diff options
Diffstat (limited to 'test/CodeGen/X86/dagcombine_unsafe_math.ll')
-rw-r--r-- | test/CodeGen/X86/dagcombine_unsafe_math.ll | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/test/CodeGen/X86/dagcombine_unsafe_math.ll b/test/CodeGen/X86/dagcombine_unsafe_math.ll deleted file mode 100644 index 592cf1b..0000000 --- a/test/CodeGen/X86/dagcombine_unsafe_math.ll +++ /dev/null @@ -1,56 +0,0 @@ -; RUN: llc < %s -enable-unsafe-fp-math -mtriple=x86_64-apple-darwin -mcpu=corei7-avx | FileCheck %s - - -; rdar://13126763 -; Expression "x + x*x" was mistakenly transformed into "x * 3.0f". - -define float @test1(float %x) { - %t1 = fmul fast float %x, %x - %t2 = fadd fast float %t1, %x - ret float %t2 -; CHECK: test1 -; CHECK: vaddss -} - -; (x + x) + x => x * 3.0 -define float @test2(float %x) { - %t1 = fadd fast float %x, %x - %t2 = fadd fast float %t1, %x - ret float %t2 -; CHECK: .long 1077936128 -; CHECK: test2 -; CHECK: vmulss LCPI1_0(%rip), %xmm0, %xmm0 -} - -; x + (x + x) => x * 3.0 -define float @test3(float %x) { - %t1 = fadd fast float %x, %x - %t2 = fadd fast float %t1, %x - ret float %t2 -; CHECK: .long 1077936128 -; CHECK: test3 -; CHECK: vmulss LCPI2_0(%rip), %xmm0, %xmm0 -} - -; (y + x) + x != x * 3.0 -define float @test4(float %x, float %y) { - %t1 = fadd fast float %x, %y - %t2 = fadd fast float %t1, %x - ret float %t2 -; CHECK: test4 -; CHECK: vaddss -} - -; rdar://13445387 -; "x + x + x => 3.0 * x" should be disabled after legalization because -; Instruction-Selection dosen't know how to handle "3.0" -; -define float @test5() { - %mul.i.i151 = fmul <4 x float> zeroinitializer, zeroinitializer - %vecext.i8.i152 = extractelement <4 x float> %mul.i.i151, i32 1 - %vecext1.i9.i153 = extractelement <4 x float> %mul.i.i151, i32 0 - %add.i10.i154 = fadd float %vecext1.i9.i153, %vecext.i8.i152 - %vecext.i7.i155 = extractelement <4 x float> %mul.i.i151, i32 2 - %add.i.i156 = fadd float %vecext.i7.i155, %add.i10.i154 - ret float %add.i.i156 -} |