diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/select_arithmetic.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/select_arithmetic.ll | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/select_arithmetic.ll b/llvm/test/Transforms/InstCombine/select_arithmetic.ll new file mode 100644 index 00000000000..d33bbdd1d43 --- /dev/null +++ b/llvm/test/Transforms/InstCombine/select_arithmetic.ll @@ -0,0 +1,40 @@ +; RUN: opt < %s -instcombine -S | FileCheck %s + +target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" + +; Tests folding constants from two similar selects that feed a add +define float @test1(i1 zeroext %arg) #0 { + %tmp = select i1 %arg, float 5.000000e+00, float 6.000000e+00 + %tmp1 = select i1 %arg, float 1.000000e+00, float 9.000000e+00 + %tmp2 = fadd float %tmp, %tmp1 + ret float %tmp2 +; CHECK-LABEL: @test1( +; CHECK: %tmp2 = select i1 %arg, float 6.000000e+00, float 1.500000e+01 +; CHECK-NOT: fadd +; CHECK: ret float %tmp2 +} + +; Tests folding constants from two similar selects that feed a sub +define float @test2(i1 zeroext %arg) #0 { + %tmp = select i1 %arg, float 5.000000e+00, float 6.000000e+00 + %tmp1 = select i1 %arg, float 1.000000e+00, float 9.000000e+00 + %tmp2 = fsub float %tmp, %tmp1 + ret float %tmp2 +; CHECK-LABEL: @test2( +; CHECK: %tmp2 = select i1 %arg, float 4.000000e+00, float -3.000000e+00 +; CHECK-NOT: fsub +; CHECK: ret float %tmp2 +} + +; Tests folding constants from two similar selects that feed a mul +define float @test3(i1 zeroext %arg) #0 { + %tmp = select i1 %arg, float 5.000000e+00, float 6.000000e+00 + %tmp1 = select i1 %arg, float 1.000000e+00, float 9.000000e+00 + %tmp2 = fmul float %tmp, %tmp1 + ret float %tmp2 +; CHECK-LABEL: @test3( +; CHECK: %tmp2 = select i1 %arg, float 5.000000e+00, float 5.400000e+01 +; CHECK-NOT: fmul +; CHECK: ret float %tmp2 +} + |
