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288 lines
11 KiB
LLVM
288 lines
11 KiB
LLVM
; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mattr=+mad-mac-f32-insts -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=GCN %s
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; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=tonga -denormal-fp-math=preserve-sign -denormal-fp-math-f32=preserve-sign -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=VI -check-prefix=VI-FLUSH -check-prefix=GCN %s
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; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=tonga -denormal-fp-math=ieee -denormal-fp-math-f32=preserve-sign -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=VI -check-prefix=VI-DENORM -check-prefix=GCN %s
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; GCN-LABEL: {{^}}mac_vvv:
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; GCN: buffer_load_dword [[A:v[0-9]+]], off, s[{{[0-9]+:[0-9]+}}], 0{{$}}
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; GCN: buffer_load_dword [[B:v[0-9]+]], off, s[{{[0-9]+:[0-9]+}}], 0 offset:4
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; GCN: buffer_load_dword [[C:v[0-9]+]], off, s[{{[0-9]+:[0-9]+}}], 0 offset:8
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; GCN: v_mac_f32_e32 [[C]], [[A]], [[B]]
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; GCN: buffer_store_dword [[C]]
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define amdgpu_kernel void @mac_vvv(float addrspace(1)* %out, float addrspace(1)* %in) #0 {
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entry:
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%b_ptr = getelementptr float, float addrspace(1)* %in, i32 1
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%c_ptr = getelementptr float, float addrspace(1)* %in, i32 2
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%a = load volatile float, float addrspace(1)* %in
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%b = load volatile float, float addrspace(1)* %b_ptr
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%c = load volatile float, float addrspace(1)* %c_ptr
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%tmp0 = fmul float %a, %b
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%tmp1 = fadd float %tmp0, %c
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store float %tmp1, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}mad_inline_sgpr_inline:
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; GCN-NOT: v_mac_f32
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; GCN: v_mad_f32 v{{[0-9]}}, s{{[0-9]+}}, 0.5, 0.5
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define amdgpu_kernel void @mad_inline_sgpr_inline(float addrspace(1)* %out, float %in) #0 {
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entry:
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%tmp0 = fmul float 0.5, %in
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%tmp1 = fadd float %tmp0, 0.5
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store float %tmp1, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}mad_vvs:
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; GCN-NOT: v_mac_f32
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; GCN: v_mad_f32 v{{[0-9]+}}, v{{[0-9]+}}, v{{[0-9]+}}, s{{[0-9]+}}
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define amdgpu_kernel void @mad_vvs(float addrspace(1)* %out, float addrspace(1)* %in, float %c) #0 {
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entry:
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%b_ptr = getelementptr float, float addrspace(1)* %in, i32 1
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%a = load float, float addrspace(1)* %in
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%b = load float, float addrspace(1)* %b_ptr
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%tmp0 = fmul float %a, %b
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%tmp1 = fadd float %tmp0, %c
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store float %tmp1, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}mac_ssv:
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; GCN: v_mac_f32_e64 v{{[0-9]+}}, s{{[0-9]+}}, s{{[0-9]+}}
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define amdgpu_kernel void @mac_ssv(float addrspace(1)* %out, float addrspace(1)* %in, float %a) #0 {
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entry:
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%c = load float, float addrspace(1)* %in
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%tmp0 = fmul float %a, %a
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%tmp1 = fadd float %tmp0, %c
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store float %tmp1, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}mac_mad_same_add:
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; GCN: v_mad_f32 v{{[0-9]}}, v{{[0-9]+}}, v{{[0-9]+}}, [[ADD:v[0-9]+]]
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; GCN: v_mac_f32_e32 [[ADD]], v{{[0-9]+}}, v{{[0-9]+}}
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define amdgpu_kernel void @mac_mad_same_add(float addrspace(1)* %out, float addrspace(1)* %in) #0 {
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entry:
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%b_ptr = getelementptr float, float addrspace(1)* %in, i32 1
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%c_ptr = getelementptr float, float addrspace(1)* %in, i32 2
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%d_ptr = getelementptr float, float addrspace(1)* %in, i32 3
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%e_ptr = getelementptr float, float addrspace(1)* %in, i32 4
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%a = load volatile float, float addrspace(1)* %in
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%b = load volatile float, float addrspace(1)* %b_ptr
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%c = load volatile float, float addrspace(1)* %c_ptr
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%d = load volatile float, float addrspace(1)* %d_ptr
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%e = load volatile float, float addrspace(1)* %e_ptr
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%tmp0 = fmul float %a, %b
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%tmp1 = fadd float %tmp0, %c
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%tmp2 = fmul float %d, %e
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%tmp3 = fadd float %tmp2, %c
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%out1 = getelementptr float, float addrspace(1)* %out, i32 1
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store float %tmp1, float addrspace(1)* %out
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store float %tmp3, float addrspace(1)* %out1
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ret void
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}
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; There is no advantage to using v_mac when one of the operands is negated
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; and v_mad accepts more operand types.
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; GCN-LABEL: {{^}}mad_neg_src0:
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; GCN-NOT: v_mac_f32
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; GCN: v_mad_f32 v{{[0-9]+}}, -v{{[0-9]+}}, v{{[0-9]+}}, v{{[-0-9]}}
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define amdgpu_kernel void @mad_neg_src0(float addrspace(1)* %out, float addrspace(1)* %in) #0 {
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entry:
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%b_ptr = getelementptr float, float addrspace(1)* %in, i32 1
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%c_ptr = getelementptr float, float addrspace(1)* %in, i32 2
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%a = load float, float addrspace(1)* %in
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%b = load float, float addrspace(1)* %b_ptr
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%c = load float, float addrspace(1)* %c_ptr
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%neg_a = fsub float -0.0, %a
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%tmp0 = fmul float %neg_a, %b
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%tmp1 = fadd float %tmp0, %c
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store float %tmp1, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}nsz_mad_sub0_src0:
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; GCN-NOT: v_mac_f32
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; GCN: v_mad_f32 v{{[0-9]+}}, -v{{[0-9]+}}, v{{[0-9]+}}, v{{[-0-9]}}
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define amdgpu_kernel void @nsz_mad_sub0_src0(float addrspace(1)* %out, float addrspace(1)* %in) #1 {
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entry:
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%b_ptr = getelementptr float, float addrspace(1)* %in, i32 1
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%c_ptr = getelementptr float, float addrspace(1)* %in, i32 2
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%a = load float, float addrspace(1)* %in
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%b = load float, float addrspace(1)* %b_ptr
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%c = load float, float addrspace(1)* %c_ptr
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%neg_a = fsub float 0.0, %a
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%tmp0 = fmul float %neg_a, %b
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%tmp1 = fadd float %tmp0, %c
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store float %tmp1, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}safe_mad_sub0_src0:
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; GCN: v_sub_f32_e32 [[SUB0:v[0-9]+]], 0,
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; GCN: v_ma{{[cd]}}_f32{{[_e32]*}} v{{[0-9]+}}, [[SUB0]], v{{[0-9]+}}
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define amdgpu_kernel void @safe_mad_sub0_src0(float addrspace(1)* %out, float addrspace(1)* %in) #0 {
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entry:
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%b_ptr = getelementptr float, float addrspace(1)* %in, i32 1
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%c_ptr = getelementptr float, float addrspace(1)* %in, i32 2
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%a = load float, float addrspace(1)* %in
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%b = load float, float addrspace(1)* %b_ptr
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%c = load float, float addrspace(1)* %c_ptr
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%neg_a = fsub float 0.0, %a
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%tmp0 = fmul float %neg_a, %b
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%tmp1 = fadd float %tmp0, %c
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store float %tmp1, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}mad_neg_src1:
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; GCN-NOT: v_mac_f32
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; GCN: v_mad_f32 v{{[0-9]+}}, -v{{[0-9]+}}, v{{[0-9]+}}, v{{[-0-9]}}
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define amdgpu_kernel void @mad_neg_src1(float addrspace(1)* %out, float addrspace(1)* %in) #0 {
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entry:
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%b_ptr = getelementptr float, float addrspace(1)* %in, i32 1
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%c_ptr = getelementptr float, float addrspace(1)* %in, i32 2
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%a = load float, float addrspace(1)* %in
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%b = load float, float addrspace(1)* %b_ptr
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%c = load float, float addrspace(1)* %c_ptr
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%neg_b = fsub float -0.0, %b
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%tmp0 = fmul float %a, %neg_b
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%tmp1 = fadd float %tmp0, %c
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store float %tmp1, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}nsz_mad_sub0_src1:
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; GCN-NOT: v_mac_f32
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; GCN: v_mad_f32 v{{[0-9]+}}, -v{{[0-9]+}}, v{{[0-9]+}}, v{{[-0-9]}}
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define amdgpu_kernel void @nsz_mad_sub0_src1(float addrspace(1)* %out, float addrspace(1)* %in) #1 {
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entry:
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%b_ptr = getelementptr float, float addrspace(1)* %in, i32 1
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%c_ptr = getelementptr float, float addrspace(1)* %in, i32 2
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%a = load float, float addrspace(1)* %in
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%b = load float, float addrspace(1)* %b_ptr
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%c = load float, float addrspace(1)* %c_ptr
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%neg_b = fsub float 0.0, %b
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%tmp0 = fmul float %a, %neg_b
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%tmp1 = fadd float %tmp0, %c
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store float %tmp1, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}mad_neg_src2:
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; GCN-NOT: v_mac
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; GCN: v_mad_f32 v{{[0-9]+}}, v{{[0-9]+}}, v{{[0-9]+}}, -v{{[-0-9]}}
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define amdgpu_kernel void @mad_neg_src2(float addrspace(1)* %out, float addrspace(1)* %in) #0 {
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entry:
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%b_ptr = getelementptr float, float addrspace(1)* %in, i32 1
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%c_ptr = getelementptr float, float addrspace(1)* %in, i32 2
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%a = load float, float addrspace(1)* %in
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%b = load float, float addrspace(1)* %b_ptr
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%c = load float, float addrspace(1)* %c_ptr
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%neg_c = fsub float -0.0, %c
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%tmp0 = fmul float %a, %b
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%tmp1 = fadd float %tmp0, %neg_c
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store float %tmp1, float addrspace(1)* %out
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ret void
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}
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; Without special casing the inline constant check for v_mac_f32's
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; src2, this fails to fold the 1.0 into a mad.
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; GCN-LABEL: {{^}}fold_inline_imm_into_mac_src2_f32:
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; GCN: {{buffer|flat}}_load_dword [[A:v[0-9]+]]
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; GCN: {{buffer|flat}}_load_dword [[B:v[0-9]+]]
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; GCN: v_add_f32_e32 [[TMP2:v[0-9]+]], [[A]], [[A]]
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; GCN: v_mad_f32 v{{[0-9]+}}, [[TMP2]], -4.0, 1.0
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define amdgpu_kernel void @fold_inline_imm_into_mac_src2_f32(float addrspace(1)* %out, float addrspace(1)* %a, float addrspace(1)* %b) #3 {
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bb:
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.ext = sext i32 %tid to i64
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%gep.a = getelementptr inbounds float, float addrspace(1)* %a, i64 %tid.ext
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%gep.b = getelementptr inbounds float, float addrspace(1)* %b, i64 %tid.ext
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%gep.out = getelementptr inbounds float, float addrspace(1)* %out, i64 %tid.ext
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%tmp = load volatile float, float addrspace(1)* %gep.a
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%tmp1 = load volatile float, float addrspace(1)* %gep.b
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%tmp2 = fadd float %tmp, %tmp
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%tmp3 = fmul float %tmp2, 4.0
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%tmp4 = fsub float 1.0, %tmp3
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%tmp5 = fadd float %tmp4, %tmp1
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%tmp6 = fadd float %tmp1, %tmp1
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%tmp7 = fmul float %tmp6, %tmp
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%tmp8 = fsub float 1.0, %tmp7
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%tmp9 = fmul float %tmp8, 8.0
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%tmp10 = fadd float %tmp5, %tmp9
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store float %tmp10, float addrspace(1)* %gep.out
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ret void
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}
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; GCN-LABEL: {{^}}fold_inline_imm_into_mac_src2_f16:
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; GCN: {{buffer|flat}}_load_ushort [[A:v[0-9]+]]
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; GCN: {{buffer|flat}}_load_ushort [[B:v[0-9]+]]
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; SI-DAG: v_cvt_f32_f16_e32 [[CVT_A:v[0-9]+]], [[A]]
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; SI-DAG: v_cvt_f32_f16_e32 [[CVT_B:v[0-9]+]], [[B]]
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; SI: v_add_f32_e32 [[TMP2:v[0-9]+]], [[CVT_A]], [[CVT_A]]
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; SI: v_mad_f32 v{{[0-9]+}}, [[TMP2]], -4.0, 1.0
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; SI: v_mac_f32_e32 v{{[0-9]+}}, 0x41000000, v{{[0-9]+}}
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; VI-FLUSH: v_add_f16_e32 [[TMP2:v[0-9]+]], [[A]], [[A]]
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; VI-FLUSH: v_mad_f16 v{{[0-9]+}}, [[TMP2]], -4.0, 1.0
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define amdgpu_kernel void @fold_inline_imm_into_mac_src2_f16(half addrspace(1)* %out, half addrspace(1)* %a, half addrspace(1)* %b) #3 {
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bb:
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%tid.ext = sext i32 %tid to i64
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%gep.a = getelementptr inbounds half, half addrspace(1)* %a, i64 %tid.ext
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%gep.b = getelementptr inbounds half, half addrspace(1)* %b, i64 %tid.ext
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%gep.out = getelementptr inbounds half, half addrspace(1)* %out, i64 %tid.ext
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%tmp = load volatile half, half addrspace(1)* %gep.a
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%tmp1 = load volatile half, half addrspace(1)* %gep.b
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%tmp2 = fadd half %tmp, %tmp
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%tmp3 = fmul half %tmp2, 4.0
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%tmp4 = fsub half 1.0, %tmp3
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%tmp5 = fadd half %tmp4, %tmp1
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%tmp6 = fadd half %tmp1, %tmp1
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%tmp7 = fmul half %tmp6, %tmp
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%tmp8 = fsub half 1.0, %tmp7
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%tmp9 = fmul half %tmp8, 8.0
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%tmp10 = fadd half %tmp5, %tmp9
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store half %tmp10, half addrspace(1)* %gep.out
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ret void
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}
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declare i32 @llvm.amdgcn.workitem.id.x() #2
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attributes #0 = { nounwind "no-signed-zeros-fp-math"="false" }
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attributes #1 = { nounwind "no-signed-zeros-fp-math"="true" }
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attributes #2 = { nounwind readnone }
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attributes #3 = { nounwind }
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