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4625bb8dfb
Analyze bit patterns of operands and values of instructions to perform various simplifications, dead/redundant code elimination, etc. llvm-svn: 250868
16 lines
441 B
LLVM
16 lines
441 B
LLVM
; RUN: llc -mtriple=hexagon-unknown-elf -mcpu=hexagonv5 -hexagon-bit=0 < %s | FileCheck %s
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; Optimize fabsf to clrbit in V5.
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; CHECK: r{{[0-9]+}} = clrbit(r{{[0-9]+}}, #31)
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define float @my_fabsf(float %x) nounwind {
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entry:
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%x.addr = alloca float, align 4
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store float %x, float* %x.addr, align 4
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%0 = load float, float* %x.addr, align 4
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%call = call float @fabsf(float %0) readnone
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ret float %call
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}
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declare float @fabsf(float)
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