Commit Graph

27057 Commits

Author SHA1 Message Date
Dan Gohman
c097f9628e Rename SelectionDAGISel::Schedule to
SelectionDAGISel::CreateScheduler, and make it just create the
scheduler. Leave running the scheduler to the higher-level code.
This makes the higher-level code a little more explicit and
easier to follow, and will help enable some future refactoring.

llvm-svn: 63944
2009-02-06 18:26:51 +00:00
Sanjiv Gupta
90fd43f44d Print globl directive for variables with external linkage (global variables).
llvm-svn: 63943
2009-02-06 18:24:59 +00:00
Dan Gohman
2ae1006f93 Delete an unused member function.
llvm-svn: 63941
2009-02-06 18:19:52 +00:00
Evan Cheng
e00df1d39c Move getPointerRegClass from TargetInstrInfo to TargetRegisterInfo.
llvm-svn: 63938
2009-02-06 17:43:24 +00:00
Dan Gohman
5784cf7f6d Move ScheduleDAGSDNodes.h to be a private header. Front-ends
that previously included this header should include
SchedulerRegistry.h instead.

llvm-svn: 63937
2009-02-06 17:22:58 +00:00
Evan Cheng
381b2df5ff Add TargetInstrInfo::isSafeToMoveRegisterClassDefs. It returns true if it's safe to move an instruction which defines a value in the register class. Replace pre-splitting specific IgnoreRegisterClassBarriers with this new hook.
llvm-svn: 63936
2009-02-06 17:17:30 +00:00
Dan Gohman
2d402dd7cd Move ScheduleDAGInstrs.h to be a private header. Front-ends
that used this header to select a scheduling policy should
use SchedulerRegistry.h instead (llvm-gcc and clang were
updated a while ago).

llvm-svn: 63934
2009-02-06 17:12:10 +00:00
Devang Patel
85ae609834 Ignore DbgInfoIntrinsics.
llvm-svn: 63923
2009-02-06 06:19:06 +00:00
Chris Lattner
5118081112 fix PR3489, use bits instead of bytes.
llvm-svn: 63916
2009-02-06 04:34:07 +00:00
Dale Johannesen
cda84103ff get rid of some non-DebugLoc getTargetNode variants.
llvm-svn: 63909
2009-02-06 02:08:06 +00:00
Dale Johannesen
e95c76b65e Get rid of one more non-DebugLoc getNode and
its corresponding getTargetNode.  Lots of
caller changes.

llvm-svn: 63904
2009-02-06 01:31:28 +00:00
Owen Anderson
475c341202 Fix a crasher: we need to check that the function is non-null before using it!
llvm-svn: 63902
2009-02-06 00:13:43 +00:00
Owen Anderson
acbec98578 Refactor my previous change to maintain the distinction between AliasAnalysis and BasicAliasAnalysis. This involves some wider changes because it
folds away some never-used methods.

llvm-svn: 63900
2009-02-05 23:36:27 +00:00
Devang Patel
a6f77d01c7 Ignore dbg intrinsics while propagating conditional expression info. Take 2.
llvm-svn: 63898
2009-02-05 23:32:52 +00:00
Evan Cheng
6a938dd9e7 isAsCheapAsMove instructions can have register src operands. Check if they are really re-materializable.
This fixes sse.expandfft and sse.stepfft.

llvm-svn: 63890
2009-02-05 22:24:17 +00:00
Dale Johannesen
c96091a672 Remove a non-DebugLoc version of getNode.
llvm-svn: 63889
2009-02-05 22:07:54 +00:00
Devang Patel
72f5fba371 Revert rev. 63876. It is causing llvm-gcc bootstrap failure.
llvm-svn: 63888
2009-02-05 21:46:41 +00:00
Dale Johannesen
b218273a7a Remove 3 non-DebugLoc variants of getNode.
llvm-svn: 63886
2009-02-05 21:20:44 +00:00
Devang Patel
5b3fe253c5 Remove dead blocks in the end.
llvm-svn: 63880
2009-02-05 19:59:42 +00:00
Devang Patel
66eee02024 Ignore dbg intrinsics while propagating conditional expression info.
llvm-svn: 63876
2009-02-05 19:15:39 +00:00
Evan Cheng
078ac6071d Machine LICM increases register pressure and it almost always increase code size. For now, disable it for optimizing for size.
llvm-svn: 63856
2009-02-05 08:51:13 +00:00
Evan Cheng
b36e3e34e7 Turn on machine LICM in non-fast mode.
llvm-svn: 63855
2009-02-05 08:46:33 +00:00
Evan Cheng
5087dd8359 Teach machine licm to CSE hoisted instructions.
llvm-svn: 63854
2009-02-05 08:45:46 +00:00
Evan Cheng
7ed9ce65f7 ReMaterializeTrivialDef need to trim the live interval to the last kill if the copy kills the source register. This fixes uint64tof64.ll after ARM::MOVi is marked as isAsCheapAsAMove.
llvm-svn: 63853
2009-02-05 08:45:04 +00:00
Evan Cheng
87def37f67 A few more isAsCheapAsAMove.
llvm-svn: 63852
2009-02-05 08:42:55 +00:00
Chris Lattner
d8f77bbc07 if we have a large GEP offset on a 32-bit or other target, make
sure to print the value properly sext'd to the right pointer size.
This fixes PR3481.

llvm-svn: 63843
2009-02-05 06:55:21 +00:00
Owen Anderson
902d570061 Pre-alloc splitting needs to be more careful to avoid inserting spills/restores
between call frame setup/restore points.  Unfortunately, this regresses 
code size a bit, but at least it's correct now!

llvm-svn: 63837
2009-02-05 05:58:41 +00:00
Mon P Wang
50369c6847 Fix a bug where we were not emitting a cvt rnd sat node for converting
between a unsigned integer and signed integer.

llvm-svn: 63831
2009-02-05 04:47:42 +00:00
Dale Johannesen
fa28929927 Reapply 63765. Patches for clang and llvm-gcc to follow.
llvm-svn: 63812
2009-02-05 01:49:45 +00:00
Dale Johannesen
c901d013fb Get rid of 3 non-DebugLoc getNode variants.
llvm-svn: 63808
2009-02-05 01:01:16 +00:00
Devang Patel
e665f78460 Ignore dbg intrinsics while folding switch instruction.
llvm-svn: 63802
2009-02-05 00:30:42 +00:00
Dale Johannesen
c2896f9310 Remove non-DebugLoc versions of getMergeValues, ZeroExtendInReg.
llvm-svn: 63800
2009-02-05 00:20:09 +00:00
Dale Johannesen
d27bc65e74 Remove non-DebugLoc forms of CopyToReg and CopyFromReg.
Adjust callers.

llvm-svn: 63789
2009-02-04 23:02:30 +00:00
Dale Johannesen
f6e1822ccd Reverting 63765. This broke the build of both clang
and llvm-gcc.

llvm-svn: 63786
2009-02-04 22:47:25 +00:00
Devang Patel
10be164b28 Ignore dbg intrinsics.
llvm-svn: 63781
2009-02-04 21:39:48 +00:00
Stuart Hastings
010b5858c1 80 column rule.
llvm-svn: 63768
2009-02-04 20:30:10 +00:00
Dale Johannesen
15a801f11d Remove non-DebugLoc versions of getLoad and getStore.
Adjust the many callers of those versions.

llvm-svn: 63767
2009-02-04 20:06:27 +00:00
Nate Begeman
66f10b55ed New feature: add support for target intrinsics being defined in the
target directories themselves.  This also means that VMCore no longer
needs to know about every target's list of intrinsics.  Future work
will include converting the PowerPC target to this interface as an
example implementation.

llvm-svn: 63765
2009-02-04 19:47:21 +00:00
Mon P Wang
83f8f82e8a Avoids generating a legalization assert for the case where a vector type is legal
but when legalizing the operation, we split the vector type and generate a library
call whose type needs to be promoted. For example, X86 with SSE on but MMX off, 
a divide v2i64 will be scalarized to 2 calls to a library using i64.

llvm-svn: 63760
2009-02-04 19:38:14 +00:00
Chris Lattner
feb6b56242 Bill implemented this.
llvm-svn: 63752
2009-02-04 19:09:07 +00:00
Chris Lattner
eae4653469 add a note, this is why we're faster at SciMark-MonteCarlo with
SSE disabled.

llvm-svn: 63751
2009-02-04 19:08:01 +00:00
Evan Cheng
04be5342b1 Skip over zero registers.
llvm-svn: 63748
2009-02-04 18:18:58 +00:00
Chris Lattner
9e3a296933 allow main to have any integer type.
llvm-svn: 63743
2009-02-04 17:48:18 +00:00
Dan Gohman
1cd89d625c Minor code cleanups; no functionality change.
llvm-svn: 63740
2009-02-04 17:28:58 +00:00
Stuart Hastings
9d89863489 Since I'm obliged to work with a development OS that currently doesn't
support GraphViz, I've been using the foo->dump() facility.  This
patch is a minor rewrite to the SelectionDAG dump() stuff to make it a
little more helpful.  The existing foo->dump() functionality does not
change; this patch adds foo->dumpr().  All of this is only useful when
running LLVM under a debugger.

llvm-svn: 63736
2009-02-04 16:46:19 +00:00
Duncan Sands
6b95b76bca Allow the inverse transform x86_fp80 -> i80 (also
fires during the Ada build).

llvm-svn: 63731
2009-02-04 11:17:06 +00:00
Duncan Sands
528bb91ea8 Fix PR3468: a crash when constant folding a bitcast of
i80 to x86 long double (this was presumably generated
by sroa).

llvm-svn: 63730
2009-02-04 10:17:14 +00:00
Evan Cheng
ed9464bdec Don't call isInvariantLoad twice.
llvm-svn: 63729
2009-02-04 09:21:58 +00:00
Evan Cheng
d80609a7b3 Don't bother hoisting out a "cheap" instruction if all of its uses are PHIs. LICM "cheap" instructions are not particularly beneficial to start with. This will just end up making the copies harder to coalesce.
llvm-svn: 63728
2009-02-04 09:19:56 +00:00
Evan Cheng
68f918e570 For now, only hoist re-materilizable instructions. LICM will increase register pressure. We want to avoid spilling more instructions if it's possible.
llvm-svn: 63725
2009-02-04 07:17:49 +00:00