llvm/test/Transforms/InstCombine/fsub.ll
Bill Wendling 4eb66b8d0e Reduce fsub-fadd.ll and merge it into fsub-fsub.ll. Rename fsub-fsub.ll to
fsub.ll and FileCheckify it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93669 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-17 00:21:21 +00:00

24 lines
519 B
LLVM

; RUN: opt < %s -instcombine -S | FileCheck %s
; PR4374
define float @test1(float %a, float %b) nounwind {
%t1 = fsub float %a, %b
%t2 = fsub float -0.000000e+00, %t1
; CHECK: %t1 = fsub float %a, %b
; CHECK-NEXT: %t2 = fsub float -0.000000e+00, %t1
ret float %t2
}
; <rdar://problem/7530098>
define double @test2(double %x, double %y) nounwind {
%t1 = fadd double %x, %y
%t2 = fsub double %x, %t1
; CHECK: %t1 = fadd double %x, %y
; CHECK-NEXT: %t2 = fsub double %x, %t1
ret double %t2
}