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InstCombine: fold fcmp (fpext x), (fpext y) -> fcmp x, y.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128624 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2011-03-31 10:11:58 +00:00
parent 021cf96ffc
commit cd0274ca18
2 changed files with 18 additions and 0 deletions
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test/Transforms/InstCombine/fcmp.ll
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; RUN: opt -S -instcombine < %s | FileCheck %s
define i1 @test1(float %x, float %y) nounwind {
%ext1 = fpext float %x to double
%ext2 = fpext float %y to double
%cmp = fcmp ogt double %ext1, %ext2
ret i1 %cmp
; CHECK: @test1
; CHECK-NEXT: fcmp ogt float %x, %y
}