Benjamin Kramer [Fri, 1 Apr 2011 22:22:11 +0000 (22:22 +0000)]
Tweaks to the icmp+sext-to-shifts optimization to address Frits' comments:
- Localize the check if an icmp has one use to a place where we know we're
introducing something that's likely more expensive than a sext from i1.
- Add an assert to make sure a case that would lead to a miscompilation is
folded away earlier.
- Fix a typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128744
91177308-0d34-0410-b5e6-
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Evan Cheng [Fri, 1 Apr 2011 22:09:28 +0000 (22:09 +0000)]
Avoid de-referencing pass beginning of a basic block. No small test case possible. rdar://
9216009
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128743
91177308-0d34-0410-b5e6-
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Akira Hatanaka [Fri, 1 Apr 2011 21:56:02 +0000 (21:56 +0000)]
Remove redundant code. There are assignments to variables Base and Offset right after the code that is removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128742
91177308-0d34-0410-b5e6-
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Akira Hatanaka [Fri, 1 Apr 2011 21:41:06 +0000 (21:41 +0000)]
Simplifies logic for printing target flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128741
91177308-0d34-0410-b5e6-
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Oscar Fuentes [Fri, 1 Apr 2011 21:39:38 +0000 (21:39 +0000)]
CMake: remove debug code from previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128740
91177308-0d34-0410-b5e6-
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Owen Anderson [Fri, 1 Apr 2011 21:07:39 +0000 (21:07 +0000)]
When the architecture is explicitly armv6 or thumbv6, we need to mark the object file appropriately.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128739
91177308-0d34-0410-b5e6-
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Jim Grosbach [Fri, 1 Apr 2011 20:26:57 +0000 (20:26 +0000)]
LDRD/STRD instructions should print both Rt and Rt2 in the asm string.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128736
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Fri, 1 Apr 2011 20:23:52 +0000 (20:23 +0000)]
tlbgen/MC: StringRef's to temporary objects considered harmful.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128735
91177308-0d34-0410-b5e6-
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Johnny Chen [Fri, 1 Apr 2011 20:21:38 +0000 (20:21 +0000)]
Fix a LDRT/LDRBT decoding bug where for Encoding A2, if Inst{4} != 0, we should reject the instruction
as invalid.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128734
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Fri, 1 Apr 2011 20:15:16 +0000 (20:15 +0000)]
Fix build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128733
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Fri, 1 Apr 2011 20:09:10 +0000 (20:09 +0000)]
InstCombine: Turn icmp + sext into bitwise/integer ops when the input has only one unknown bit.
int test1(unsigned x) { return (x&8) ? 0 : -1; }
int test3(unsigned x) { return (x&8) ? -1 : 0; }
before (x86_64):
_test1:
andl $8, %edi
cmpl $1, %edi
sbbl %eax, %eax
ret
_test3:
andl $8, %edi
cmpl $1, %edi
sbbl %eax, %eax
notl %eax
ret
after:
_test1:
shrl $3, %edi
andl $1, %edi
leal -1(%rdi), %eax
ret
_test3:
shll $28, %edi
movl %edi, %eax
sarl $31, %eax
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128732
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Fri, 1 Apr 2011 20:09:03 +0000 (20:09 +0000)]
InstCombine: Move (sext icmp) transforms into their own method. No intended functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128731
91177308-0d34-0410-b5e6-
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Evan Cheng [Fri, 1 Apr 2011 19:57:01 +0000 (19:57 +0000)]
Add comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128730
91177308-0d34-0410-b5e6-
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Evan Cheng [Fri, 1 Apr 2011 19:42:22 +0000 (19:42 +0000)]
Assign node order numbers to results of call instruction lowering. This should improve src line debug info when sdisel is used. rdar://
9199118
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128728
91177308-0d34-0410-b5e6-
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Oscar Fuentes [Fri, 1 Apr 2011 19:36:06 +0000 (19:36 +0000)]
Fix assignment of -fPIC to CMAKE_C_FLAGS. Configure llvm-config.in.in
with the contents of CMAKE_C(XX)_FLAGS too, else `llvm-config
--c(xx)flags' doesn't tell the absolute truth.
This comes from PR9603 and is based on a patch by Ryuta Suzuki!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128727
91177308-0d34-0410-b5e6-
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Akira Hatanaka [Fri, 1 Apr 2011 18:57:38 +0000 (18:57 +0000)]
Modifies MipsAsmPrinter::isBlockOnlyReachableByFallthrough so that it handles delay slots correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128724
91177308-0d34-0410-b5e6-
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Johnny Chen [Fri, 1 Apr 2011 18:26:38 +0000 (18:26 +0000)]
Fix LDRi12 immediate operand, which was changed to be the second operand in $addrmode_imm12 => (ops GPR:$base, i32imm:$offsimm).
rdar://problem/
9219356
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128722
91177308-0d34-0410-b5e6-
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Devang Patel [Fri, 1 Apr 2011 18:03:58 +0000 (18:03 +0000)]
Update CMakeLists.txt
Patch by arrowdoger.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128719
91177308-0d34-0410-b5e6-
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Akira Hatanaka [Fri, 1 Apr 2011 17:39:08 +0000 (17:39 +0000)]
Add code for analyzing FP branches. Clean up branch Analysis functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128718
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Fri, 1 Apr 2011 09:20:31 +0000 (09:20 +0000)]
Initialize HasVMLxForwarding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128709
91177308-0d34-0410-b5e6-
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Jay Foad [Fri, 1 Apr 2011 08:00:58 +0000 (08:00 +0000)]
Various Instructions' resizeOperands() methods are only used to grow the
list of operands. Simplify and rename them accordingly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128708
91177308-0d34-0410-b5e6-
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Evan Cheng [Fri, 1 Apr 2011 06:27:25 +0000 (06:27 +0000)]
Add test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128707
91177308-0d34-0410-b5e6-
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Evan Cheng [Fri, 1 Apr 2011 03:36:33 +0000 (03:36 +0000)]
FileCheck'ify test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128706
91177308-0d34-0410-b5e6-
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Duncan Sands [Fri, 1 Apr 2011 03:34:54 +0000 (03:34 +0000)]
While testing dragonegg I noticed that isCastable and getCastOpcode
had gotten out of sync: isCastable didn't think it was possible to
cast the x86_mmx type to anything, while it did think it possible
to cast an i64 to x86_mmx.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128705
91177308-0d34-0410-b5e6-
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Andrew Trick [Fri, 1 Apr 2011 02:22:47 +0000 (02:22 +0000)]
Add annotations to tablegen-generated processor itineraries, or replace them with something meaningful. I want to be able to read and debug the generated tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128703
91177308-0d34-0410-b5e6-
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Andrew Trick [Fri, 1 Apr 2011 01:56:55 +0000 (01:56 +0000)]
whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128701
91177308-0d34-0410-b5e6-
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Evan Cheng [Fri, 1 Apr 2011 00:42:02 +0000 (00:42 +0000)]
Issue libcalls __udivmod*i4 / __divmod*i4 for div / rem pairs.
rdar://
8911343
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128696
91177308-0d34-0410-b5e6-
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Matt Beaumont-Gay [Fri, 1 Apr 2011 00:06:01 +0000 (00:06 +0000)]
Remove unused variables
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128692
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Thu, 31 Mar 2011 23:31:50 +0000 (23:31 +0000)]
Fix Thumb and Thumb2 tests to be register allocator independent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128690
91177308-0d34-0410-b5e6-
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Bruno Cardoso Lopes [Thu, 31 Mar 2011 23:26:08 +0000 (23:26 +0000)]
Apply again changes to support ARM memory asm parsing. I removed
all LDR/STR changes and left them to a future patch. Passing all
checks now.
- Implement asm parsing support for LDRT, LDRBT, STRT, STRBT and
fix the encoding wherever is possible.
- Add a new encoding bit to describe the index mode used and teach
printAddrMode2Operand to check by the addressing mode which index
mode to print.
- Testcases
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128689
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Thu, 31 Mar 2011 23:02:17 +0000 (23:02 +0000)]
The basic register allocator must also use the inline spiller.
It is using a trivial rewriter that doesn't know how to insert spill code
requested by the standard spiller.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128688
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Thu, 31 Mar 2011 23:02:15 +0000 (23:02 +0000)]
Provide a legal pointer register class when targeting thumb1.
The LocalStackSlotAllocation pass was creating illegal registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128687
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Thu, 31 Mar 2011 23:02:12 +0000 (23:02 +0000)]
Fix SystemZ tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128686
91177308-0d34-0410-b5e6-
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Nadav Rotem [Thu, 31 Mar 2011 22:57:29 +0000 (22:57 +0000)]
Instcombile optimization: extractelement(cast) -> cast(extractelement)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128683
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Thu, 31 Mar 2011 22:14:03 +0000 (22:14 +0000)]
Fix ARM tests to be register allocator independent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128680
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Thu, 31 Mar 2011 21:35:49 +0000 (21:35 +0000)]
InstCombine: APFloat can't perform arithmetic on PPC double doubles, don't even try.
Thanks Eli!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128676
91177308-0d34-0410-b5e6-
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Johnny Chen [Thu, 31 Mar 2011 20:54:30 +0000 (20:54 +0000)]
Add a test case for a malformed LDC/LDC2 instructions with PUDW = 0b0000, which
amounts to an UNDEFINED instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128668
91177308-0d34-0410-b5e6-
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Evan Cheng [Thu, 31 Mar 2011 19:38:48 +0000 (19:38 +0000)]
Distribute (A + B) * C to (A * C) + (B * C) to make use of NEON multiplier
accumulator forwarding:
vadd d3, d0, d1
vmul d3, d3, d2
=>
vmul d3, d0, d2
vmla d3, d1, d2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128665
91177308-0d34-0410-b5e6-
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Johnny Chen [Thu, 31 Mar 2011 19:28:35 +0000 (19:28 +0000)]
Fix single word and unsigned byte data transfer instruction encodings so that
Inst{4} = 0.
rdar://problem/
9213022
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128662
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Thu, 31 Mar 2011 18:42:43 +0000 (18:42 +0000)]
Fix Mips, Sparc, and XCore tests that were dependent on register allocation.
Add an extra run with -regalloc=basic to keep them honest.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128654
91177308-0d34-0410-b5e6-
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Akira Hatanaka [Thu, 31 Mar 2011 18:26:17 +0000 (18:26 +0000)]
Added support for FP conditional move instructions and fixed bugs in handling of FP comparisons.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128650
91177308-0d34-0410-b5e6-
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Nick Lewycky [Thu, 31 Mar 2011 18:20:19 +0000 (18:20 +0000)]
Pick better examples. "fpext float 3.1415 to double" won't parse because 3.1415
isn't an exact float. Also "fpext float 1.0 to float" is invalid IR because
it's not performing an extension.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128647
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Thu, 31 Mar 2011 17:55:25 +0000 (17:55 +0000)]
Don't completely eliminate identity copies that also modify super register liveness.
Turn them into noop KILL instructions instead. This lets the scavenger know when
super-registers are killed and defined.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128645
91177308-0d34-0410-b5e6-
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Johnny Chen [Thu, 31 Mar 2011 17:53:50 +0000 (17:53 +0000)]
Add BLXi to the instruction table for disassembly purpose.
A8.6.23 BLX (immediate)
rdar://problem/
9212921
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128644
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Thu, 31 Mar 2011 17:52:41 +0000 (17:52 +0000)]
Allow kill flags on two-address instructions. They are harmless.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128643
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Thu, 31 Mar 2011 17:23:25 +0000 (17:23 +0000)]
Mark all uses as <undef> when joining a copy.
This way, shrinkToUses() will ignore the instruction that is about to be
deleted, and we avoid leaving invalid live ranges that SplitKit doesn't like.
Fix a misunderstanding in MachineVerifier about <def,undef> operands. The
<undef> flag is valid on def operands where it has the same meaning as <undef>
on a use operand. It only applies to sub-register defines which also read the
full register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128642
91177308-0d34-0410-b5e6-
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Daniel Dunbar [Thu, 31 Mar 2011 17:01:56 +0000 (17:01 +0000)]
Remove stray empty test file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128640
91177308-0d34-0410-b5e6-
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Devang Patel [Thu, 31 Mar 2011 16:53:49 +0000 (16:53 +0000)]
Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128639
91177308-0d34-0410-b5e6-
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Bruno Cardoso Lopes [Thu, 31 Mar 2011 15:54:36 +0000 (15:54 +0000)]
Revert r128632 again, until I figure out what break the tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128635
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Thu, 31 Mar 2011 15:14:11 +0000 (15:14 +0000)]
Fix bug found by valgrind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128634
91177308-0d34-0410-b5e6-
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Richard Osborne [Thu, 31 Mar 2011 15:13:13 +0000 (15:13 +0000)]
Add XCore intrinsics for initializing / starting / synchronizing threads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128633
91177308-0d34-0410-b5e6-
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Bruno Cardoso Lopes [Thu, 31 Mar 2011 14:52:28 +0000 (14:52 +0000)]
Reapply r128585 without generating a lib depedency cycle. An updated log:
- Implement asm parsing support for LDRT, LDRBT, STRT, STRBT and
{STR,LDC}{2}_{PRE,POST} fixing the encoding wherever is possible.
- Move all instructions which use am2offset without a pattern to use
addrmode2.
- Add a new encoding bit to describe the index mode used and teach
printAddrMode2Operand to check by the addressing mode which index
mode to print.
- Testcases
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128632
91177308-0d34-0410-b5e6-
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Michael J. Spencer [Thu, 31 Mar 2011 13:06:39 +0000 (13:06 +0000)]
Fix whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128631
91177308-0d34-0410-b5e6-
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Michael J. Spencer [Thu, 31 Mar 2011 13:04:19 +0000 (13:04 +0000)]
Switch FileRemover from PathV1 to V2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128630
91177308-0d34-0410-b5e6-
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NAKAMURA Takumi [Thu, 31 Mar 2011 12:11:33 +0000 (12:11 +0000)]
lib/CodeGen/LiveIntervalAnalysis.cpp: [PR9590] Don't use std::pow(float,float) here.
We don't expect the real "powf()" on some hosts (and powf() would be available on other hosts).
For consistency, std::pow(double,double) may be called instead.
Or, precision issue might attack us, to see unstable regalloc and stack coloring.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128629
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Thu, 31 Mar 2011 10:46:03 +0000 (10:46 +0000)]
InstCombine: Fix transform to use the swapped predicate.
Thanks Frits!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128628
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Thu, 31 Mar 2011 10:12:22 +0000 (10:12 +0000)]
InstCombine: fold fcmp (fneg x), (fneg y) -> fcmp x, y
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128627
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Thu, 31 Mar 2011 10:12:15 +0000 (10:12 +0000)]
InstCombine: fold fcmp pred (fneg x), C -> fcmp swap(pred) x, -C
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128626
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Thu, 31 Mar 2011 10:12:07 +0000 (10:12 +0000)]
InstCombine: Shrink "fcmp (fpext x), C" to "fcmp x, C" if C can be losslessly converted to the type of x.
Fixes PR9592.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128625
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Thu, 31 Mar 2011 10:11:58 +0000 (10:11 +0000)]
InstCombine: fold fcmp (fpext x), (fpext y) -> fcmp x, y.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128624
91177308-0d34-0410-b5e6-
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Duncan Sands [Thu, 31 Mar 2011 10:03:32 +0000 (10:03 +0000)]
Will not compile without the spec!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128623
91177308-0d34-0410-b5e6-
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Duncan Sands [Thu, 31 Mar 2011 09:58:51 +0000 (09:58 +0000)]
Strip trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128622
91177308-0d34-0410-b5e6-
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Bill Wendling [Thu, 31 Mar 2011 08:13:57 +0000 (08:13 +0000)]
Testcase for r128619 (PR9571).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128620
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Thu, 31 Mar 2011 03:54:44 +0000 (03:54 +0000)]
Pick a conservative register class when creating a small live range for remat.
The rematerialized instruction may require a more constrained register class
than the register being spilled. In the test case, the spilled register has been
inflated to the DPR register class, but we are rematerializing a load of the
ssub_0 sub-register which only exists for DPR_VFP2 registers.
The register class is reinflated after spilling, so the conservative choice is
only temporary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128610
91177308-0d34-0410-b5e6-
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Matt Beaumont-Gay [Thu, 31 Mar 2011 00:39:16 +0000 (00:39 +0000)]
Revert "- Implement asm parsing support for LDRT, LDRBT, STRT, STRBT and"
This revision introduced a dependency cycle, as nlewycky mentioned by email.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128597
91177308-0d34-0410-b5e6-
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Nick Lewycky [Thu, 31 Mar 2011 00:23:57 +0000 (00:23 +0000)]
Fix typo in generated HTML.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128594
91177308-0d34-0410-b5e6-
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Bob Wilson [Thu, 31 Mar 2011 00:09:35 +0000 (00:09 +0000)]
Use intrinsics for Neon vmull operations. Radar
9208957.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128591
91177308-0d34-0410-b5e6-
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Owen Anderson [Wed, 30 Mar 2011 23:45:29 +0000 (23:45 +0000)]
Somehow we managed to forget to encode the lane index for a large swathe of NEON instructions. With this fix, the entire test-suite passes with the Thumb integrated assembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128587
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Evan Cheng [Wed, 30 Mar 2011 23:44:13 +0000 (23:44 +0000)]
Don't try to create zero-sized stack objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128586
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Bruno Cardoso Lopes [Wed, 30 Mar 2011 23:32:32 +0000 (23:32 +0000)]
- Implement asm parsing support for LDRT, LDRBT, STRT, STRBT and
{STR,LDC}{2}_PRE.
- Fixed the encoding in some places.
- Some of those instructions were using am2offset and now use addrmode2.
Codegen isn't affected, instructions which use SelectAddrMode2Offset were not
touched.
- Teach printAddrMode2Operand to check by the addressing mode which index
mode to print.
- This is a work in progress, more work to come. The idea is to change places
which use am2offset to use addrmode2 instead, as to unify assembly parser.
- Add testcases for assembly parser
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128585
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Cameron Zwarich [Wed, 30 Mar 2011 23:01:21 +0000 (23:01 +0000)]
Add a ARM-specific SD node for VBSL so that forms with a constant first operand
can be recognized. This fixes <rdar://problem/
9183078>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128584
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Jim Grosbach [Wed, 30 Mar 2011 22:38:13 +0000 (22:38 +0000)]
Tidy up. Whitespace and 80-columns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128583
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Bill Wendling [Wed, 30 Mar 2011 21:37:19 +0000 (21:37 +0000)]
* The DSE code that tested for overlapping needed to take into account the fact
that one of the numbers is signed while the other is unsigned. This could lead
to a wrong result when the signed was promoted to an unsigned int.
* Add the data layout line to the testcase so that it will test the appropriate
thing.
Patch by David Terei!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128577
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Akira Hatanaka [Wed, 30 Mar 2011 21:15:35 +0000 (21:15 +0000)]
fixed typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128574
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Jakob Stoklund Olesen [Wed, 30 Mar 2011 18:32:53 +0000 (18:32 +0000)]
Don't add the same analysis implementation pair twice.
Prevent infinite growth of the list.
Patch by José Fonseca!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128568
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Jakob Stoklund Olesen [Wed, 30 Mar 2011 18:32:51 +0000 (18:32 +0000)]
Reset StringMap's NumTombstones on clears and rehashes.
StringMap was not properly updating NumTombstones after a clear or rehash.
This was not fatal until now because the table was growing faster than
NumTombstones could, but with the previous change of preventing infinite
growth of the table the invariant (NumItems + NumTombstones <= NumBuckets)
stopped being observed, causing infinite loops in certain situations.
Patch by José Fonseca!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128567
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Jakob Stoklund Olesen [Wed, 30 Mar 2011 18:32:48 +0000 (18:32 +0000)]
Prevent infinite growth of SmallPtrSet instances.
Rehash but don't grow when full of tombstones.
Patch by José Fonseca!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128566
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Jakob Stoklund Olesen [Wed, 30 Mar 2011 18:32:44 +0000 (18:32 +0000)]
Prevent infinite growth of SmallMap instances.
Rehash but don't grow when full of tombstones.
Patch by José Fonseca!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128565
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Jakob Stoklund Olesen [Wed, 30 Mar 2011 18:32:41 +0000 (18:32 +0000)]
Prevent infinite growth of the DenseMap.
When the hash function uses object pointers all free entries eventually
become tombstones as they are used at least once, regardless of the size.
DenseMap cannot function with zero empty keys, so it double size to get
get ridof the tombstones.
However DenseMap never shrinks automatically unless it is cleared, so
the net result is that certain tables grow infinitely.
The solution is to make a fresh copy of the table without tombstones
instead of doubling size, by simply calling grow with the current size.
Patch by José Fonseca!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128564
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Jakob Stoklund Olesen [Wed, 30 Mar 2011 18:14:07 +0000 (18:14 +0000)]
Fix evil VirtRegRewriter bug.
The rewriter can keep track of multiple stack slots in the same register if they
happen to have the same value. When an instruction modifies a stack slot by
defining a register that is mapped to a stack slot, other stack slots in that
register are no longer valid.
This is a very rare problem, and I don't have a simple test case. I get the
impression that VirtRegRewriter knows it is about to be deleted, inventing a
last opaque problem.
<rdar://problem/
9204040>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128562
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Jakob Stoklund Olesen [Wed, 30 Mar 2011 18:14:04 +0000 (18:14 +0000)]
Teach VirtRegRewriter about the new virtual register numbers. No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128561
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Benjamin Kramer [Wed, 30 Mar 2011 17:02:54 +0000 (17:02 +0000)]
Avoid turning a floating point division with a constant power of two into a denormal multiplication.
Some platforms may treat denormals as zero, on other platforms multiplication
with a subnormal is slower than dividing by a normal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128555
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Benjamin Kramer [Wed, 30 Mar 2011 15:42:35 +0000 (15:42 +0000)]
InstCombine: If the divisor of an fdiv has an exact inverse, turn it into an fmul.
Fixes PR9587.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128546
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Benjamin Kramer [Wed, 30 Mar 2011 15:42:27 +0000 (15:42 +0000)]
Add APFloat::getExactInverse.
The idea is, that if an ieee 754 float is divided by a power of two, we can
turn the division into a cheaper multiplication. This function sees if we can
get an exact multiplicative inverse for a divisor and returns it if possible.
This is the hard part of PR9587.
I tested many inputs against llvm-gcc's frotend implementation of this
optimization and didn't find any difference. However, floating point is the
land of weird edge cases, so any review would be appreciated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128545
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Jay Foad [Wed, 30 Mar 2011 15:31:02 +0000 (15:31 +0000)]
Fix more zero length memset warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128543
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Jay Foad [Wed, 30 Mar 2011 13:29:06 +0000 (13:29 +0000)]
Add a comment on PHINode::Create().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128540
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Jay Foad [Wed, 30 Mar 2011 11:28:46 +0000 (11:28 +0000)]
Remove PHINode::reserveOperandSpace(). Instead, add a parameter to
PHINode::Create() giving the (known or expected) number of operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128537
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Jay Foad [Wed, 30 Mar 2011 11:19:20 +0000 (11:19 +0000)]
(Almost) always call reserveOperandSpace() on newly created PHINodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128535
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Bob Wilson [Wed, 30 Mar 2011 05:26:51 +0000 (05:26 +0000)]
Revert a minor comment change inadvertently included with r128502.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128526
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Jakob Stoklund Olesen [Wed, 30 Mar 2011 02:52:39 +0000 (02:52 +0000)]
Treat clones the same as their origin.
When DCE clones a live range because it separates into connected components,
make sure that the clones enter the same register allocator stage as the
register they were cloned from.
For instance, clones may be split even when they where created during spilling.
Other registers created during spilling are not candidates for splitting or even
(re-)spilling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128524
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Bill Wendling [Wed, 30 Mar 2011 01:03:48 +0000 (01:03 +0000)]
Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128519
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Johnny Chen [Wed, 30 Mar 2011 01:02:06 +0000 (01:02 +0000)]
Add a test case for thumb stc2 instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128517
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Argyrios Kyrtzidis [Wed, 30 Mar 2011 00:22:00 +0000 (00:22 +0000)]
ClangSAEmClangSACheckersEmitter, emit info about groups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128515
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Bill Wendling [Tue, 29 Mar 2011 23:31:06 +0000 (23:31 +0000)]
Set the unnamed_addr only when we're creating a new GV in the dest module.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128507
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Bill Wendling [Tue, 29 Mar 2011 23:28:02 +0000 (23:28 +0000)]
Revert r128501. It caused test failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128506
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Jim Grosbach [Tue, 29 Mar 2011 23:20:22 +0000 (23:20 +0000)]
Tidy up. 80 columns and trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128504
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Francois Pichet [Tue, 29 Mar 2011 23:18:51 +0000 (23:18 +0000)]
Update CMake link dependency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128503
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Evan Cheng [Tue, 29 Mar 2011 23:06:19 +0000 (23:06 +0000)]
Add intrinsics @llvm.arm.neon.vmulls and @llvm.arm.neon.vmullu.* back. Frontends
was lowering them to sext / uxt + mul instructions. Unfortunately the
optimization passes may hoist the extensions out of the loop and separate them.
When that happens, the long multiplication instructions can be broken into
several scalar instructions, causing significant performance issue.
Note the vmla and vmls intrinsics are not added back. Frontend will codegen them
as intrinsics vmull* + add / sub. Also note the isel optimizations for catching
mul + sext / zext are not changed either.
First part of rdar://
8832507, rdar://
9203134
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128502
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Bill Wendling [Tue, 29 Mar 2011 23:05:41 +0000 (23:05 +0000)]
We need to copy over the unnamed_addr attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128501
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Matt Beaumont-Gay [Tue, 29 Mar 2011 22:42:41 +0000 (22:42 +0000)]
Revert accidental change to LLVMLibDeps.cmake
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128499
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