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2012-12-03Simplify this test a bit because DWARF emission/dumping on some platformsEli Bendersky
is not yet good enough for more sophistication. The important goal of this test is to make sure llc doesn't crash on this IR like it used to. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169146 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Fix PR12942: Allow two CUs to be generated from the same source file.Eli Bendersky
Thanks Eric for the review. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169142 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-02Allow merging multiple store sequences on the same chain.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169111 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-02Fix a bug in FileCheck that wouldn't let define variables as follows:Eli Bendersky
; CHECK: [[VAR:[a-z]]] The problem was that to find the end of the regex var definition, it was simplistically looking for the next ]] and finding the incorrect one. A better approach is to count nesting of brackets (taking escaping into account). This way the brackets that are part of the regex can be discovered and skipped properly, and the ]] ending is detected in the right place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169109 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-02Fix an invalid regex in the testEli Bendersky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169108 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Support referencing variables defined on the same line.Eli Bendersky
See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20121126/157198.html and related discussions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169101 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01SROA: Avoid struct and array types early to avoid creating an overly large ↵Benjamin Kramer
integer type. Fixes PR14465. Differential Revision: http://llvm-reviews.chandlerc.com/D148 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169084 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Revert previous check in r168581, r169079 as they are still in code review ↵Zhou Sheng
status. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169083 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01The patch is to improve the memory footprint of pass GlobalOpt. Zhou Sheng
Also check in a case to repeat the issue, on which 'opt -globalopt' consumes 1.6GB memory. The big memory footprint cause is that current GlobalOpt one by one hoists and stores the leaf element constant into the global array, in each iteration, it recreates the global array initializer constant and leave the old initializer alone. This may result in many obsolete constants left. For example: we have global array @rom = global [16 x i32] zeroinitializer After the first element value is hoisted and installed: @rom = global [16 x i32] [ 1, 0, 0, ... ] After the second element value is installed: @rom = global [16 x 32] [ 1, 2, 0, 0, ... ] // here the previous initializer is obsolete ... When the transform is done, we have 15 obsolete initializers left useless. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169079 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01misched: Fix RegisterPressureTracker handling of DebugVals.Andrew Trick
Assertion failed: (TopRPTracker.getPos() == RegionBegin && "bad initial Top tracker"). rdar://12790302. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169072 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01misched: Fix the DAG builder to handle an undef operand at ExitSU.Andrew Trick
Assertion failed: (VNI && "No value to read by operand") rdar://12790267. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169071 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01misched: Fix LiveInterval update to better handle DebugVal.Andrew Trick
Assertion failed: (itr != mi2iMap.end() && "Instruction not found in maps.") rdar://12777252. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169070 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01misched: fix RegionBegin when DebugValues get shuffled to the top.Andrew Trick
assert (RemainingInstrs == 0 && "Instruction count mismatch!") rdar://12776937. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169069 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Simplify REG_SEQUENCE lowering.Jakob Stoklund Olesen
The TwoAddressInstructionPass takes the machine code out of SSA form by expanding REG_SEQUENCE instructions into copies. It is no longer necessary to rewrite the registers used by a REG_SEQUENCE instruction because the new coalescer algorithm can do it now. REG_SEQUENCE is just converted to a sequence of sub-register copies now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169067 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Add some first skeleton work for the DWARF5 Fission proposal. EmitEric Christopher
part of the compile unit CU and start separating out information into the various sections that will be pulled out later. WIP. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169061 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30test/CodeGen/PowerPC/vec_mul.ll: Add a triple. Thanks, Hal.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169026 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Codegen failure for vmull with small vectorsSebastian Pop
Codegen was failing with an assertion because of unexpected vector operands when legalizing the selection DAG for a MUL instruction. The asserting code was legalizing multiplies for vectors of size 128 bits. It uses a custom lowering to try and detect cases where it can use a VMULL instruction instead of a VMOVL + VMUL. The code was looking for input operands to the MUL that had been sign or zero extended. If it found the extended operands it would drop the sign/zero extension and use the original vector size as input to a VMULL instruction. The code assumed that the original input vector was 64 bits so that after dropping the extension it would fit directly into a D register and could be used as an operand of a VMULL instruction. The input code that trigger the failure used a vector of <4 x i8> that was sign extended to <4 x i32>. It was not safe to drop the sign extension in this case because the original vector is only 32 bits wide. The fix is to insert a sign extension for the vector to reach the required 64 bit size. In this particular example, the vector would need to be sign extented to a <4 x i16>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169024 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30test/CodeGen/PowerPC/vec_mul.ll: Fix register operands.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169020 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30test/CodeGen/PowerPC: Add explicit -march=ppc32.NAKAMURA Takumi
FIXME: Please add another RUN line if you would like to check also on ppc64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168999 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30This patch fixes the Altivec addend construction for the fused multiply-addAdhemerval Zanella
instruction (vmaddfp) to conform with IEEE to ensure the sign of a zero result when resulting product is -0.0. The -0.0 vector addend to vmaddfp is generated by a creating a vector with full bits sets and then shifting each elements by 31-bits to the left, resulting in a vector of 0x80000000 (or -0.0 as float). The 'buildvec_canonicalize.ll' was adjusted to reflect this change and the 'vec_mul.ll' was complemented with the float vector multiplication test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168998 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30[msan] Tests for vector manipulation instructions.Evgeniy Stepanov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168997 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Fix logic to determine whether to turn a switch into a lookup table. WhenEvan Cheng
the tables cannot fit in registers (i.e. bitmap), do not emit the table if it's using an illegal type. rdar://12779436 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168970 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Modified dump() to provide a littlePreston Briggs
more information for dependences between instructions that don't share a common loop. Updated the test results appropriately. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168965 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Fixed the arm disassembly of invalid BFI instructions to not build a bad MCInstKevin Enderby
which would then cause an assert when printed. rdar://11437956 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168960 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Add a FileCheck test that makes sure two different CHECKs won't match theEli Bendersky
same string git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168942 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29rdar://12100355 (part 1)Shuxin Yang
This revision attempts to recognize following population-count pattern: while(a) { c++; ... ; a &= a - 1; ... }, where <c> and <a>could be used multiple times in the loop body. TODO: On X8664 and ARM, __buildin_ctpop() are not expanded to a efficent instruction sequence, which need to be improved in the following commits. Reviewed by Nadav, really appreciate! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168931 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Handle the situation where CodeGenPrepare removes a reference to a BB that hasBill Wendling
the last invoke instruction in the function. This also removes the last landing pad in an function. This is fine, but with SjLj EH code, we've already placed a bunch of code in the 'entry' block, which expects the landing pad to stick around. When we get to the situation where CGP has removed the last landing pad, go ahead and nuke the SjLj instructions from the 'entry' block. <rdar://problem/12721258> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168930 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29instcombine: Migrate puts optimizationsMeador Inge
This patch migrates the puts optimizations from the simplify-libcalls pass into the instcombine library call simplifier. All the simplifiers from simplify-libcalls have now been migrated to instcombine. Yay! Just a few other bits to migrate (prototype attribute inference and a few statistics) and simplify-libcalls can finally be put to rest. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168925 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Follow up to 168711: It's safe to base this analysis on the found compare, ↵Benjamin Kramer
just return the value for the right predicate. Thanks to Andy for catching this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168921 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29fix a typoShuxin Yang
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168909 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29instcombine: Migrate fputs optimizationsMeador Inge
This patch migrates the fputs optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168893 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29instcombine: Migrate fwrite optimizationsMeador Inge
This patch migrates the fwrite optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168892 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29instcombine: Migrate fprintf optimizationsMeador Inge
This patch migrates the fprintf optimizations from the simplify-libcalls pass into the instcombine library call simplifier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168891 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Added atomic 64 min/max/umin/umax instrinsics support in the ARM backend.Silviu Baranga
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168886 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Teach the legalizer how to handle operands for VSELECT nodesJustin Holewinski
If we need to split the operand of a VSELECT, it must be the mask operand. We split the entire VSELECT operand with EXTRACT_SUBVECTOR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168883 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Allow targets to prefer TypeSplitVector over TypePromoteInteger when ↵Justin Holewinski
computing the legalization method for vectors For some targets, it is desirable to prefer scalarizing <N x i1> instead of promoting to a larger legal type, such as <N x i32>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168882 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29[msan] Propagate shadow through (x<0) and (x>=0) comparisons.Evgeniy Stepanov
This is a special case of signed relational comparison where result only depends on the sign of x. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168881 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29[msan] Fix shadow & origin store & load alignment.Evgeniy Stepanov
This change ensures that shadow memory accesses have the same alignment as corresponding app memory accesses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168880 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29[msan] Add a test for r168873.Evgeniy Stepanov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168877 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29[msan] Update tests (broken in r168873).Evgeniy Stepanov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168874 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Initial commit of MemorySanitizer.Evgeniy Stepanov
Compiler pass only. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168866 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29[asan] when checking the noreturn attribute on the call, also check it on ↵Kostya Serebryany
the callee git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168861 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Instruction::isAssociative() returns true for fmul/fadd if they are tagged ↵Shuxin Yang
"unsafe" mode. Approved by: Eli and Michael. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168848 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Avoid rewriting instructions twice.Jakob Stoklund Olesen
This could cause miscompilations in targets where sub-register composition is not always idempotent (ARM). <rdar://problem/12758887> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168837 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29When combining consecutive stores allow loads in between the stores, if the ↵Nadav Rotem
loads do not alias. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168832 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28ARM: Implement CanLowerReturn so large vectors get expanded into sret.Benjamin Kramer
Fixes 14337. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168809 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Fix initial frame state on powerpc64.Ulrich Weigand
The createPPCMCAsmInfo routine used PPC::R1 as the initial frame pointer register, but on PPC64 the 32-bit R1 register does not have a corresponding DWARF number, causing invalid CIE initial frame state to be emitted. Fix by using PPC::X1 instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168799 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Add error handling in getInt.Patrik Hägglund
Accordingly, update a testcase with a broken datalayout string. Also, we never parse negative numbers, because '-' is used as a separator. Therefore, use unsigned as result type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168785 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28[asan] Split AddressSanitizer into two passes (FunctionPass, ModulePass), ↵Kostya Serebryany
LLVM part. This requires a clang part which will follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168781 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28misched: Analysis that partitions the DAG into subtrees.Andrew Trick
This is a simple, cheap infrastructure for analyzing the shape of a DAG. It recognizes uniform DAGs that take the shape of bottom-up subtrees, such as the included matrix multiplication example. This is useful for heuristics that balance register pressure with ILP. Two canonical expressions of the heuristic are implemented in scheduling modes: -misched-ilpmin and -misched-ilpmax. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168773 91177308-0d34-0410-b5e6-96231b3b80d8
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