diff options
Diffstat (limited to 'llvm/test/Transforms/InstSimplify/fast-math.ll')
| -rw-r--r-- | llvm/test/Transforms/InstSimplify/fast-math.ll | 48 |
1 files changed, 32 insertions, 16 deletions
diff --git a/llvm/test/Transforms/InstSimplify/fast-math.ll b/llvm/test/Transforms/InstSimplify/fast-math.ll index c129d19a4b1..018c9641692 100644 --- a/llvm/test/Transforms/InstSimplify/fast-math.ll +++ b/llvm/test/Transforms/InstSimplify/fast-math.ll @@ -226,47 +226,52 @@ define float @nofold_fadd_x_0(float %a) { ret float %no_zero } -; CHECK-LABEL: @fold_fadd_nsz_x_0( -; CHECK-NEXT: ret float %a define float @fold_fadd_nsz_x_0(float %a) { +; CHECK-LABEL: @fold_fadd_nsz_x_0( +; CHECK-NEXT: ret float [[A:%.*]] +; %add = fadd nsz float %a, 0.0 ret float %add } -; CHECK-LABEL: @fold_fadd_cannot_be_neg0_nsz_src_x_0 -; CHECK-NEXT: %nsz = fmul nsz float %a, %b -; CHECK-NEXT: ret float %nsz define float @fold_fadd_cannot_be_neg0_nsz_src_x_0(float %a, float %b) { +; CHECK-LABEL: @fold_fadd_cannot_be_neg0_nsz_src_x_0( +; CHECK-NEXT: [[NSZ:%.*]] = fmul nsz float [[A:%.*]], [[B:%.*]] +; CHECK-NEXT: ret float [[NSZ]] +; %nsz = fmul nsz float %a, %b %add = fadd float %nsz, 0.0 ret float %add } -; CHECK-LABEL: @fold_fadd_cannot_be_neg0_fabs_src_x_0( -; CHECK-NEXT: @llvm.fabs.f32 -; CHECK-NEXT: ret float %fabs define float @fold_fadd_cannot_be_neg0_fabs_src_x_0(float %a) { +; CHECK-LABEL: @fold_fadd_cannot_be_neg0_fabs_src_x_0( +; CHECK-NEXT: [[FABS:%.*]] = call float @llvm.fabs.f32(float [[A:%.*]]) +; CHECK-NEXT: ret float [[FABS]] +; %fabs = call float @llvm.fabs.f32(float %a) %add = fadd float %fabs, 0.0 ret float %add } -; CHECK-LABEL: @fold_fadd_cannot_be_neg0_sqrt_nsz_src_x_0( -; CHECK-NEXT: fmul -; CHECK-NEXT: call float @llvm.sqrt.f32 -; CHECK-NEXT: ret float %sqrt define float @fold_fadd_cannot_be_neg0_sqrt_nsz_src_x_0(float %a, float %b) { +; CHECK-LABEL: @fold_fadd_cannot_be_neg0_sqrt_nsz_src_x_0( +; CHECK-NEXT: [[NSZ:%.*]] = fmul nsz float [[A:%.*]], [[B:%.*]] +; CHECK-NEXT: [[SQRT:%.*]] = call float @llvm.sqrt.f32(float [[NSZ]]) +; CHECK-NEXT: ret float [[SQRT]] +; %nsz = fmul nsz float %a, %b %sqrt = call float @llvm.sqrt.f32(float %nsz) %add = fadd float %sqrt, 0.0 ret float %add } -; CHECK-LABEL: @fold_fadd_cannot_be_neg0_canonicalize_nsz_src_x_0( -; CHECK-NEXT: fmul nsz -; CHECK-NEXT: call float @llvm.canonicalize.f32( -; CHECK-NEXT: ret float %canon define float @fold_fadd_cannot_be_neg0_canonicalize_nsz_src_x_0(float %a, float %b) { +; CHECK-LABEL: @fold_fadd_cannot_be_neg0_canonicalize_nsz_src_x_0( +; CHECK-NEXT: [[NSZ:%.*]] = fmul nsz float [[A:%.*]], [[B:%.*]] +; CHECK-NEXT: [[CANON:%.*]] = call float @llvm.canonicalize.f32(float [[NSZ]]) +; CHECK-NEXT: ret float [[CANON]] +; %nsz = fmul nsz float %a, %b %canon = call float @llvm.canonicalize.f32(float %nsz) %add = fadd float %canon, 0.0 @@ -394,6 +399,17 @@ define float @fdiv_neg_swapped2(float %f) { ret float %div } +define <2 x float> @fdiv_neg_vec_undef_elt(<2 x float> %f) { +; CHECK-LABEL: @fdiv_neg_vec_undef_elt( +; CHECK-NEXT: [[NEG:%.*]] = fsub <2 x float> <float 0.000000e+00, float undef>, [[F:%.*]] +; CHECK-NEXT: [[DIV:%.*]] = fdiv nnan <2 x float> [[F]], [[NEG]] +; CHECK-NEXT: ret <2 x float> [[DIV]] +; + %neg = fsub <2 x float> <float 0.0, float undef>, %f + %div = fdiv nnan <2 x float> %f, %neg + ret <2 x float> %div +} + ; PR21126: http://llvm.org/bugs/show_bug.cgi?id=21126 ; With loose math, sqrt(X) * sqrt(X) is just X. |
