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Imported Upstream version 5.18.0.167
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external/llvm/test/CodeGen/X86/neg_fp.ll
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external/llvm/test/CodeGen/X86/neg_fp.ll
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; RUN: llc < %s -mtriple=i686-- -mattr=+sse4.1 -o %t
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; RUN: grep xorps %t | count 1
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; Test that when we don't -enable-unsafe-fp-math, we don't do the optimization
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; -0 - (A - B) to (B - A) because A==B, -0 != 0
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define float @negfp(float %a, float %b) {
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entry:
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%sub = fsub float %a, %b ; <float> [#uses=1]
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%neg = fsub float -0.000000e+00, %sub ; <float> [#uses=1]
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ret float %neg
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}
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