraries) into MC.
llvm-svn: 134049
2011-06-29 01:14:12 +00:00
Evan Cheng
e6e324363e Remove dead option.
llvm-svn: 131947
2011-05-24 01:43:38 +00:00
Rafael Espindola
7901d3790e Add all the plumbing needed for MC to expand cfi to the old tables in
the final assembly. It is the same technique used when targeting
assemblers that don't support .loc.

llvm-svn: 130587
2011-04-30 03:44:37 +00:00
Daniel Dunbar
187b2237d2 llc: Fix a refacto, .loc support didn't work before 10.6.
llvm-svn: 129841
2011-04-20 00:47:19 +00:00
Daniel Dunbar
82a4062a4e ADT/Triple: Renambe isOSX... methods to isMacOSX for consistency with the OS
triple component.

llvm-svn: 129838
2011-04-20 00:14:25 +00:00
Daniel Dunbar
d11dec1469 llc: Eliminate a use of getDarwinMajorNumber().
- As before, there is a minor semantic change here (evidenced by the test
   change) for Darwin triples that have no version component. I debated changing
   the default behavior of isOSVersionLT, but decided it made more sense for
   triples to be explicit.

llvm-svn: 129805
2011-04-19 20:46:13 +00:00
Andrew Trick
7e2e555075 Added *hidden* flags -print-options and -print-all-options so
developers can see if their driver changed any cl::Option's. The
current implementation isn't perfect but handles most kinds of
options. This is nice to have when decomposing the stages of
compilation and moving between different drivers. It's also a good
sanity check when comparing results produced by different command line
invocations that are expected to produce the comparable results.

Note: This is not an attempt to prolong the life of cl::Option. On the
contrary, it's a placeholder for a feature that must exist when
cl::Option is replaced by a more appropriate framework. A new
framework needs: a central option registry, dynamic name lookup,
non-global containers of option values (e.g. per-module,
per-function), *and* the ability to print options values and their defaults at
any point during compilation.

llvm-svn: 128910
2011-04-05 18:54:36 +00:00
Andrew Trick
b7629d86a7 whitespace
llvm-svn: 128905
2011-04-05 18:41:31 +00:00
Devang Patel
3b8b65bc1a Disable .loc support on older darwin OSes.
llvm-svn: 120747
2010-12-02 23:03:57 +00:00
Devang Patel
56229e127d Add hiddent command line option, as an debugging aid, to disable .loc use.
llvm-svn: 120575
2010-12-01 15:36:49 +00:00
Michael J. Spencer
d5ec932c3a Merge System into Support.
llvm-svn: 120298
2010-11-29 18:16:10 +00:00
Dan Gohman
6645ce3f75 Move tool_output_file into its own file.
llvm-svn: 115973
2010-10-07 20:32:40 +00:00
Michael J. Spencer
90f807fda5 Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally."
This reverts commit r113632

Conflicts:

	cmake/modules/AddLLVM.cmake

llvm-svn: 113819
2010-09-13 23:59:48 +00:00
Michael J. Spencer
98ad3f2ea7 CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally.
llvm-svn: 113632
2010-09-10 21:14:25 +00:00
Dan Gohman
f9e09104f1 Make tool_output_file's raw_ostream instance a member variable instead
of a base class.

This makes it possible to unregister the file from FilesToRemove when
the file is done. Also, this eliminates the need for
formatted_tool_output_file.

llvm-svn: 112706
2010-09-01 14:20:41 +00:00
Dan Gohman
36b6dc3bc1 Fix llc to run the verifier once, not twice.
llvm-svn: 112532
2010-08-30 21:41:20 +00:00
Duncan Sands
604b706b87 Straighten out any triple strings passed on the command line before
they hit the rest of the system.

llvm-svn: 112344
2010-08-28 01:30:02 +00:00
Dan Gohman
bef725be86 Use the new tool_output_file in several tools. This fixes a variety
of problems with output files being left behind or output streams
being left unclosed. Fix llvm-mc to respect the -o option in all
modes, rather than hardcoding outs() in some cases.

llvm-svn: 111603
2010-08-20 01:07:01 +00:00
Dan Gohman
ab87c70bb8 Eliminate some redundancy by relying on raw_fd_ostream to handle "-"
properly.

llvm-svn: 111373
2010-08-18 17:55:15 +00:00
Dan Gohman
1f5b3b24c3 Don't translate "-" to outs() manually; raw_ostream does that
automatically.

llvm-svn: 111370
2010-08-18 17:26:50 +00:00
Michael J. Spencer
4ae3f44ae3 llc: Fix help typo as pointed out by Nick Lewycky.
llvm-svn: 110556
2010-08-08 23:26:49 +00:00
Michael J. Spencer
a12b50d9cf llc: Clarify -mc-relax-all description.
llvm-svn: 110477
2010-08-06 21:37:45 +00:00
Michael J. Spencer
3d80dcd82c llc: Add -mc-relax-all.
llvm-svn: 109954
2010-07-31 19:57:02 +00:00
Dan Gohman
bf0dac1735 Avoid calling outs() and fouts() when the stream isn't really needed.
llvm-svn: 104873
2010-05-27 19:47:36 +00:00
Dan Gohman
5f389dacab Remove the "WantsWholeFile" concept, as it's no longer needed. CBE
and the others use the regular addPassesToEmitFile hook now, and
llc no longer needs a bunch of redundant code to handle the
whole-file case.

llvm-svn: 103492
2010-05-11 19:57:55 +00:00
Chris Lattner
5fc1e951f6 make -filetype=obj default to emitting its output to foo.obj
when on windows instead of foo.o.  Patch by Nathan Jeffords!

llvm-svn: 103150
2010-05-06 00:54:20 +00:00
Daniel Dunbar
780c6fe8ba Remove dead option.
llvm-svn: 102621
2010-04-29 16:29:02 +00:00
Chris Lattner
5b4c7591ac add .o file writing for inline asm in llc. Here's a silly
demo:

$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
<inline asm>:1:2: error: unrecognized instruction
	abc incl    %eax
	^
LLVM ERROR: Error parsing inline asm

Only problem seems to be that the parser finalizes OutStreamer 
at the end of the first inline asm, which isn't what we want.
For example:

$ cat asm.c
int foo(int X) {
 __asm__ ("incl    %0" : "+r" (X));
 return X;
}
$ clang asm.c -S -o - -emit-llvm | llc
...
	subq	$8, %rsp
	movl	%edi, (%rsp)
	movl	%edi, %eax
	## InlineAsm Start
	incl    %eax
	## InlineAsm End
	movl	%eax, (%rsp)
	movl	%eax, 4(%rsp)
	addq	$8, %rsp
	ret
$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000	subq	$0x08,%rsp
0000000000000004	movl	%edi,(%rsp)
0000000000000007	movl	%edi,%eax
0000000000000009	incl	%eax
$ 

don't stop at inc!

llvm-svn: 100491
2010-04-05 23:11:24 +00:00
Dan Gohman
7f76052c8c Trim #includes.
llvm-svn: 99416
2010-03-24 19:56:17 +00:00
Dan Gohman
396921fedd llc doesn't need LinkAllVMCore.
llvm-svn: 99186
2010-03-22 16:59:44 +00:00
Dan Gohman
ed398abb31 Make llc opt into the addPassesToEmitFile verify pass.
llvm-svn: 97502
2010-03-01 21:45:21 +00:00
Chris Lattner
e8811c3222 change addPassesToEmitFile to return true on failure instead of its input,
add -filetype=null for performance testing and remove -filetype=dynlib,
which isn't planned to be implemented.

llvm-svn: 95202
2010-02-03 05:55:08 +00:00
Chris Lattner
78f57ac8dc Hook up -filetype=obj through the MachO streamer. Here's a demo:
$ cat t.ll 
@g = global i32 42
$ llc t.ll -o t.o -filetype=obj
$ nm t.o
00000000 D _g

There is still a ton of work left.  Instructions are not being encoded
yet apparently.

llvm-svn: 95162
2010-02-02 23:57:42 +00:00
Chris Lattner
7dd4ad3ced Remove a bunch of stuff around the edges of the ELF writer.
Now the only use of the ELF writer is the JIT, which won't be
easy to fix in the short term. :( :(

llvm-svn: 95148
2010-02-02 22:31:11 +00:00
Chris Lattner
7d162688a9 eliminate FileModel::Model, just use CodeGenFileType. The client
of the code generator shouldn't care what object format a target
uses.

llvm-svn: 95124
2010-02-02 21:06:45 +00:00
Chris Lattner
ff8ba8fc79 eliminate all forms of addPassesToEmitMachineCode except
the one used by the JIT.  Remove all forms of
addPassesToEmitFileFinish except the one used by the static
code generator.  Inline the remaining version of
addPassesToEmitFileFinish into its only caller.

llvm-svn: 95109
2010-02-02 19:14:27 +00:00
Nate Begeman
4d489ea053 Kill the Mach-O writer, and temporarily make filetype=obj an error.
The MCStreamer based assemblers will take over for this functionality.

llvm-svn: 95033
2010-02-01 23:56:58 +00:00
Jeffrey Yasskin
fb10587e50 Kill ModuleProvider and ghost linkage by inverting the relationship between
Modules and ModuleProviders. Because the "ModuleProvider" simply materializes
GlobalValues now, and doesn't provide modules, it's renamed to
"GVMaterializer". Code that used to need a ModuleProvider to materialize
Functions can now materialize the Functions directly. Functions no longer use a
magic linkage to record that they're materializable; they simply ask the
GVMaterializer.

Because the C ABI must never change, we can't remove LLVMModuleProviderRef or
the functions that refer to it. Instead, because Module now exposes the same
functionality ModuleProvider used to, we store a Module* in any
LLVMModuleProviderRef and translate in the wrapper methods.  The bindings to
other languages still use the ModuleProvider concept.  It would probably be
worth some time to update them to follow the C++ more closely, but I don't
intend to do it.

Fixes http://llvm.org/PR5737 and http://llvm.org/PR5735.

llvm-svn: 94686
2010-01-27 20:34:15 +00:00
Chris Lattner
5a57121631 make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.
llvm-svn: 94378
2010-01-24 20:43:08 +00:00
Chris Lattner
276811b58a Stop building RTTI information for *most* llvm libraries. Notable
missing ones are libsupport, libsystem and libvmcore.  libvmcore is
currently blocked on bugpoint, which uses EH.  Once it stops using
EH, we can switch it off.

This #if 0's out 3 unit tests, because gtest requires RTTI information.
Suggestions welcome on how to fix this.

llvm-svn: 94164
2010-01-22 06:49:46 +00:00
Nate Begeman
b6c8d75f62 Hook up llc's -filetype=obj to use MCStreamer if an MCCodeEmitter is available.
Remove most of old Mach-O Writer support, it has been replaced by MCMachOStreamer

Further refactoring to completely remove MachOWriter and drive the object file
writer with the AsmPrinter MCInst/MCSection logic is forthcoming.

llvm-svn: 93527
2010-01-15 18:51:18 +00:00
David Greene
a9aa7f2e15 Enable debug buffering.
llvm-svn: 92666
2010-01-05 01:30:21 +00:00
Evan Cheng
96e3c797d1 Add a CodeGenOpt::Less level to match -O1. It'll be used by clients which do not want post-regalloc scheduling.
llvm-svn: 84272
2009-10-16 21:02:20 +00:00
Dan Gohman
f289d3a1c9 Now that llc can read .ll files directly, teach it to recognize .ll as
an extension, so that the default output filename for foo.ll is foo.s,
not foo.ll.s

llvm-svn: 82071
2009-09-16 19:18:41 +00:00
Daniel Dunbar
92d6efefb4 Tweak comment.
llvm-svn: 80891
2009-09-03 05:47:22 +00:00
Douglas Gregor
d7f58a6cb0 Unbreak my CMake build. Say you'll link again.
llvm-svn: 80842
2009-09-02 22:45:31 +00:00
Dan Gohman
6ebdbf7f07 Switch llc from ParseBitcodeFile to ParseIRFile. This lets llc
transparently read either LLVM Assembly or LLVM Bitcode files.

llvm-svn: 80829
2009-09-02 19:35:19 +00:00
Dan Gohman
5f0f402eab Delete some unnecessary flushes.
llvm-svn: 80013
2009-08-25 17:48:17 +00:00
Dan Gohman
53f0d68f87 Make LLVM command-line tools overwrite their output files without -f.
This is conventional command-line tool behavior. -f now just means
"enable binary output on terminals".

Add a -f option to llvm-extract and llvm-link, for consistency.

Remove F_Force from raw_fd_ostream and enable overwriting and
truncating by default. Introduce an F_Excl flag to permit users to
enable a failure when the file already exists. This flag is
currently unused.

Update Makefiles and documentation accordingly.

llvm-svn: 79990
2009-08-25 15:34:52 +00:00
Chris Lattner
f16d8ade4f Change raw_fd_ostream to take flags as an optional bitmask
instead of as two bools.  Use this to add a F_Append flag
which has the obvious behavior.

Other unrelated changes conflated into this patch:

1. REmove EH stuff from llvm-dis and llvm-as, the try blocks
   are dead.
2. Simplify the filename inference code in llvm-as/llvm-dis,
   because raw_fd_ostream does the right thing with '-'.
3. Switch machine verifier to use raw_ostream instead of ostream
   (Which is the thing that needed append in the first place).

llvm-svn: 79807
2009-08-23 02:51:22 +00:00
Daniel Dunbar
85d2406691 No really, it's unused.
llvm-svn: 78047
2009-08-04 04:08:40 +00:00
Daniel Dunbar
a96d5b360b Provide target data from the module if the target machine doesn't have any.
llvm-svn: 77973
2009-08-03 17:34:19 +00:00
Daniel Dunbar
2781e4bd89 Remove now unused arguments from TargetRegistry::lookupTarget.
llvm-svn: 77950
2009-08-03 04:20:57 +00:00
Daniel Dunbar
775da1948b Pass target triple string in to TargetMachine constructor.
This is not just a matter of passing in the target triple from the module;
currently backends are making decisions based on the build and host
architecture. The goal is to migrate to making these decisions based off of the
triple (in conjunction with the feature string). Thus most clients pass in the
target triple, or the host triple if that is empty.

This has one important change in the way behavior of the JIT and llc.

For the JIT, it was previously selecting the Target based on the host
(naturally), but it was setting the target machine features based on the triple
from the module. Now it is setting the target machine features based on the
triple of the host.

For LLC, -march was previously only used to select the target, the target
machine features were initialized from the module's triple (which may have been
empty). Now the target triple is taken from the module, or the host's triple is
used if that is empty. Then the triple is adjusted to match -march.

The take away is that -march for llc is now used in conjunction with the host
triple to initialize the subtarget. If users want more deterministic behavior
from llc, they should use -mtriple, or set the triple in the input module.

llvm-svn: 77946
2009-08-03 04:03:51 +00:00
Daniel Dunbar
62e74f03c7 Add TargetRegistry::lookupTarget.
- This is a simplified mechanism which just looks up a target based on the
   target triple, with a few additional flags.

 - Remove getClosestStaticTargetForModule, the moral equivalent is now:
     lookupTarget(Mod->getTargetTriple, true, false, ...);

 - This no longer does the fuzzy matching with target data (based on endianness
   and pointer width) that getClosestStaticTargetForModule was doing, but this
   was deemed unnecessary.

llvm-svn: 77111
2009-07-26 02:12:58 +00:00
Daniel Dunbar
a567c0f537 Switch llc and createJIT to use simpler command line parsing for -march.
llvm-svn: 75890
2009-07-16 02:23:53 +00:00
Daniel Dunbar
f9b1d883dd Make sure targets are initialized before we do anything, even command line
processing.

llvm-svn: 75888
2009-07-16 02:04:54 +00:00
Owen Anderson
5c64fb5a80 To simplify the upcoming context-on-type change, switch all command line tools to using the default global context for now.
This will let us to hardwire stuff to the global context in the short term while the API is sorted out.

llvm-svn: 75846
2009-07-15 22:16:10 +00:00
Daniel Dunbar
5707dd7f73 Reapply TargetRegistry refactoring commits.
--- Reverse-merging r75799 into '.':
 U   test/Analysis/PointerTracking
U    include/llvm/Target/TargetMachineRegistry.h
U    include/llvm/Target/TargetMachine.h
U    include/llvm/Target/TargetRegistry.h
U    include/llvm/Target/TargetSelect.h
U    tools/lto/LTOCodeGenerator.cpp
U    tools/lto/LTOModule.cpp
U    tools/llc/llc.cpp
U    lib/Target/PowerPC/PPCTargetMachine.h
U    lib/Target/PowerPC/AsmPrinter/PPCAsmPrinter.cpp
U    lib/Target/PowerPC/PPCTargetMachine.cpp
U    lib/Target/PowerPC/PPC.h
U    lib/Target/ARM/ARMTargetMachine.cpp
U    lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
U    lib/Target/ARM/ARMTargetMachine.h
U    lib/Target/ARM/ARM.h
U    lib/Target/XCore/XCoreTargetMachine.cpp
U    lib/Target/XCore/XCoreTargetMachine.h
U    lib/Target/PIC16/PIC16TargetMachine.cpp
U    lib/Target/PIC16/PIC16TargetMachine.h
U    lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp
U    lib/Target/Alpha/AlphaTargetMachine.cpp
U    lib/Target/Alpha/AlphaTargetMachine.h
U    lib/Target/X86/X86TargetMachine.h
U    lib/Target/X86/X86.h
U    lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.h
U    lib/Target/X86/AsmPrinter/X86AsmPrinter.cpp
U    lib/Target/X86/AsmPrinter/X86IntelAsmPrinter.h
U    lib/Target/X86/X86TargetMachine.cpp
U    lib/Target/MSP430/MSP430TargetMachine.cpp
U    lib/Target/MSP430/MSP430TargetMachine.h
U    lib/Target/CppBackend/CPPTargetMachine.h
U    lib/Target/CppBackend/CPPBackend.cpp
U    lib/Target/CBackend/CTargetMachine.h
U    lib/Target/CBackend/CBackend.cpp
U    lib/Target/TargetMachine.cpp
U    lib/Target/IA64/IA64TargetMachine.cpp
U    lib/Target/IA64/AsmPrinter/IA64AsmPrinter.cpp
U    lib/Target/IA64/IA64TargetMachine.h
U    lib/Target/IA64/IA64.h
U    lib/Target/MSIL/MSILWriter.cpp
U    lib/Target/CellSPU/SPUTargetMachine.h
U    lib/Target/CellSPU/SPU.h
U    lib/Target/CellSPU/AsmPrinter/SPUAsmPrinter.cpp
U    lib/Target/CellSPU/SPUTargetMachine.cpp
U    lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp
U    lib/Target/Mips/MipsTargetMachine.cpp
U    lib/Target/Mips/MipsTargetMachine.h
U    lib/Target/Mips/Mips.h
U    lib/Target/Sparc/AsmPrinter/SparcAsmPrinter.cpp
U    lib/Target/Sparc/SparcTargetMachine.cpp
U    lib/Target/Sparc/SparcTargetMachine.h
U    lib/ExecutionEngine/JIT/TargetSelect.cpp
U    lib/Support/TargetRegistry.cpp

llvm-svn: 75820
2009-07-15 20:24:03 +00:00
Dan Gohman
9ced780576 Add a Force option to raw_fd_ostream to specify whether opening
an existing file is considered an error. Convert several tools
to use raw_fd_ostream instead of std::ostream, and to use this
new option instead of doing a manual check.

llvm-svn: 75801
2009-07-15 17:29:42 +00:00
Stuart Hastings
ef732a2bea Revert 75762, 75763, 75766..75769, 75772..75775, 75778, 75780, 75782 to repair broken LLVM-GCC build.
Will revert 75770 in the llvm-gcc trunk.

llvm-svn: 75799
2009-07-15 17:27:11 +00:00
Dan Gohman
60dce4c56b Use errs() instead of std::cerr.
llvm-svn: 75791
2009-07-15 16:35:29 +00:00
Daniel Dunbar
1d5b4e20c9 Migrate llc and the JIT to using the TargetRegistry for lookups.
- They still use the TargetMachineRegistry to populate the contents of the
   -march option (via the listener interface). We can't just populate it in the
   option parser because we can't expect the TargetRegistry to be populated yet
   (we no longer rely on static constructors).

 - There are a couple ways to finish killing off TargetMachineRegistry, but I
   haven't figured out the cleanest one yet...

llvm-svn: 75773
2009-07-15 11:36:15 +00:00
David Greene
9c8a1b9b90 Have asm printers use formatted_raw_ostream directly to avoid a
dynamic_cast<>.

llvm-svn: 75670
2009-07-14 20:18:05 +00:00
Bruno Cardoso Lopes
38373542a1 Add the Object Code Emitter class. Original patch by Aaron Gray, I did some
cleanup, removed some #includes and moved Object Code Emitter out-of-line.

llvm-svn: 74813
2009-07-06 05:09:34 +00:00
Owen Anderson
cf112e59c3 Hold the LLVMContext by reference rather than by pointer.
llvm-svn: 74640
2009-07-01 21:22:36 +00:00
Owen Anderson
81b8dabb53 Add a pointer to the owning LLVMContext to Module. This requires threading LLVMContext through a lot
of the bitcode reader and ASM parser APIs, as well as supporting it in all of the tools.

Patches for Clang and LLVM-GCC to follow.

llvm-svn: 74614
2009-07-01 16:58:40 +00:00
Chris Lattner
be0596427d switch to using llvm/Target/TargetSelect.h
llvm-svn: 73611
2009-06-17 16:42:19 +00:00
Douglas Gregor
f5291553f2 Introduce new headers whose inclusion forces linking and
initialization of all targets (InitializeAllTargets.h) or assembler
printers (InitializeAllAsmPrinters.h). This is a step toward the
elimination of relinked object files, so that we can build normal
archives.

llvm-svn: 73543
2009-06-16 20:12:29 +00:00
Devang Patel
8d170194e8 Add new function attribute - noimplicitfloat
Update code generator to use this attribute and remove NoImplicitFloat target option.
Update llc to set this attribute when -no-implicit-float command line option is used.

llvm-svn: 72959
2009-06-05 21:57:13 +00:00
Devang Patel
9757e4f9f3 Add new function attribute - noredzone.
Update code generator to use this attribute and remove DisableRedZone target option.
Update llc to set this attribute when -disable-red-zone command line option is used.

llvm-svn: 72894
2009-06-04 22:05:33 +00:00
Evan Cheng
0eb8616e89 Default llc / lli optimization to "Default", which corresponds to -O1 / -O2.
llvm-svn: 70934
2009-05-04 23:05:19 +00:00
Bill Wendling
9a6ed80b64 Remove unused flags.
llvm-svn: 70459
2009-04-30 00:57:51 +00:00
Bill Wendling
4df71cd268 Error out with bad optimization level specified.
llvm-svn: 70449
2009-04-29 23:46:43 +00:00
Bill Wendling
6e33661382 Remove LTO optimization level.
llvm-svn: 70445
2009-04-29 23:40:42 +00:00
Bill Wendling
40a162f75f Instead of passing in an unsigned value for the optimization level, use an enum,
which better identifies what the optimization is doing. And is more flexible for
future uses.

llvm-svn: 70440
2009-04-29 23:29:43 +00:00
Bill Wendling
7546bed590 Second attempt:
Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to
use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'll change the JIT with a follow-up patch.

llvm-svn: 70343
2009-04-29 00:15:41 +00:00
Bill Wendling
ef47ace92f r70270 isn't ready yet. Back this out. Sorry for the noise.
llvm-svn: 70275
2009-04-28 01:04:53 +00:00
Bill Wendling
2799e916c3 Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to
use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'm not 100% sure if it's necessary to change it there...

llvm-svn: 70270
2009-04-28 00:21:31 +00:00
Evan Cheng
129934ea28 CodeGen still defaults to non-verbose asm, but llc now overrides it and default to verbose.
llvm-svn: 67669
2009-03-25 01:48:21 +00:00
Chris Lattner
1b05680d5f Change various llvm utilities to use PrettyStackTraceProgram in
their main routines.  This makes the tools print their argc/argv
commands if they crash.

llvm-svn: 66248
2009-03-06 05:34:10 +00:00
Mikhail Glushenkov
49be18cfc6 Registry.h should not depend on CommandLine.h.
Split Support/Registry.h into two files so that we have less to
recompile every time CommandLine.h is changed.

llvm-svn: 62312
2009-01-16 07:02:28 +00:00
Mikhail Glushenkov
5000223556 Delete trailing whitespace.
llvm-svn: 62307
2009-01-16 06:53:46 +00:00
Misha Brukman
6c8b57ddfa Fix spacing to be uniform for parameters.
llvm-svn: 61528
2008-12-31 17:39:58 +00:00
Daniel Dunbar
a830cb14f3 Add Binary flag to raw_fd_ostream constructor.
Document raw_fd_ostream's treatment of "-".

llvm-svn: 59219
2008-11-13 05:01:07 +00:00
Oscar Fuentes
582a9fcc48 CMakeLists: removed asmprinter component from
tools/llc/CMakeLists.txt.

llvm-svn: 58678
2008-11-04 03:28:37 +00:00
Dan Gohman
9543edc4ef Fix command-line option printing to print two spaces where needed,
instead of requiring all "short description" strings to begin with
two spaces. This makes these strings less mysterious, and it fixes
some cases where short description strings mistakenly did not
begin with two spaces.

llvm-svn: 57521
2008-10-14 20:25:08 +00:00
Oscar Fuentes
0f25988689 Initial support for the CMake build system.
llvm-svn: 56419
2008-09-22 01:08:49 +00:00
Dan Gohman
e5a492f261 Don't silently ignore errors when opening output streams.
llvm-svn: 55120
2008-08-21 15:33:45 +00:00
Owen Anderson
2c1d54952b Use raw_ostream throughout the AsmPrinter.
llvm-svn: 55092
2008-08-21 00:14:44 +00:00
Anton Korobeynikov
dd94221bda Link GC metadata printers by default to llc
llvm-svn: 54892
2008-08-17 14:33:01 +00:00
Anton Korobeynikov
193b7db7c7 First step of implementing PR1538: move llvm2cpp logic to new 'target'
llvm-svn: 50189
2008-04-23 22:29:24 +00:00
Dan Gohman
a7040d914f Fix a memory leak in llc.
llvm-svn: 49793
2008-04-16 15:56:26 +00:00
Chris Lattner
309aeb140b remove attributions from tools.
llvm-svn: 45421
2007-12-29 20:44:31 +00:00
Chris Lattner
11718ad357 remove attributions from tools/utils makefiles.
llvm-svn: 45414
2007-12-29 20:07:17 +00:00
Gordon Henriksen
a6050b38d2 Switching TargetMachineRegistry to use the new generic Registry.
llvm-svn: 43094
2007-10-17 21:28:48 +00:00
Dan Gohman
2e8245a376 Move the space in overview output for commands out of each of the
commands and into the common code.

llvm-svn: 42752
2007-10-08 15:45:12 +00:00
Gabor Greif
5f705671e4 Here is the bulk of the sanitizing.
Almost all occurrences of "bytecode" in the sources have been eliminated.

llvm-svn: 37913
2007-07-05 17:07:56 +00:00
Chris Lattner
e24a5def42 use the new MemoryBuffer interfaces to simplify error reporting in clients.
llvm-svn: 36900
2007-05-06 23:45:49 +00:00