Commit Graph

14157 Commits

Author SHA1 Message Date
Argyrios Kyrtzidis
e9562b6cbc Introduce PackedVector, useful for storing a vector of values using a specific number of bits for each
value. Both signed and unsigned types can be used, e.g

   PackedVector<signed, 2> vec;

will create a vector accepting values -2, -1, 0, 1. Any other value will hit an assertion.

llvm-svn: 132325
2011-05-31 03:53:41 +00:00
Rafael Espindola
33f7d7f9fa Use the dwarf->llvm mapping to print register names in the cfi
directives.

Fixes PR9826.

llvm-svn: 132317
2011-05-30 20:20:15 +00:00
Rafael Espindola
5917c1f6ec Introduce the DwarfRegAlias class for declaring that two registers have the
same dwarf number. This will be used for creating a dwarf number to register
mapping.

The only case that needs this so far is the XMM/YMM registers that unfortunately
do have the same numbers.

llvm-svn: 132314
2011-05-30 17:49:59 +00:00
John McCall
645e5b19b7 ...this is not a good commit day for me.
llvm-svn: 132294
2011-05-29 19:44:55 +00:00
John McCall
46c7b963b2 On Darwin ARM, set the UNWIND_RESUME libcall to _Unwind_SjLj_Resume.
This is important for the correct lowering of unwind instructions
(which doesn't matter at all) and llvm.eh.resume calls (which does).

llvm-svn: 132291
2011-05-29 19:39:04 +00:00
Nadav Rotem
63c8747adf Refactor the type legalizer. Switch TargetLowering to a new enum - LegalizeTypeAction.
This patch does not change the behavior of the type legalizer. The codegen
produces the same code.
This infrastructural change is needed in order to enable complex decisions
for vector types (needed by the vector-select patch).

llvm-svn: 132263
2011-05-28 17:57:14 +00:00
John McCall
fd85fdee7c Change how tblgen generates attributes for intrinsics to use a single
switch.  With this newfound organization, teach tblgen how not to give
all intrinsics the 'nounwind' attribute.  Introduce a new intrinsic,
llvm.eh.resume, which does not have this attribute.  Documentation and uses
to follow.

llvm-svn: 132252
2011-05-28 06:31:34 +00:00
Charles Davis
6702c786ed When generating code for Win64 EH, emit StartProc and EndProc directives.
llvm-svn: 132250
2011-05-28 04:21:04 +00:00
Bruno Cardoso Lopes
6d5e369a10 Add support for ARM ldrexd/strexd intrinsics. They both use i32 register pairs
to load/store i64 values. Since there's no current support to explicitly
declare such restrictions, implement it by using specific hardcoded register
pairs during isel.

llvm-svn: 132248
2011-05-28 04:07:29 +00:00
Charles Davis
cf8d922dbe Stub out support for Win64-style exceptions. Note that this is merely using
the Win64 EH mechanism to implement GCC-style exceptions. LLVM supports
hardly anything else at this point!

llvm-svn: 132234
2011-05-27 23:47:32 +00:00
Rafael Espindola
2230168a0f Make size computation less brittle.
llvm-svn: 132222
2011-05-27 22:05:41 +00:00
Charles Davis
cb20ea9935 Add the suffix to the Win64 EH data sections' names if given. Add a test for
this. XFAIL'd, because the COFF AsmParser can't handle .section yet.

llvm-svn: 132220
2011-05-27 21:38:47 +00:00
Nadav Rotem
531aa71d22 Refactor getActionType and getTypeToTransformTo ; place all of the 'decision'
code in one place. Re-apply 131534 and fix the multi-step promotion of integers.

llvm-svn: 132217
2011-05-27 21:03:13 +00:00
Charles Davis
f835c87c83 Add a parameter to the Win64 EH section getters to get a section with a
suffix (e.g. .xdata$myfunc). The suffix part isn't implemented yet, but
I'll get to it in the next patch.

Fix up all callers of the affected functions. Make them pass said suffix to
the function.

llvm-svn: 132205
2011-05-27 19:09:24 +00:00
Charles Davis
5ebea6fc5f Start keeping track of where the various unwind instructions are in the prolog.
Use them to calculate the offset inside the prolog. Emit this value when
emitting the unwind codes.

llvm-svn: 132177
2011-05-27 03:25:01 +00:00
Chad Rosier
b87c4a6945 Renamed llvm.x86.sse42.crc32 intrinsics; crc64 doesn't exist.
crc32.[8|16|32] have been renamed to .crc32.32.[8|16|32] and
crc64.[8|16|32] have been renamed to .crc32.64.[8|64].

llvm-svn: 132163
2011-05-26 23:13:19 +00:00
Eric Christopher
94fbcd8d81 Comment cleanup.
llvm-svn: 132162
2011-05-26 22:54:27 +00:00
Charles Davis
a5045b7351 Fix definitions of UOP_SaveXMM128, UOP_SaveXMM128Big, and UOP_PushMachFrame
to match Microsoft's definitions.

llvm-svn: 132112
2011-05-26 05:24:15 +00:00
Charles Davis
0021487a8e Test .seh_startchained and .seh_endchained parsing.
Rework how the MCWin64EHUnwindInfo instances are stored. Fix issues with
chained unwind areas exposed by the test that were related to this.

The ChainedParent field had the wrong address, because when the chained unwind
info was added, the addresses shifted around. Now we store the pointers to the
structures, which are now allocated from the MC heap.

llvm-svn: 132106
2011-05-26 02:45:47 +00:00
Charles Davis
ede0f07dae Add tests for .seh_setframe and .seh_handlerdata parsing. Fix issues with
them.

I had to add a special SwitchSectionNoChange method to MCStreamer just for
.seh_handlerdata. If this isn't OK, please let me know, and I'll find some
other way to fix .seh_handlerdata streaming.

llvm-svn: 132084
2011-05-25 21:43:45 +00:00
Rafael Espindola
84604c0b6c Fix some issues Duncan found in the previous commit.
I kept the reference to the ABI since that is the common case. The
-fno-asynchronous-unwind-tables option is a user controlled way of breaking
the ABI.

llvm-svn: 132053
2011-05-25 12:54:08 +00:00
Frits van Bommel
271d62cbd3 Fix warning in the CMake build about redefining LLVM_PATH_XDOT_PY by making sure both definitions are identical. This used to produce warnings like
In file included from .../llvm/trunk/tools/lto/LTOCodeGenerator.cpp:45:
In file included from .../llvm/trunk/include/llvm/Support/system_error.h:225:
.../include/llvm/Config/config.h:591:9: warning: 'LLVM_PATH_XDOT_PY' macro redefined
#define LLVM_PATH_XDOT_PY ".../bin/xdot.py"
        ^
.../include/llvm/Config/llvm-config.h:98:9: note: previous definition is here
#define LLVM_PATH_XDOT_PY ""
        ^
1 warning generated.

(Paths edited for clarity)

Note: This only affected people who had xdot.py installed.
llvm-svn: 132050
2011-05-25 06:32:23 +00:00
Rafael Espindola
70213c7c5f Replace the -unwind-tables option with a per function flag. This is more
LTO friendly as we can now correctly merge files compiled with or without
-fasynchronous-unwind-tables.

llvm-svn: 132033
2011-05-25 03:44:17 +00:00
Charles Davis
1084ac5bb1 Implement the rest of the SEH directive-parsing methods in the COFFAsmParser.
Add a size alignment check to the .seh_stackalloc directive parser. Add a
more descriptive error message to the .seh_handler directive parser.

Add methods to the TargetAsmInfo struct in support of all this.

llvm-svn: 131992
2011-05-24 20:06:30 +00:00
Devang Patel
0b44360610 Remove dead code.
llvm-svn: 131974
2011-05-24 18:27:52 +00:00
Charles Davis
3ac82d9bb2 Add a method to TargetRegisterInfo to get the register number that the Win64 EH
scheme uses internally. Implement it for x86 (the only architecture that LLVM
supports for which this matters right now).

llvm-svn: 131969
2011-05-24 16:57:53 +00:00
Cameron Zwarich
e425894eaf Clean up the lazy initialization of DIBuilder a bit.
llvm-svn: 131956
2011-05-24 06:00:08 +00:00
Jakob Stoklund Olesen
222e83f44b Work around code generation bug in Visual Studio 2010.
See http://llvm.org/pr9976 for details.

llvm-svn: 131954
2011-05-24 03:20:56 +00:00
Cameron Zwarich
462b5db500 Make LoadAndStorePromoter preserve debug info and create llvm.dbg.values when
promoting allocas to SSA variables. Fixes <rdar://problem/9479036>.

llvm-svn: 131953
2011-05-24 03:10:43 +00:00
Chris Lattner
5fd8380a35 add a helper method to get the byval alignment of an argument.
llvm-svn: 131883
2011-05-22 23:57:23 +00:00
Charles Davis
a4187a96c9 Add methods to parse the SEH directives to the COFFAsmParser. Implement some
of them, particularly the ones that don't take arguments. Also implement
.seh_proc and .seh_handler.

llvm-svn: 131866
2011-05-22 21:12:15 +00:00
Frits van Bommel
df58ece78a Add a parameter to ConstantFoldTerminator() that callers can use to ask it to also clean up the condition of any conditional terminator it folds to be unconditional, if that turns the condition into dead code. This just means it calls RecursivelyDeleteTriviallyDeadInstructions() in strategic spots. It defaults to the old behavior.
I also changed -simplifycfg, -jump-threading and -codegenprepare to use this to produce slightly better code without any extra cleanup passes (AFAICT this was the only place in -simplifycfg where now-dead conditions of replaced terminators weren't being cleaned up). The only other user of this function is -sccp, but I didn't read that thoroughly enough to figure out whether it might be holding pointers to instructions that could be deleted by this.

llvm-svn: 131855
2011-05-22 16:24:18 +00:00
Chris Lattner
b2b8de15d8 another typo
llvm-svn: 131854
2011-05-22 15:44:02 +00:00
Chris Lattner
ddafd147a2 fix comment typo
llvm-svn: 131853
2011-05-22 15:34:37 +00:00
Chris Lattner
1520c4f4f0 Fix some minor typos and grammar.
llvm-svn: 131835
2011-05-22 04:44:48 +00:00
Charles Davis
d74119d139 Implement emission of all Win64 exception tables. Make the COFF streamer emit
these tables.

llvm-svn: 131833
2011-05-22 04:15:07 +00:00
Charles Davis
c23700bb65 Make the COFF streamer emit unwind info when processing a .seh_handlerdata
directive.

Implement emission of Win64 EH unwind info.

Pull in <cassert> in MCWin64EH.h so it can use the assert() macro.

llvm-svn: 131832
2011-05-22 03:01:05 +00:00
Chris Lattner
69a52dd280 random comment cleanups.
llvm-svn: 131829
2011-05-22 00:50:53 +00:00
Chris Lattner
03d83a7b9b remove StandardPasses, it has been replaced with PassManagerBuilder
llvm-svn: 131827
2011-05-22 00:30:45 +00:00
Chris Lattner
6e81571c48 add support for LTO passes.
llvm-svn: 131820
2011-05-22 00:14:20 +00:00
Charles Davis
49f650f80b Include DataTypes.h from this header to get the uint*_t types.
llvm-svn: 131817
2011-05-22 00:05:26 +00:00
Charles Davis
53b696daee Allow access to the .pdata and .xdata sections through the TargetAsmInfo
class.

llvm-svn: 131816
2011-05-22 00:03:24 +00:00
Chris Lattner
03847f8199 add an extension point mechanism that allow plugins to add stuff to
the pass manager.

llvm-svn: 131814
2011-05-21 23:50:37 +00:00
Nick Lewycky
0539f44b9f Add CreateLifetimeStart and CreateLifetimeEnd to the IRBuilder, with plans to
use these soon.

llvm-svn: 131812
2011-05-21 23:14:36 +00:00
Chris Lattner
d2e2d612c0 add a new PassManagerBuilder class to replace StandardPasses.h
llvm-svn: 131807
2011-05-21 20:39:42 +00:00
Chris Lattner
777808dcaf add a copy ctor to TargetLibraryInfo.
llvm-svn: 131806
2011-05-21 20:09:13 +00:00
Eli Friedman
58beee1262 PR7952: Make isa<> use the same logic as cast<>, so that they both work
consistently.

llvm-svn: 131803
2011-05-21 19:13:10 +00:00
Charles Davis
7f9c007dce A handler for a function in the Win64 EH scheme can be both an unwind handler
and an exception handler. Handle that case.

Also, add an 'Emitted' member to the MCWin64EHUnwindInfo struct. It will be
needed later.

llvm-svn: 131791
2011-05-21 15:57:49 +00:00
Andrew Trick
9f867fd2dc Have Program::Wait return -2 for crashed and timeouts instead of embedding
info in the error message. Per Dan's request.

llvm-svn: 131780
2011-05-21 00:56:46 +00:00
Charles Davis
989cc73ef3 Add .pdata and .xdata sections to the COFF TLOF implementation.
llvm-svn: 131763
2011-05-20 22:13:55 +00:00