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0ff4eb684f
llvm/test/Transforms
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Sanjay Patel 0ff4eb684f Optimize square root squared (PR21126). 
When unsafe-fp-math is enabled, we can turn sqrt(X) * sqrt(X) into X.

This can happen in the real world when calculating x ** 3/2. This occurs
in test-suite/SingleSource/Benchmarks/BenchmarkGame/n-body.c.

Differential Revision: http://reviews.llvm.org/D5584



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218906 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-02 21:10:54 +00:00
..
ADCE [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
AddDiscriminators Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
AlignmentFromAssumptions [AlignmentFromAssumptions] Don't crash just because the target is 32-bit 2014-09-11 08:40:17 +00:00
ArgumentPromotion Don't promote byval pointer arguments when padding matters 2014-08-28 22:42:00 +00:00
AtomicExpand/ARM Use target-dependent emitLeading/TrailingFence instead of the target-independent insertLeading/TrailingFence (in AtomicExpandPass) 2014-09-03 21:01:03 +00:00
BBVectorize Reduce verbiage of lit.local.cfg files 2014-06-09 22:42:55 +00:00
BranchFolding Re-commit: Demote EmitRawText call in AsmPrinter::EmitInlineAsm() and remove hasRawTextSupport() call 2014-02-13 14:44:26 +00:00
CodeExtractor [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
CodeGenPrepare CodeGenPrep: fall back to MVT::Other if instruction's type isn't an EVT. 2014-07-29 10:20:22 +00:00
ConstantHoisting [ConstantHoisting][X86] Improve the cost model for small constants with large types (i64 and above). 2014-06-10 00:32:29 +00:00
ConstantMerge Remove the linker_private and linker_private_weak linkages. 2014-03-13 23:18:37 +00:00
ConstProp Fix a bug around truncating vector in const prop. 2014-08-21 02:12:35 +00:00
CorrelatedValuePropagation [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
DeadArgElim Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
DeadStoreElimination Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
DebugIR Use right pointer type in DebugIR 2013-09-27 22:26:25 +00:00
EarlyCSE [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
FunctionAttrs [optnone] Make the optnone attribute effective at suppressing function 2014-08-13 10:49:33 +00:00
GCOVProfiling Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
GlobalDCE Remove dangling initializers in GlobalDCE 2014-08-25 17:51:14 +00:00
GlobalOpt Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
GVN Relax the constraint more in MemoryDependencyAnalysis.cpp 2014-08-29 20:32:58 +00:00
IndVarSimplify [BUG][INDVAR] Fix for PR21014: wrong SCEV operands commuting for non-commutative instructions 2014-10-02 13:01:15 +00:00
Inline Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
InstCombine Optimize square root squared (PR21126). 2014-10-02 21:10:54 +00:00
InstMerge MergedLoadStoreMotion pass 2014-07-18 19:13:09 +00:00
InstSimplify InstSimplify: Don't allow (x srem y) urem y -> x srem y 2014-09-17 04:16:35 +00:00
Internalize Use "weak alias" instead of "alias weak" 2014-07-30 22:51:54 +00:00
IPConstantProp No need for those tests to go thru llvm-as and/or llvm-dis. 2014-05-27 22:03:28 +00:00
JumpThreading Make use of @llvm.assume from LazyValueInfo 2014-09-07 20:29:59 +00:00
LCSSA [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LICM Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
LoadCombine Add LoadCombine pass. 2014-05-29 01:55:07 +00:00
LoopDeletion [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LoopIdiom Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
LoopReroll Fix loop rerolling pass failure with non-consant loop lower bound 2014-01-03 17:20:01 +00:00
LoopRotate Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
LoopSimplify FileCheckize. NFC. 2014-09-12 17:55:16 +00:00
LoopStrengthReduce Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
LoopUnroll Use a loop to simplify the runtime unrolling prologue. 2014-09-29 11:15:00 +00:00
LoopUnswitch [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
LoopVectorize Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
LowerAtomic IR: add "cmpxchg weak" variant to support permitted failure. 2014-06-13 14:24:07 +00:00
LowerExpectIntrinsic Lower llvm.expect intrinsic correctly for i1 2014-02-02 22:43:55 +00:00
LowerInvoke Remove LowerInvoke's obsolete "-enable-correct-eh-support" option 2014-03-20 19:54:47 +00:00
LowerSwitch Added test for commit r212802 that was missing 2014-07-11 10:36:00 +00:00
Mem2Reg Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
MemCpyOpt Fix a really bad miscompile introduced in r216865 - the else-if logic 2014-09-01 10:09:18 +00:00
MergeFunc Fix crash when looking up the addrspace of GEPs with vector types 2014-09-02 18:47:54 +00:00
MetaRenamer Use "weak alias" instead of "alias weak" 2014-07-30 22:51:54 +00:00
ObjCARC Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
PartiallyInlineLibCalls PartiallyInlineLibCalls: Check sqrt result type before transforming it. 2014-08-01 23:21:21 +00:00
PhaseOrdering [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
PruneEH [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
Reassociate Reassociate x + -0.1234 * y into x - 0.1234 * y 2014-08-21 10:45:30 +00:00
Reg2Mem [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
SampleProfile Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
Scalarizer Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
ScalarRepl Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
SCCP SCCP: update for cmpxchg returning { iN, i1 } now. 2014-06-13 14:54:09 +00:00
SeparateConstOffsetFromGEP/NVPTX Partially revert r210444 due to performance regression 2014-07-16 23:25:00 +00:00
SimplifyCFG Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
Sink Sink: Don't sink static allocas from the entry block 2014-03-21 15:51:51 +00:00
SLPVectorizer Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
SROA SROA: Don't insert instructions before a PHI 2014-09-01 21:20:14 +00:00
StripSymbols Move the complex address expression out of DIVariable and into an extra 2014-10-01 18:55:02 +00:00
StructurizeCFG StructurizeCFG: Fix verification failure with some loops. 2013-11-22 19:24:39 +00:00
TailCallElim We may visit a call that uses an alloca multiple times in callUsesLocalStack, sometimes with IsNocapture true and sometimes with IsNocapture false. We accidentally skipped work we needed to do in the IsNocapture=false case if we were called with IsNocapture=true the first time. Fixes PR20405! 2014-07-23 06:24:49 +00:00
TailDup Reduce verbiage of lit.local.cfg files 2014-06-09 22:42:55 +00:00
Util utils: Fix segfault in flattencfg 2014-08-13 20:31:53 +00:00