feaeb36edf
Fix a redundant-return warning.
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llvm-svn: 104958
2010-05-28 16:50:01 +00:00
862f034188
Detect self-referential values.
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llvm-svn: 104957
2010-05-28 16:45:33 +00:00
c1e216583f
Revert 104841, 104842, 104876 due to buildbot failures. Radar 7424645.
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llvm-svn: 104953
2010-05-28 16:41:07 +00:00
cef9fc37f4
Eli pointed out that va_arg instruction result values don't
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reference the stack.
llvm-svn: 104951
2010-05-28 16:34:49 +00:00
54d7aaa819
Teach lint how to look through simple store+load pairs and other
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effective no-op constructs, to make it more effective on
unoptimized IR.
llvm-svn: 104950
2010-05-28 16:21:24 +00:00
826bdf8c10
Move FindAvailableLoadedValue isSafeToLoadUnconditionally out of
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lib/Transforms/Utils and into lib/Analysis so that Analysis passes
can use them.
llvm-svn: 104949
2010-05-28 16:19:17 +00:00
a3b6c4b529
ConstantFoldConstantExpression can theoretically return null.
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llvm-svn: 104948
2010-05-28 16:12:08 +00:00
df5d7dcef1
Teach instcombine to promote alloca array sizes.
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llvm-svn: 104945
2010-05-28 15:09:00 +00:00
ddba4b725a
Add a lint check for returning the address of stack memory.
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llvm-svn: 104936
2010-05-28 04:33:42 +00:00
05a6555acb
Fix instcombine's handling of alloca to accept non-i32 types.
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llvm-svn: 104935
2010-05-28 04:33:04 +00:00
9da5bb0756
Bitcode support for allocas with arbitrary array size types.
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llvm-svn: 104915
2010-05-28 01:38:28 +00:00
3e0fbafab2
Fix typo.
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llvm-svn: 104914
2010-05-28 01:29:50 +00:00
e2099e8088
Fix typo.
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llvm-svn: 104913
2010-05-28 01:17:51 +00:00
2140a74979
Eliminate the restriction that the array size in an alloca must be i32.
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This will help reduce the amount of casting required on 64-bit targets.
llvm-svn: 104911
2010-05-28 01:14:11 +00:00
b6112e8706
Add the cc_out operand for t2RSBrs instructions. I missed this when I changed
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the instruction class for t2RSB to add that operand in svn r104582.
Radar 8033757.
llvm-svn: 104907
2010-05-28 00:27:15 +00:00
b613ae2c89
Add a -regalloc=default option that chooses a register allocator based on the -O
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optimization level.
This only really affects llc for now because both the llvm-gcc and clang front
ends override the default register allocator. I intend to remove that code later.
llvm-svn: 104904
2010-05-27 23:57:25 +00:00
faa3abbe39
Update the saved stack pointer in the sjlj function context following either
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an alloca() or an llvm.stackrestore(). rdar://8031573
llvm-svn: 104900
2010-05-27 23:49:24 +00:00
c2ebe0334a
Use report_fatal_error, not llvm_unreachable.
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llvm-svn: 104899
2010-05-27 23:45:31 +00:00
c9f532dddc
back out 104862/104869. Can reuse stacksave after all. Very cool.
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llvm-svn: 104897
2010-05-27 23:11:57 +00:00
288999b829
Factor out the handler work from SignalHandler into a helper function,
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and change llvm::sys::RunInterruptHandlers to call that function directly
instead of calling SignalHandler, because the rest of SignalHandler
invokes side effects which aren't appropriate, including raising the
signal.
llvm-svn: 104896
2010-05-27 23:11:55 +00:00
3d3ee87d4e
llvm can't correctly support 'H', 'Q' and 'R' modifiers. Just mark it an error.
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llvm-svn: 104891
2010-05-27 22:08:38 +00:00
9738f64bd9
MC/X86: Add aliases for Jcc variants.
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llvm-svn: 104890
2010-05-27 21:33:19 +00:00
6debf89587
Eliminate some unnessary Path::exists() calls.
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llvm-svn: 104888
2010-05-27 20:51:54 +00:00
a880546c65
Don't flush the raw_ostream in llvm::WriteBitcodeToFile; it's at
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the wrong level. Clients which need to leave the stream open but
which still require the bitcode bits to be on disk should call
flush themselves.
llvm-svn: 104885
2010-05-27 20:26:51 +00:00
7a9dedf0ab
Do not drop location info for inlined function args.
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llvm-svn: 104884
2010-05-27 20:25:04 +00:00
40e62dfdc0
Fix some bad fall-throughs in a switch statement. Both the 'Q' and 'R' cases
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should fall through to the 'H' case, but instead 'Q' was falling through to 'R'
so that it would do the wrong thing for a big-endian ARM target.
llvm-svn: 104883
2010-05-27 20:23:42 +00:00
9e43c07bc5
Mark some math lib intrinsic nodes Legal on SSE4.1.
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No functional effect as these nodes are not generated yet.
llvm-svn: 104879
2010-05-27 20:12:41 +00:00
d9225cee20
Don't special-case stdout in llvm::WriteBitcodeToFile; just consider
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it to be the caller's responsibility to provide a stream in binary
mode. This fixes a layering violation and avoids an outs() call.
llvm-svn: 104878
2010-05-27 20:06:51 +00:00
f162eace49
Teach instCombine to remove malloc+free if malloc's only uses are comparisons
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to null. Patch by Matti Niemenmaa.
llvm-svn: 104871
2010-05-27 19:09:06 +00:00
b68dfb45f5
hook ISD::STACKADDR to an intrinsic
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llvm-svn: 104869
2010-05-27 18:52:11 +00:00
dc53f1cb5c
FastISel doesn't yet handle callee-pop functions.
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To support this, move IsCalleePop from X86ISelLowering to X86Subtarget.
llvm-svn: 104866
2010-05-27 18:43:40 +00:00
5cde219fb1
add ISD::STACKADDR to get the current stack pointer. Will be used by sjlj EH
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to update the jmpbuf in the presence of VLAs.
llvm-svn: 104862
2010-05-27 18:23:48 +00:00
54b07ad2cd
Merge basic binops SSE 1 & 2 instruction classes. This is a step towards refactoring
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common code between SSE versions.
llvm-svn: 104860
2010-05-27 18:17:40 +00:00
c36b1f35f0
Add basic error checking to MemoryBuffer::getSTDIN.
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llvm-svn: 104855
2010-05-27 17:31:51 +00:00
ece4bf5148
Use the return value of getMagicNumber instead of using a
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separate canRead() call.
llvm-svn: 104853
2010-05-27 17:18:38 +00:00
78d1e84521
Don't bother clearing the Magic string when the magic number
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can't be read, since it isn't cleared on other error paths.
llvm-svn: 104852
2010-05-27 17:14:10 +00:00
16f4bd8140
Don't bother checking canRead() before calling getMagicNumber();
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getMagicNumber() does its own error checking.
llvm-svn: 104851
2010-05-27 17:12:23 +00:00
5e6b71ce34
inlined function's arguments need a label to mark the start point because they are not directly attached to current function.
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llvm-svn: 104848
2010-05-27 16:47:30 +00:00
8e99e50d08
Support for nested functions/classes in debug output. Radar 7424645.
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llvm-svn: 104841
2010-05-27 16:16:54 +00:00
eaddfac539
Rearrange conditionals so we don't get caught with the correct type as wrong.
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llvm-svn: 104793
2010-05-27 00:52:31 +00:00
6b9a9fe207
Simplify. Eliminate unneeded debug_loc entry.
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llvm-svn: 104785
2010-05-26 23:55:23 +00:00
d67defdfe2
Avoid counting InlineAsm as a call - it prevents loop unrolling.
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PR7026
Patch by Pekka Jääskeläinen!
llvm-svn: 104780
2010-05-26 22:40:28 +00:00
084bcb1322
Fix Lint printing warnings multiple times. Remove the ErrorStr
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option from lintModule, which was an artifact from being
based on Verifier code.
llvm-svn: 104765
2010-05-26 22:28:53 +00:00
c0b69020cd
AsmMatcher/X86: Mark _REV instructions as "code gen only", they aren't expected
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to be matched.
llvm-svn: 104757
2010-05-26 22:21:28 +00:00
a20a5cd24f
Reinstate checking of stackrestore, with checking for both Read
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and Write, and add a comment explaining this.
llvm-svn: 104756
2010-05-26 22:21:25 +00:00
4f6da9e3a8
Give SubRegIndex names to all ARM subregisters. This will be required by
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TableGen shortly.
llvm-svn: 104754
2010-05-26 22:15:03 +00:00
996bc42a26
Stackrestore is not a load.
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llvm-svn: 104752
2010-05-26 22:00:10 +00:00
ddee3cb163
Add FIXME comment to remove this.
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llvm-svn: 104749
2010-05-26 21:53:50 +00:00
c96c6db59d
Remove a TODO which isn't practical.
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llvm-svn: 104748
2010-05-26 21:50:41 +00:00
b33dfbcba4
MC: Add TargetMachine support for setting the value of MCRelaxAll with
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-filetype=obj.
llvm-svn: 104747
2010-05-26 21:48:55 +00:00
Dan Gohman