mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 20:23:11 +01:00
37 lines
1.2 KiB
LLVM
37 lines
1.2 KiB
LLVM
; RUN: opt < %s -instcombine -S | not grep fpext
|
|
@X = external global float
|
|
@Y = external global float
|
|
|
|
define void @test() nounwind {
|
|
entry:
|
|
%tmp = load float* @X, align 4 ; <float> [#uses=1]
|
|
%tmp1 = fpext float %tmp to double ; <double> [#uses=1]
|
|
%tmp3 = fadd double %tmp1, 0.000000e+00 ; <double> [#uses=1]
|
|
%tmp34 = fptrunc double %tmp3 to float ; <float> [#uses=1]
|
|
store float %tmp34, float* @X, align 4
|
|
ret void
|
|
}
|
|
|
|
define void @test3() nounwind {
|
|
entry:
|
|
%tmp = load float* @X, align 4 ; <float> [#uses=1]
|
|
%tmp1 = fpext float %tmp to double ; <double> [#uses=1]
|
|
%tmp2 = load float* @Y, align 4 ; <float> [#uses=1]
|
|
%tmp23 = fpext float %tmp2 to double ; <double> [#uses=1]
|
|
%tmp5 = fdiv double %tmp1, %tmp23 ; <double> [#uses=1]
|
|
%tmp56 = fptrunc double %tmp5 to float ; <float> [#uses=1]
|
|
store float %tmp56, float* @X, align 4
|
|
ret void
|
|
}
|
|
|
|
define void @test4() nounwind {
|
|
entry:
|
|
%tmp = load float* @X, align 4 ; <float> [#uses=1]
|
|
%tmp1 = fpext float %tmp to double ; <double> [#uses=1]
|
|
%tmp2 = fsub double -0.000000e+00, %tmp1 ; <double> [#uses=1]
|
|
%tmp34 = fptrunc double %tmp2 to float ; <float> [#uses=1]
|
|
store float %tmp34, float* @X, align 4
|
|
ret void
|
|
}
|
|
|