diff options
Diffstat (limited to 'llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-fdiv.ll')
| -rw-r--r-- | llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-fdiv.ll | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-fdiv.ll b/llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-fdiv.ll new file mode 100644 index 00000000000..d78c75165be --- /dev/null +++ b/llvm/test/CodeGen/AMDGPU/amdgpu-codegenprepare-fdiv.ll @@ -0,0 +1,246 @@ +; RUN: opt -S -mtriple=amdgcn-- -amdgpu-codegenprepare %s | FileCheck %s +; RUN: opt -S -amdgpu-codegenprepare %s | FileCheck -check-prefix=NOOP %s +; Make sure this doesn't crash with no triple + +; NOOP-LABEL: @noop_fdiv_fpmath( +; NOOP: %md.25ulp = fdiv float %a, %b, !fpmath !0 +define void @noop_fdiv_fpmath(float addrspace(1)* %out, float %a, float %b) #3 { + %md.25ulp = fdiv float %a, %b, !fpmath !0 + store volatile float %md.25ulp, float addrspace(1)* %out + ret void +} + +; CHECK-LABEL: @fdiv_fpmath( +; CHECK: %no.md = fdiv float %a, %b{{$}} +; CHECK: %md.half.ulp = fdiv float %a, %b, !fpmath !1 +; CHECK: %md.1ulp = fdiv float %a, %b, !fpmath !2 +; CHECK: %md.25ulp = call float @llvm.amdgcn.fdiv.fast(float %a, float %b), !fpmath !0 +; CHECK: %md.3ulp = call float @llvm.amdgcn.fdiv.fast(float %a, float %b), !fpmath !3 +; CHECK: %fast.md.25ulp = call fast float @llvm.amdgcn.fdiv.fast(float %a, float %b), !fpmath !0 +; CHECK: arcp.md.25ulp = call arcp float @llvm.amdgcn.fdiv.fast(float %a, float %b), !fpmath !0 +define void @fdiv_fpmath(float addrspace(1)* %out, float %a, float %b) #1 { + %no.md = fdiv float %a, %b + store volatile float %no.md, float addrspace(1)* %out + + %md.half.ulp = fdiv float %a, %b, !fpmath !1 + store volatile float %md.half.ulp, float addrspace(1)* %out + + %md.1ulp = fdiv float %a, %b, !fpmath !2 + store volatile float %md.1ulp, float addrspace(1)* %out + + %md.25ulp = fdiv float %a, %b, !fpmath !0 + store volatile float %md.25ulp, float addrspace(1)* %out + + %md.3ulp = fdiv float %a, %b, !fpmath !3 + store volatile float %md.3ulp, float addrspace(1)* %out + + %fast.md.25ulp = fdiv fast float %a, %b, !fpmath !0 + store volatile float %fast.md.25ulp, float addrspace(1)* %out + + %arcp.md.25ulp = fdiv arcp float %a, %b, !fpmath !0 + store volatile float %arcp.md.25ulp, float addrspace(1)* %out + + ret void +} + +; CHECK-LABEL: @rcp_fdiv_fpmath( +; CHECK: %no.md = fdiv float 1.000000e+00, %x{{$}} +; CHECK: %md.25ulp = fdiv float 1.000000e+00, %x, !fpmath !0 +; CHECK: %md.half.ulp = fdiv float 1.000000e+00, %x, !fpmath !1 +; CHECK: %arcp.no.md = fdiv arcp float 1.000000e+00, %x{{$}} +; CHECK: %arcp.25ulp = fdiv arcp float 1.000000e+00, %x, !fpmath !0 +; CHECK: %fast.no.md = fdiv fast float 1.000000e+00, %x{{$}} +; CHECK: %fast.25ulp = fdiv fast float 1.000000e+00, %x, !fpmath !0 +define void @rcp_fdiv_fpmath(float addrspace(1)* %out, float %x) #1 { + %no.md = fdiv float 1.0, %x + store volatile float %no.md, float addrspace(1)* %out + + %md.25ulp = fdiv float 1.0, %x, !fpmath !0 + store volatile float %md.25ulp, float addrspace(1)* %out + + %md.half.ulp = fdiv float 1.0, %x, !fpmath !1 + store volatile float %md.half.ulp, float addrspace(1)* %out + + %arcp.no.md = fdiv arcp float 1.0, %x + store volatile float %arcp.no.md, float addrspace(1)* %out + + %arcp.25ulp = fdiv arcp float 1.0, %x, !fpmath !0 + store volatile float %arcp.25ulp, float addrspace(1)* %out + + %fast.no.md = fdiv fast float 1.0, %x + store volatile float %fast.no.md, float addrspace(1)* %out + + %fast.25ulp = fdiv fast float 1.0, %x, !fpmath !0 + store volatile float %fast.25ulp, float addrspace(1)* %out + + ret void +} + +; CHECK-LABEL: @fdiv_fpmath_vector( +; CHECK: %no.md = fdiv <2 x float> %a, %b{{$}} +; CHECK: %md.half.ulp = fdiv <2 x float> %a, %b, !fpmath !1 +; CHECK: %md.1ulp = fdiv <2 x float> %a, %b, !fpmath !2 + +; CHECK: %[[A0:[0-9]+]] = extractelement <2 x float> %a, i64 0 +; CHECK: %[[B0:[0-9]+]] = extractelement <2 x float> %b, i64 0 +; CHECK: %[[FDIV0:[0-9]+]] = call float @llvm.amdgcn.fdiv.fast(float %[[A0]], float %[[B0]]), !fpmath !0 +; CHECK: %[[INS0:[0-9]+]] = insertelement <2 x float> undef, float %[[FDIV0]], i64 0 +; CHECK: %[[A1:[0-9]+]] = extractelement <2 x float> %a, i64 1 +; CHECK: %[[B1:[0-9]+]] = extractelement <2 x float> %b, i64 1 +; CHECK: %[[FDIV1:[0-9]+]] = call float @llvm.amdgcn.fdiv.fast(float %[[A1]], float %[[B1]]), !fpmath !0 +; CHECK: %md.25ulp = insertelement <2 x float> %[[INS0]], float %[[FDIV1]], i64 1 +define void @fdiv_fpmath_vector(<2 x float> addrspace(1)* %out, <2 x float> %a, <2 x float> %b) #1 { + %no.md = fdiv <2 x float> %a, %b + store volatile <2 x float> %no.md, <2 x float> addrspace(1)* %out + + %md.half.ulp = fdiv <2 x float> %a, %b, !fpmath !1 + store volatile <2 x float> %md.half.ulp, <2 x float> addrspace(1)* %out + + %md.1ulp = fdiv <2 x float> %a, %b, !fpmath !2 + store volatile <2 x float> %md.1ulp, <2 x float> addrspace(1)* %out + + %md.25ulp = fdiv <2 x float> %a, %b, !fpmath !0 + store volatile <2 x float> %md.25ulp, <2 x float> addrspace(1)* %out + + ret void +} + +; CHECK-LABEL: @rcp_fdiv_fpmath_vector( +; CHECK: %no.md = fdiv <2 x float> <float 1.000000e+00, float 1.000000e+00>, %x{{$}} +; CHECK: %md.half.ulp = fdiv <2 x float> <float 1.000000e+00, float 1.000000e+00>, %x, !fpmath !1 +; CHECK: %arcp.no.md = fdiv arcp <2 x float> <float 1.000000e+00, float 1.000000e+00>, %x{{$}} +; CHECK: %fast.no.md = fdiv fast <2 x float> <float 1.000000e+00, float 1.000000e+00>, %x{{$}} + +; CHECK: extractelement <2 x float> %x +; CHECK: fdiv arcp float 1.000000e+00, %{{[0-9]+}}, !fpmath !0 +; CHECK: extractelement <2 x float> %x +; CHECK: fdiv arcp float 1.000000e+00, %{{[0-9]+}}, !fpmath !0 +; CHECK: store volatile <2 x float> %arcp.25ulp + +; CHECK: fdiv fast float 1.000000e+00, %{{[0-9]+}}, !fpmath !0 +; CHECK: fdiv fast float 1.000000e+00, %{{[0-9]+}}, !fpmath !0 +; CHECK: store volatile <2 x float> %fast.25ulp, <2 x float> addrspace(1)* %out +define void @rcp_fdiv_fpmath_vector(<2 x float> addrspace(1)* %out, <2 x float> %x) #1 { + %no.md = fdiv <2 x float> <float 1.0, float 1.0>, %x + store volatile <2 x float> %no.md, <2 x float> addrspace(1)* %out + + %md.half.ulp = fdiv <2 x float> <float 1.0, float 1.0>, %x, !fpmath !1 + store volatile <2 x float> %md.half.ulp, <2 x float> addrspace(1)* %out + + %arcp.no.md = fdiv arcp <2 x float> <float 1.0, float 1.0>, %x + store volatile <2 x float> %arcp.no.md, <2 x float> addrspace(1)* %out + + %fast.no.md = fdiv fast <2 x float> <float 1.0, float 1.0>, %x + store volatile <2 x float> %fast.no.md, <2 x float> addrspace(1)* %out + + %arcp.25ulp = fdiv arcp <2 x float> <float 1.0, float 1.0>, %x, !fpmath !0 + store volatile <2 x float> %arcp.25ulp, <2 x float> addrspace(1)* %out + + %fast.25ulp = fdiv fast <2 x float> <float 1.0, float 1.0>, %x, !fpmath !0 + store volatile <2 x float> %fast.25ulp, <2 x float> addrspace(1)* %out + + ret void +} + +; CHECK-LABEL: @rcp_fdiv_fpmath_vector_nonsplat( +; CHECK: %no.md = fdiv <2 x float> <float 1.000000e+00, float 2.000000e+00>, %x +; CHECK: %arcp.no.md = fdiv arcp <2 x float> <float 1.000000e+00, float 2.000000e+00>, %x +; CHECK: %fast.no.md = fdiv fast <2 x float> <float 1.000000e+00, float 2.000000e+00>, %x{{$}} + +; CHECK: %[[X0:[0-9]+]] = extractelement <2 x float> %x, i64 0 +; CHECK: fdiv arcp float 1.000000e+00, %[[X0]], !fpmath !0 +; CHECK: %[[X1:[0-9]+]] = extractelement <2 x float> %x, i64 1 +; CHECK: fdiv arcp float 2.000000e+00, %[[X1]], !fpmath !0 +; CHECK: store volatile <2 x float> %arcp.25ulp + +; CHECK: %[[X0:[0-9]+]] = extractelement <2 x float> %x, i64 0 +; CHECK: fdiv fast float 1.000000e+00, %[[X0]], !fpmath !0 +; CHECK: %[[X1:[0-9]+]] = extractelement <2 x float> %x, i64 1 +; CHECK: fdiv fast float 2.000000e+00, %[[X1]], !fpmath !0 +; CHECK: store volatile <2 x float> %fast.25ulp +define void @rcp_fdiv_fpmath_vector_nonsplat(<2 x float> addrspace(1)* %out, <2 x float> %x) #1 { + %no.md = fdiv <2 x float> <float 1.0, float 2.0>, %x + store volatile <2 x float> %no.md, <2 x float> addrspace(1)* %out + + %arcp.no.md = fdiv arcp <2 x float> <float 1.0, float 2.0>, %x + store volatile <2 x float> %arcp.no.md, <2 x float> addrspace(1)* %out + + %fast.no.md = fdiv fast <2 x float> <float 1.0, float 2.0>, %x + store volatile <2 x float> %fast.no.md, <2 x float> addrspace(1)* %out + + %arcp.25ulp = fdiv arcp <2 x float> <float 1.0, float 2.0>, %x, !fpmath !0 + store volatile <2 x float> %arcp.25ulp, <2 x float> addrspace(1)* %out + + %fast.25ulp = fdiv fast <2 x float> <float 1.0, float 2.0>, %x, !fpmath !0 + store volatile <2 x float> %fast.25ulp, <2 x float> addrspace(1)* %out + + ret void +} + +; FIXME: Should be able to get fdiv for 1.0 component +; CHECK-LABEL: @rcp_fdiv_fpmath_vector_partial_constant( +; CHECK: call arcp float @llvm.amdgcn.fdiv.fast(float %{{[0-9]+}}, float %{{[0-9]+}}), !fpmath !0 +; CHECK: call arcp float @llvm.amdgcn.fdiv.fast(float %{{[0-9]+}}, float %{{[0-9]+}}), !fpmath !0 +; CHECK: store volatile <2 x float> %arcp.25ulp + +; CHECK: call fast float @llvm.amdgcn.fdiv.fast(float %{{[0-9]+}}, float %{{[0-9]+}}), !fpmath !0 +; CHECK: call fast float @llvm.amdgcn.fdiv.fast(float %{{[0-9]+}}, float %{{[0-9]+}}), !fpmath !0 +; CHECK: store volatile <2 x float> %fast.25ulp +define void @rcp_fdiv_fpmath_vector_partial_constant(<2 x float> addrspace(1)* %out, <2 x float> %x, <2 x float> %y) #1 { + %x.insert = insertelement <2 x float> %x, float 1.0, i32 0 + + %arcp.25ulp = fdiv arcp <2 x float> %x.insert, %y, !fpmath !0 + store volatile <2 x float> %arcp.25ulp, <2 x float> addrspace(1)* %out + + %fast.25ulp = fdiv fast <2 x float> %x.insert, %y, !fpmath !0 + store volatile <2 x float> %fast.25ulp, <2 x float> addrspace(1)* %out + + ret void +} + +; CHECK-LABEL: @fdiv_fpmath_f32_denormals( +; CHECK: %no.md = fdiv float %a, %b{{$}} +; CHECK: %md.half.ulp = fdiv float %a, %b, !fpmath !1 +; CHECK: %md.1ulp = fdiv float %a, %b, !fpmath !2 +; CHECK: %md.25ulp = fdiv float %a, %b, !fpmath !0 +; CHECK: %md.3ulp = fdiv float %a, %b, !fpmath !3 +; CHECK: call fast float @llvm.amdgcn.fdiv.fast(float %a, float %b), !fpmath !0 +; CHECK: call arcp float @llvm.amdgcn.fdiv.fast(float %a, float %b), !fpmath !0 +define void @fdiv_fpmath_f32_denormals(float addrspace(1)* %out, float %a, float %b) #2 { + %no.md = fdiv float %a, %b + store volatile float %no.md, float addrspace(1)* %out + + %md.half.ulp = fdiv float %a, %b, !fpmath !1 + store volatile float %md.half.ulp, float addrspace(1)* %out + + %md.1ulp = fdiv float %a, %b, !fpmath !2 + store volatile float %md.1ulp, float addrspace(1)* %out + + %md.25ulp = fdiv float %a, %b, !fpmath !0 + store volatile float %md.25ulp, float addrspace(1)* %out + + %md.3ulp = fdiv float %a, %b, !fpmath !3 + store volatile float %md.3ulp, float addrspace(1)* %out + + %fast.md.25ulp = fdiv fast float %a, %b, !fpmath !0 + store volatile float %fast.md.25ulp, float addrspace(1)* %out + + %arcp.md.25ulp = fdiv arcp float %a, %b, !fpmath !0 + store volatile float %arcp.md.25ulp, float addrspace(1)* %out + + ret void +} + +attributes #0 = { nounwind optnone noinline } +attributes #1 = { nounwind } +attributes #2 = { nounwind "target-features"="+fp32-denormals" } + +; CHECK: !0 = !{float 2.500000e+00} +; CHECK: !1 = !{float 5.000000e-01} +; CHECK: !2 = !{float 1.000000e+00} +; CHECK: !3 = !{float 3.000000e+00} + +!0 = !{float 2.500000e+00} +!1 = !{float 5.000000e-01} +!2 = !{float 1.000000e+00} +!3 = !{float 3.000000e+00} |
