diff options
Diffstat (limited to 'test/Transforms/InstCombine/fpextend.ll')
| -rw-r--r-- | test/Transforms/InstCombine/fpextend.ll | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/fpextend.ll b/test/Transforms/InstCombine/fpextend.ll new file mode 100644 index 000000000000..5971080cef5c --- /dev/null +++ b/test/Transforms/InstCombine/fpextend.ll @@ -0,0 +1,36 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | 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 = add 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 = sub 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 +} + |