forked from OSchip/llvm-project
233 lines
8.7 KiB
LLVM
233 lines
8.7 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=gfx900 -enable-unsafe-fp-math -verify-machineinstrs < %s | FileCheck %s -check-prefixes=GCN,GFX900
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; RUN: llc -march=amdgcn -mcpu=gfx906 -enable-unsafe-fp-math -verify-machineinstrs < %s | FileCheck %s -check-prefixes=GCN,GFX906-UNSAFE
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; RUN: llc -march=amdgcn -mcpu=gfx906 -verify-machineinstrs < %s | FileCheck %s -check-prefixes=GCN,GFX906
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; RUN: llc -march=amdgcn -mcpu=gfx906 -mattr=-fp64-fp16-denormals,-fp32-denormals -fp-contract=fast -verify-machineinstrs < %s | FileCheck %s -check-prefixes=GCN,GFX906-CONTRACT
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; RUN: llc -march=amdgcn -mcpu=gfx906 -mattr=+fp64-fp16-denormals,+fp32-denormals -fp-contract=fast -verify-machineinstrs < %s | FileCheck %s -check-prefixes=GCN,GFX906-DENORM-CONTRACT
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; (fadd (fmul S1.x, S2.x), (fadd (fmul (S1.y, S2.y), z))) -> (fdot2 S1, S2, z)
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; Tests to make sure fdot2 is not generated when vector elements of dot-product expressions
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; are not converted from f16 to f32.
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; GCN-LABEL: {{^}}dotproduct_f16
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; GFX900: v_fma_legacy_f16
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; GFX900: v_fma_legacy_f16
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; GFX906: v_mul_f16_e32
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; GFX906: v_mul_f16_e32
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; GFX906-UNSAFE: v_fma_legacy_f16
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; GFX906-CONTRACT: v_mac_f16_e32
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; GFX906-DENORM-CONTRACT: v_fma_legacy_f16
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define amdgpu_kernel void @dotproduct_f16(<2 x half> addrspace(1)* %src1,
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<2 x half> addrspace(1)* %src2,
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half addrspace(1)* nocapture %dst) {
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entry:
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%src1.vec = load <2 x half>, <2 x half> addrspace(1)* %src1
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%src2.vec = load <2 x half>, <2 x half> addrspace(1)* %src2
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%src1.el1 = extractelement <2 x half> %src1.vec, i64 0
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%src2.el1 = extractelement <2 x half> %src2.vec, i64 0
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%src1.el2 = extractelement <2 x half> %src1.vec, i64 1
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%src2.el2 = extractelement <2 x half> %src2.vec, i64 1
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%mul2 = fmul half %src1.el2, %src2.el2
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%mul1 = fmul half %src1.el1, %src2.el1
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%acc = load half, half addrspace(1)* %dst, align 2
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%acc1 = fadd half %mul2, %acc
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%acc2 = fadd half %mul1, %acc1
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store half %acc2, half addrspace(1)* %dst, align 2
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ret void
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}
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; We only want to generate fdot2 if vector element of dot product is converted from f16 to f32
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; and the vectors are of type <2 x half>
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; GCN-LABEL: {{^}}dotproduct_f16_f32
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; GFX900: v_mad_mix_f32
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; GFX900: v_mad_mix_f32
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; GFX906: v_mad_f32
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; GFX906: v_mac_f32_e32
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; GFX906-UNSAFE: v_dot2_f32_f16
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; GFX906-CONTRACT: v_dot2_f32_f16
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; GFX906-DENORM-CONTRACT: v_dot2_f32_f16
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define amdgpu_kernel void @dotproduct_f16_f32(<2 x half> addrspace(1)* %src1,
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<2 x half> addrspace(1)* %src2,
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float addrspace(1)* nocapture %dst) {
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entry:
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%src1.vec = load <2 x half>, <2 x half> addrspace(1)* %src1
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%src2.vec = load <2 x half>, <2 x half> addrspace(1)* %src2
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%src1.el1 = extractelement <2 x half> %src1.vec, i64 0
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%csrc1.el1 = fpext half %src1.el1 to float
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%src2.el1 = extractelement <2 x half> %src2.vec, i64 0
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%csrc2.el1 = fpext half %src2.el1 to float
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%src1.el2 = extractelement <2 x half> %src1.vec, i64 1
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%csrc1.el2 = fpext half %src1.el2 to float
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%src2.el2 = extractelement <2 x half> %src2.vec, i64 1
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%csrc2.el2 = fpext half %src2.el2 to float
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%mul2 = fmul float %csrc1.el2, %csrc2.el2
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%mul1 = fmul float %csrc1.el1, %csrc2.el1
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%acc = load float, float addrspace(1)* %dst, align 4
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%acc1 = fadd float %mul2, %acc
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%acc2 = fadd float %mul1, %acc1
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store float %acc2, float addrspace(1)* %dst, align 4
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ret void
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}
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; We only want to generate fdot2 if vector element of dot product is converted from f16 to f32
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; and the vectors are of type <2 x half>
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; GCN-LABEL: {{^}}dotproduct_diffvecorder
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; GFX900: v_mad_mix_f32
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; GFX900: v_mad_mix_f32
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; GFX906: v_mad_f32
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; GFX906: v_mac_f32_e32
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; GFX906-UNSAFE: v_dot2_f32_f16
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; GFX906-CONTRACT: v_dot2_f32_f16
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; GFX906-DENORM-CONTRACT: v_dot2_f32_f16
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define amdgpu_kernel void @dotproduct_diffvecorder(<2 x half> addrspace(1)* %src1,
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<2 x half> addrspace(1)* %src2,
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float addrspace(1)* nocapture %dst) {
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entry:
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%src1.vec = load <2 x half>, <2 x half> addrspace(1)* %src1
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%src2.vec = load <2 x half>, <2 x half> addrspace(1)* %src2
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%src1.el1 = extractelement <2 x half> %src1.vec, i64 0
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%csrc1.el1 = fpext half %src1.el1 to float
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%src2.el1 = extractelement <2 x half> %src2.vec, i64 0
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%csrc2.el1 = fpext half %src2.el1 to float
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%src1.el2 = extractelement <2 x half> %src1.vec, i64 1
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%csrc1.el2 = fpext half %src1.el2 to float
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%src2.el2 = extractelement <2 x half> %src2.vec, i64 1
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%csrc2.el2 = fpext half %src2.el2 to float
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%mul2 = fmul float %csrc2.el2, %csrc1.el2
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%mul1 = fmul float %csrc1.el1, %csrc2.el1
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%acc = load float, float addrspace(1)* %dst, align 4
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%acc1 = fadd float %mul2, %acc
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%acc2 = fadd float %mul1, %acc1
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store float %acc2, float addrspace(1)* %dst, align 4
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ret void
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}
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; Tests to make sure dot product is not generated when the vectors are not of <2 x half>.
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; GCN-LABEL: {{^}}dotproduct_v4f16
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; GFX900: v_mad_mix_f32
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; GFX906: v_mad_f32
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; GFX906: v_mac_f32_e32
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; GFX906-UNSAFE: v_fma_mix_f32
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; GFX906-CONTRACT: v_fma_mix_f32
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; GFX906-DENORM-CONTRACT: v_fma_mix_f32
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define amdgpu_kernel void @dotproduct_v4f16(<4 x half> addrspace(1)* %src1,
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<4 x half> addrspace(1)* %src2,
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float addrspace(1)* nocapture %dst) {
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entry:
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%src1.vec = load <4 x half>, <4 x half> addrspace(1)* %src1
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%src2.vec = load <4 x half>, <4 x half> addrspace(1)* %src2
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%src1.el1 = extractelement <4 x half> %src1.vec, i64 0
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%csrc1.el1 = fpext half %src1.el1 to float
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%src2.el1 = extractelement <4 x half> %src2.vec, i64 0
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%csrc2.el1 = fpext half %src2.el1 to float
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%src1.el2 = extractelement <4 x half> %src1.vec, i64 1
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%csrc1.el2 = fpext half %src1.el2 to float
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%src2.el2 = extractelement <4 x half> %src2.vec, i64 1
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%csrc2.el2 = fpext half %src2.el2 to float
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%mul2 = fmul float %csrc1.el2, %csrc2.el2
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%mul1 = fmul float %csrc1.el1, %csrc2.el1
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%acc = load float, float addrspace(1)* %dst, align 4
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%acc1 = fadd float %mul2, %acc
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%acc2 = fadd float %mul1, %acc1
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store float %acc2, float addrspace(1)* %dst, align 4
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ret void
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}
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; GCN-LABEL: {{^}}NotAdotproduct
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; GFX900: v_mad_mix_f32
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; GFX900: v_mad_mix_f32
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; GFX906: v_mad_f32
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; GFX906: v_mac_f32_e32
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; GFX906-UNSAFE: v_fma_mix_f32
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; GFX906-CONTRACT: v_fma_mix_f32
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; GFX906-DENORM-CONTRACT: v_fma_mix_f32
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define amdgpu_kernel void @NotAdotproduct(<2 x half> addrspace(1)* %src1,
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<2 x half> addrspace(1)* %src2,
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float addrspace(1)* nocapture %dst) {
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entry:
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%src1.vec = load <2 x half>, <2 x half> addrspace(1)* %src1
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%src2.vec = load <2 x half>, <2 x half> addrspace(1)* %src2
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%src1.el1 = extractelement <2 x half> %src1.vec, i64 0
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%csrc1.el1 = fpext half %src1.el1 to float
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%src2.el1 = extractelement <2 x half> %src2.vec, i64 0
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%csrc2.el1 = fpext half %src2.el1 to float
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%src1.el2 = extractelement <2 x half> %src1.vec, i64 1
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%csrc1.el2 = fpext half %src1.el2 to float
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%src2.el2 = extractelement <2 x half> %src2.vec, i64 1
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%csrc2.el2 = fpext half %src2.el2 to float
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%mul2 = fmul float %csrc1.el2, %csrc1.el1
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%mul1 = fmul float %csrc2.el1, %csrc2.el2
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%acc = load float, float addrspace(1)* %dst, align 4
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%acc1 = fadd float %mul2, %acc
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%acc2 = fadd float %mul1, %acc1
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store float %acc2, float addrspace(1)* %dst, align 4
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ret void
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}
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; GCN-LABEL: {{^}}Diff_Idx_NotAdotproduct
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; GFX900: v_mad_mix_f32
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; GFX900: v_mad_mix_f32
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; GFX906: v_mad_f32
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; GFX906: v_mac_f32_e32
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; GFX906-UNSAFE: v_fma_mix_f32
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; GFX906-CONTRACT: v_fma_mix_f32
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; GFX906-DENORM-CONTRACT: v_fma_mix_f32
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define amdgpu_kernel void @Diff_Idx_NotAdotproduct(<2 x half> addrspace(1)* %src1,
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<2 x half> addrspace(1)* %src2,
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float addrspace(1)* nocapture %dst) {
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entry:
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%src1.vec = load <2 x half>, <2 x half> addrspace(1)* %src1
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%src2.vec = load <2 x half>, <2 x half> addrspace(1)* %src2
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%src1.el1 = extractelement <2 x half> %src1.vec, i64 0
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%csrc1.el1 = fpext half %src1.el1 to float
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%src2.el1 = extractelement <2 x half> %src2.vec, i64 0
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%csrc2.el1 = fpext half %src2.el1 to float
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%src1.el2 = extractelement <2 x half> %src1.vec, i64 1
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%csrc1.el2 = fpext half %src1.el2 to float
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%src2.el2 = extractelement <2 x half> %src2.vec, i64 1
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%csrc2.el2 = fpext half %src2.el2 to float
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%mul2 = fmul float %csrc1.el2, %csrc2.el1
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%mul1 = fmul float %csrc1.el1, %csrc2.el2
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%acc = load float, float addrspace(1)* %dst, align 4
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%acc1 = fadd float %mul2, %acc
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%acc2 = fadd float %mul1, %acc1
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store float %acc2, float addrspace(1)* %dst, align 4
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ret void
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}
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