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140f4a315b
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Author SHA1 Message Date
Chris Lattner
140f4a315b first step to fixing PR8642: don't fold away empty basic blocks 
which have trapping constant exprs in them due to PHI nodes.
Eliminating them can cause the constant expr to be evalutated
on new paths if the input edges are critical.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122164 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 03:02:34 +00:00
Chris Lattner
78d0094e4c move this test into the ARM test so that it is only run when the arm backend 
is enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122163 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 02:58:14 +00:00
Rafael Espindola
f399d9d37b Move all folding to AttemptToFoldSymbolOffsetDifference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122160 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 02:15:04 +00:00
Michael J. Spencer
c3207d8b5a Support/PathV1: Clarify deprecation warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122159 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 22:23:24 +00:00
Michael J. Spencer
79e8625220 Fix whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122158 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 22:23:15 +00:00
Michael J. Spencer
7385509101 Support/PathV1: Deprecate get{Basename,Dirname,Suffix}. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122157 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 22:23:07 +00:00
Chris Lattner
a37029cd24 simplify this a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122156 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 20:22:49 +00:00
Anton Korobeynikov
c8bd78c16b Restore the behavior of frame lowering before my refactoring. 
It turns out that ppc backend has really weird interdependencies
over different hooks and all stuff is fragile wrt small changes.
This should fix PR8749


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 19:53:14 +00:00
Benjamin Kramer
edb7fe5630 Just rename the functions, relying on matching a instruction that has the same name as a symbol is way too fragile. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122154 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 14:23:57 +00:00
Benjamin Kramer
07265b81b3 Test more than just label names and make test work on non-x86 hosts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122153 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 14:07:28 +00:00
Eric Christopher
9390983b08 Header warning patrol. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122152 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 10:54:29 +00:00
Roman Divacky
7529b16410 Add support for lexing single quotes like 'c'. 
This fixed 8615.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122150 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 08:56:37 +00:00
Owen Anderson
fffa863536 Revert r122143 through r122140, which collectively broke the LLVMC tests on 
the buildbots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122149 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 07:37:18 +00:00
Rafael Espindola
3132780a2e Merge isAbsolute into IsSymbolRefDifferenceFullyResolved. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122148 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 06:27:54 +00:00
Rafael Espindola
1ec5bd31fe Remove the MCObjectFormat class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 05:37:28 +00:00
Rafael Espindola
54f08852f6 Add a test that shows that we produce no fixups when computing the difference 
of two symbols in the same fragment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122145 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 05:07:45 +00:00
Rafael Espindola
3f037ef2f5 Add a FIXME and explain a hack. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122144 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 04:19:20 +00:00
Michael J. Spencer
47e8ae6324 Support/PathV1: Clarify deprecation warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122143 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 04:13:54 +00:00
Michael J. Spencer
1d6e7d2e42 Fix whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122142 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 04:13:46 +00:00
Michael J. Spencer
b9c767cce5 Support/PathV1: Deprecate get{Basename,Dirname,Suffix}. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122141 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 04:13:36 +00:00
Rafael Espindola
f705a7ed27 Fix the note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122139 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 04:01:45 +00:00
Rafael Espindola
d076482ab7 Revert 122011, 122012, 122013, 122023 adding back an important optimization. 
I added a note, but suggestions on how to add a test are really welcome.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122138 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:57:21 +00:00
Jakob Stoklund Olesen
390482569c Apparently, operandices is not a word. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122135 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:28:32 +00:00
Rafael Espindola
bff66a86e6 Move some data to the TargetWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122134 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:27:34 +00:00
Jakob Stoklund Olesen
83d1ba5728 Teach the inline spiller to attempt folding a load instruction into its single 
use before rematerializing the load.

This allows us to produce:

    addps	LCPI0_1(%rip), %xmm2

Instead of:

    movaps	LCPI0_1(%rip), %xmm3
    addps	%xmm3, %xmm2

Saving a register and an instruction. The standard spiller already knows how to
do this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122133 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:04:14 +00:00
Jakob Stoklund Olesen
87c6d25c71 Tweak debug spew. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122132 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:04:11 +00:00
Bill Wendling
a68a4fdf37 r120333 changed the opcode for the Thumb1 stuff from ARM::tMOVr to 
ARM::tMOVgpr2gpr. But this check didn't change. As a result, we were getting
misaligned references to the jump table from an ADR instruction.

There is a test case, but unfortunately it's sensitive to random code changes.

<rdar://problem/8782223>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122131 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 02:13:59 +00:00
Bill Wendling
cd080249fc RemoveUnusedCPEntries can change things. Track it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122129 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:53:06 +00:00
Rafael Espindola
a5ff979c11 Test for push being relaxed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122124 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:16:59 +00:00
Jakob Stoklund Olesen
dfe3b6d2a9 Check that the register is live-in to the loop header before inserting copies in 
the loop predecessors.

The register can be live-out from a predecessor without being live-in to the
loop header if there is a critical edge from the predecessor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122123 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:06:19 +00:00
Nick Lewycky
bb1744ec15 Fix GCC warning: 
lib/CodeGen/RegAllocGreedy.cpp:311: error: unused variable 'PhysReg' [-Wunused-variable]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122122 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:05:55 +00:00
Rafael Espindola
1ee03a835e Relax push instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122121 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:01:34 +00:00
Nick Lewycky
90862eeb7d Make LazyValueInfo non-recursive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122120 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 01:00:40 +00:00
Bob Wilson
094dd80ecc Rearrange some Neon multiclasses. No functional changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122119 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:42:58 +00:00
Michael J. Spencer
b3127bb06a Support/PathV1: Deprecate getLast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122116 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:19:10 +00:00
Michael J. Spencer
57e9104318 CMake: Cleanup and document MSVC warning flags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122115 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:18:58 +00:00
Owen Anderson
a479b23256 Add support to CallbackVH to receive notification when a Value's use-list changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122114 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:07:15 +00:00
Jakob Stoklund Olesen
89cab93fe9 Pass a Banner argument to the machine code verifier both from 
createMachineVerifierPass and MachineFunction::verify.

The banner is printed before the machine code dump, just like the printer pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122113 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:06:56 +00:00
Bob Wilson
3deb45149a Fix result type of Neon floating-point comparisons against zero. 
The result vector elements are always integers.  Radar 8782191.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122112 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:04:33 +00:00
Bob Wilson
3a75b9bc8f Add some missing entries in ARMTargetLowering::getTargetNodeName. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122111 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 00:04:26 +00:00
Bill Wendling
2d0537cdd8 Whitespace fixes. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122110 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:27:41 +00:00
Jakob Stoklund Olesen
8d12140437 Avoid dereferencing end() in collectInterferingVRegs() when there is no 
interference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122108 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:16:38 +00:00
Jakob Stoklund Olesen
af24964251 Make the -verify-regalloc command line option available to base classes as 
RegAllocBase::VerifyEnabled.

Run the machine code verifier in a few interesting places during RegAllocGreedy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122107 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:16:35 +00:00
Jakob Stoklund Olesen
f428eb6c1b Enable loop splitting in RegAllocGreedy. 
The heuristics split around the largest loop where the current register may be
allocated without interference.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122106 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:16:32 +00:00
Nate Begeman
9a3dc55202 Add vector versions of some existing scalar transforms to aid codegen in matching psign & pblend operations to the IR produced by clang/gcc for their C idioms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122105 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:12:19 +00:00
Bill Wendling
976ef86689 During local stack slot allocation, the materializeFrameBaseRegister function 
may be called. If the entry block is empty, the insertion point iterator will be
the "end()" value. Calling ->getParent() on it (among others) causes problems.

Modify materializeFrameBaseRegister to take the machine basic block and insert
the frame base register at the beginning of that block. (It's very similar to
what the code does all ready. The only difference is that it will always insert
at the beginning of the entry block instead of after a previous materialization
of the frame base register. I doubt that that matters here.)

<rdar://problem/8782198>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122104 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:09:14 +00:00
Bob Wilson
d727343a40 Fix a DAGCombiner crash when folding binary vector operations with constant 
BUILD_VECTOR operands where the element type is not legal.  I had previously
changed this code to insert TRUNCATE operations, but that was just wrong.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122102 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:06:49 +00:00
Bob Wilson
4c6b3d35bb Combine several vector-related DAGCombiner tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122101 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:06:46 +00:00
Bob Wilson
9bb43e1675 Avoid report_fatal_error in ARM's PrintAsmOperand method. 
The standard error handling in AsmPrinter::EmitInlineAsm handles this much
better, so just use it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122100 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:06:42 +00:00
Bob Wilson
26156456dd Remove trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122099 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 23:06:32 +00:00