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define i32 @test(float %f) { %tmp7 = insertelement <4 x float> undef, float %f, i32 0 %tmp17 = bitcast <4 x float> %tmp7 to <4 x i32> %tmp19 = extractelement <4 x i32> %tmp17, i32 0 ret i32 %tmp19 } into: define i32 @test(float %f) { %tmp19 = bitcast float %f to i32 ; <i32> [#uses=1] ret i32 %tmp19 } On PPC, this is the difference between: _test: mfspr r2, 256 oris r3, r2, 8192 mtspr 256, r3 stfs f1, -16(r1) addi r3, r1, -16 addi r4, r1, -32 lvx v2, 0, r3 stvx v2, 0, r4 lwz r3, -32(r1) mtspr 256, r2 blr and: _test: stfs f1, -4(r1) nop nop nop lwz r3, -4(r1) blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36025 91177308-0d34-0410-b5e6-96231b3b80d8 |
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.. | ||
ADCE.cpp | ||
BasicBlockPlacement.cpp | ||
CodeGenPrepare.cpp | ||
CondPropagate.cpp | ||
ConstantProp.cpp | ||
CorrelatedExprs.cpp | ||
DCE.cpp | ||
DeadStoreElimination.cpp | ||
GCSE.cpp | ||
IndVarSimplify.cpp | ||
InstructionCombining.cpp | ||
LICM.cpp | ||
LoopRotation.cpp | ||
LoopStrengthReduce.cpp | ||
LoopUnroll.cpp | ||
LoopUnswitch.cpp | ||
LowerGC.cpp | ||
LowerPacked.cpp | ||
Makefile | ||
PredicateSimplifier.cpp | ||
Reassociate.cpp | ||
Reg2Mem.cpp | ||
ScalarReplAggregates.cpp | ||
SCCP.cpp | ||
SimplifyCFG.cpp | ||
TailDuplication.cpp | ||
TailRecursionElimination.cpp |