diff options
Diffstat (limited to 'llvm/test/CodeGen/AMDGPU/fneg.f16.ll')
| -rw-r--r-- | llvm/test/CodeGen/AMDGPU/fneg.f16.ll | 106 |
1 files changed, 91 insertions, 15 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/fneg.f16.ll b/llvm/test/CodeGen/AMDGPU/fneg.f16.ll index d545cc789d8..d0c6d3d5155 100644 --- a/llvm/test/CodeGen/AMDGPU/fneg.f16.ll +++ b/llvm/test/CodeGen/AMDGPU/fneg.f16.ll @@ -1,11 +1,11 @@ -; RUN: llc -march=amdgcn -mcpu=kaveri -mtriple=amdgcn--amdhsa -verify-machineinstrs < %s | FileCheck -check-prefix=CI -check-prefix=GCN -check-prefix=FUNC %s -; RUN: llc -march=amdgcn -mcpu=tonga -mtriple=amdgcn--amdhsa -verify-machineinstrs < %s | FileCheck -check-prefix=VI -check-prefix=GCN -check-prefix=FUNC %s +; RUN: llc -march=amdgcn -mcpu=kaveri -mtriple=amdgcn--amdhsa -verify-machineinstrs < %s | FileCheck -check-prefix=CI -check-prefix=CIVI -check-prefix=GCN %s +; RUN: llc -march=amdgcn -mcpu=tonga -mtriple=amdgcn--amdhsa -verify-machineinstrs < %s | FileCheck -check-prefix=VI -check-prefix=CIVI -check-prefix=GCN %s +; RUN: llc -march=amdgcn -mcpu=gfx901 -mtriple=amdgcn--amdhsa -verify-machineinstrs < %s | FileCheck -check-prefix=GFX9 -check-prefix=GCN %s ; FIXME: Should be able to do scalar op -; FUNC-LABEL: {{^}}s_fneg_f16: - -define void @s_fneg_f16(half addrspace(1)* %out, half %in) { - %fneg = fsub half -0.000000e+00, %in +; GCN-LABEL: {{^}}s_fneg_f16: +define void @s_fneg_f16(half addrspace(1)* %out, half %in) #0 { + %fneg = fsub half -0.0, %in store half %fneg, half addrspace(1)* %out ret void } @@ -13,32 +13,35 @@ define void @s_fneg_f16(half addrspace(1)* %out, half %in) { ; FIXME: Should be able to use bit operations when illegal type as ; well. -; FUNC-LABEL: {{^}}v_fneg_f16: +; GCN-LABEL: {{^}}v_fneg_f16: ; GCN: flat_load_ushort [[VAL:v[0-9]+]], ; GCN: v_xor_b32_e32 [[XOR:v[0-9]+]], 0x8000, [[VAL]] ; VI: flat_store_short v{{\[[0-9]+:[0-9]+\]}}, [[XOR]] ; SI: buffer_store_short [[XOR]] -define void @v_fneg_f16(half addrspace(1)* %out, half addrspace(1)* %in) { - %val = load half, half addrspace(1)* %in, align 2 - %fneg = fsub half -0.000000e+00, %val - store half %fneg, half addrspace(1)* %out +define void @v_fneg_f16(half addrspace(1)* %out, half addrspace(1)* %in) #0 { + %tid = call i32 @llvm.amdgcn.workitem.id.x() + %gep.in = getelementptr inbounds half, half addrspace(1)* %in, i32 %tid + %gep.out = getelementptr inbounds half, half addrspace(1)* %in, i32 %tid + %val = load half, half addrspace(1)* %gep.in, align 2 + %fneg = fsub half -0.0, %val + store half %fneg, half addrspace(1)* %gep.out ret void } -; FUNC-LABEL: {{^}}fneg_free_f16: +; GCN-LABEL: {{^}}fneg_free_f16: ; GCN: flat_load_ushort [[NEG_VALUE:v[0-9]+]], ; XCI: s_xor_b32 [[XOR:s[0-9]+]], [[NEG_VALUE]], 0x8000{{$}} ; CI: v_xor_b32_e32 [[XOR:v[0-9]+]], 0x8000, [[NEG_VALUE]] ; CI: flat_store_short v{{\[[0-9]+:[0-9]+\]}}, [[XOR]] -define void @fneg_free_f16(half addrspace(1)* %out, i16 %in) { +define void @fneg_free_f16(half addrspace(1)* %out, i16 %in) #0 { %bc = bitcast i16 %in to half %fsub = fsub half -0.0, %bc store half %fsub, half addrspace(1)* %out ret void } -; FUNC-LABEL: {{^}}v_fneg_fold_f16: +; GCN-LABEL: {{^}}v_fneg_fold_f16: ; GCN: flat_load_ushort [[NEG_VALUE:v[0-9]+]] ; CI-DAG: v_cvt_f32_f16_e32 [[CVT_VAL:v[0-9]+]], [[NEG_VALUE]] @@ -49,10 +52,83 @@ define void @fneg_free_f16(half addrspace(1)* %out, i16 %in) { ; VI-NOT: [[NEG_VALUE]] ; VI: v_mul_f16_e64 v{{[0-9]+}}, -[[NEG_VALUE]], [[NEG_VALUE]] -define void @v_fneg_fold_f16(half addrspace(1)* %out, half addrspace(1)* %in) { +define void @v_fneg_fold_f16(half addrspace(1)* %out, half addrspace(1)* %in) #0 { %val = load half, half addrspace(1)* %in %fsub = fsub half -0.0, %val %fmul = fmul half %fsub, %val store half %fmul, half addrspace(1)* %out ret void } + +; FIXME: Terrible code with VI and even worse with SI/CI +; GCN-LABEL: {{^}}s_fneg_v2f16: +; CI: s_mov_b32 [[MASK:s[0-9]+]], 0x8000{{$}} +; CI: v_xor_b32_e32 v{{[0-9]+}}, [[MASK]], v{{[0-9]+}} +; CI: v_lshlrev_b32_e32 v{{[0-9]+}}, 16, v{{[0-9]+}} +; CI: v_xor_b32_e32 v{{[0-9]+}}, [[MASK]], v{{[0-9]+}} +; CI: v_or_b32_e32 + +; VI: v_mov_b32_e32 [[MASK:v[0-9]+]], 0x8000{{$}} +; VI: v_xor_b32_e32 v{{[0-9]+}}, v{{[0-9]+}}, [[MASK]] +; VI: v_xor_b32_e32 v{{[0-9]+}}, v{{[0-9]+}}, [[MASK]] + +; GFX9: v_xor_b32_e32 v{{[0-9]+}}, 0x80008000, v{{[0-9]+}} +define void @s_fneg_v2f16(<2 x half> addrspace(1)* %out, <2 x half> %in) #0 { + %fneg = fsub <2 x half> <half -0.0, half -0.0>, %in + store <2 x half> %fneg, <2 x half> addrspace(1)* %out + ret void +} + +; GCN-LABEL: {{^}}v_fneg_v2f16: +; GCN: flat_load_dword [[VAL:v[0-9]+]] +; GCN: v_xor_b32_e32 v{{[0-9]+}}, 0x80008000, [[VAL]] +define void @v_fneg_v2f16(<2 x half> addrspace(1)* %out, <2 x half> addrspace(1)* %in) #0 { + %tid = call i32 @llvm.amdgcn.workitem.id.x() + %gep.in = getelementptr inbounds <2 x half>, <2 x half> addrspace(1)* %in, i32 %tid + %gep.out = getelementptr inbounds <2 x half>, <2 x half> addrspace(1)* %in, i32 %tid + %val = load <2 x half>, <2 x half> addrspace(1)* %gep.in, align 2 + %fneg = fsub <2 x half> <half -0.0, half -0.0>, %val + store <2 x half> %fneg, <2 x half> addrspace(1)* %gep.out + ret void +} + +; GCN-LABEL: {{^}}fneg_free_v2f16: +; GCN: s_load_dword [[VAL:s[0-9]+]] +; CIVI: s_xor_b32 s{{[0-9]+}}, [[VAL]], 0x80008000 + +; GFX9: v_mov_b32_e32 [[VVAL:v[0-9]+]], [[VAL]] +; GFX9: v_xor_b32_e32 v{{[0-9]+}}, 0x80008000, [[VVAL]] +define void @fneg_free_v2f16(<2 x half> addrspace(1)* %out, i32 %in) #0 { + %bc = bitcast i32 %in to <2 x half> + %fsub = fsub <2 x half> <half -0.0, half -0.0>, %bc + store <2 x half> %fsub, <2 x half> addrspace(1)* %out + ret void +} + +; GCN-LABEL: {{^}}v_fneg_fold_v2f16: +; GCN: flat_load_dword [[VAL:v[0-9]+]] + +; CI: v_cvt_f32_f16_e64 v{{[0-9]+}}, -v{{[0-9]+}} +; CI: v_cvt_f32_f16_e64 v{{[0-9]+}}, -v{{[0-9]+}} +; CI: v_mul_f32_e32 v{{[0-9]+}}, v{{[0-9]+}}, v{{[0-9]+}} +; CI: v_cvt_f16_f32 +; CI: v_mul_f32_e32 v{{[0-9]+}}, v{{[0-9]+}}, v{{[0-9]+}} +; CI: v_cvt_f16_f32 + +; VI: v_lshrrev_b32_e32 v{{[0-9]+}}, 16, +; VI: v_mul_f16_e64 v{{[0-9]+}}, -v{{[0-9]+}}, v{{[0-9]+}} +; VI: v_mul_f16_e64 v{{[0-9]+}}, -v{{[0-9]+}}, v{{[0-9]+}} + +; GFX9: v_pk_mul_f16 v{{[0-9]+}}, v{{[0-9]+}}, v{{[0-9]+}} neg_lo:[1,0] neg_hi:[1,0]{{$}} +define void @v_fneg_fold_v2f16(<2 x half> addrspace(1)* %out, <2 x half> addrspace(1)* %in) #0 { + %val = load <2 x half>, <2 x half> addrspace(1)* %in + %fsub = fsub <2 x half> <half -0.0, half -0.0>, %val + %fmul = fmul <2 x half> %fsub, %val + store <2 x half> %fmul, <2 x half> addrspace(1)* %out + ret void +} + +declare i32 @llvm.amdgcn.workitem.id.x() #1 + +attributes #0 = { nounwind } +attributes #1 = { nounwind readnone } |
