163 lines
6.9 KiB
LLVM
163 lines
6.9 KiB
LLVM
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; RUN: llc -march=amdgcn -mcpu=hawaii -verify-machineinstrs < %s | FileCheck -check-prefix=CI -check-prefix=GCN %s
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; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=GCN %s
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; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -check-prefix=CI -check-prefix=GCN %s
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; GCN-LABEL: {{^}}fdiv_f64:
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; GCN-DAG: buffer_load_dwordx2 [[NUM:v\[[0-9]+:[0-9]+\]]], off, {{s\[[0-9]+:[0-9]+\]}}, 0
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; GCN-DAG: buffer_load_dwordx2 [[DEN:v\[[0-9]+:[0-9]+\]]], off, {{s\[[0-9]+:[0-9]+\]}}, 0 offset:8
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; CI-DAG: v_div_scale_f64 [[SCALE0:v\[[0-9]+:[0-9]+\]]], {{s\[[0-9]+:[0-9]+\]}}, [[DEN]], [[DEN]], [[NUM]]
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; CI-DAG: v_div_scale_f64 [[SCALE1:v\[[0-9]+:[0-9]+\]]], vcc, [[NUM]], [[DEN]], [[NUM]]
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; Check for div_scale bug workaround on SI
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; SI-DAG: v_div_scale_f64 [[SCALE0:v\[[0-9]+:[0-9]+\]]], {{s\[[0-9]+:[0-9]+\]}}, [[DEN]], [[DEN]], [[NUM]]
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; SI-DAG: v_div_scale_f64 [[SCALE1:v\[[0-9]+:[0-9]+\]]], {{s\[[0-9]+:[0-9]+\]}}, [[NUM]], [[DEN]], [[NUM]]
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; GCN-DAG: v_rcp_f64_e32 [[RCP_SCALE0:v\[[0-9]+:[0-9]+\]]], [[SCALE0]]
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; SI-DAG: v_cmp_eq_u32_e32 vcc, {{v[0-9]+}}, {{v[0-9]+}}
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; SI-DAG: v_cmp_eq_u32_e64 [[CMP0:s\[[0-9]+:[0-9]+\]]], {{v[0-9]+}}, {{v[0-9]+}}
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; SI-DAG: s_xor_b64 vcc, [[CMP0]], vcc
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; GCN-DAG: v_fma_f64 [[FMA0:v\[[0-9]+:[0-9]+\]]], -[[SCALE0]], [[RCP_SCALE0]], 1.0
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; GCN-DAG: v_fma_f64 [[FMA1:v\[[0-9]+:[0-9]+\]]], [[RCP_SCALE0]], [[FMA0]], [[RCP_SCALE0]]
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; GCN-DAG: v_fma_f64 [[FMA2:v\[[0-9]+:[0-9]+\]]], -[[SCALE0]], [[FMA1]], 1.0
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; GCN-DAG: v_fma_f64 [[FMA3:v\[[0-9]+:[0-9]+\]]], [[FMA1]], [[FMA2]], [[FMA1]]
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; GCN-DAG: v_mul_f64 [[MUL:v\[[0-9]+:[0-9]+\]]], [[SCALE1]], [[FMA3]]
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; GCN-DAG: v_fma_f64 [[FMA4:v\[[0-9]+:[0-9]+\]]], -[[SCALE0]], [[MUL]], [[SCALE1]]
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; GCN: v_div_fmas_f64 [[FMAS:v\[[0-9]+:[0-9]+\]]], [[FMA4]], [[FMA3]], [[MUL]]
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; GCN: v_div_fixup_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], [[FMAS]], [[DEN]], [[NUM]]
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; GCN: buffer_store_dwordx2 [[RESULT]]
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; GCN: s_endpgm
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define amdgpu_kernel void @fdiv_f64(double addrspace(1)* %out, double addrspace(1)* %in) #0 {
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%gep.1 = getelementptr double, double addrspace(1)* %in, i32 1
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%num = load volatile double, double addrspace(1)* %in
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%den = load volatile double, double addrspace(1)* %gep.1
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%result = fdiv double %num, %den
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store double %result, double addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}v_fdiv_f64_afn:
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; GCN: v_rcp_f64_e32 v[4:5], v[2:3]
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; GCN: v_fma_f64 v[6:7], -v[2:3], v[4:5], 1.0
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; GCN: v_fma_f64 v[4:5], v[6:7], v[4:5], v[4:5]
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; GCN: v_fma_f64 v[6:7], -v[2:3], v[4:5], 1.0
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; GCN: v_fma_f64 v[4:5], v[6:7], v[4:5], v[4:5]
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; GCN: v_mul_f64 v[6:7], v[0:1], v[4:5]
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; GCN: v_fma_f64 v[0:1], -v[2:3], v[6:7], v[0:1]
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; GCN: v_fma_f64 v[0:1], v[0:1], v[4:5], v[6:7]
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; GCN: s_setpc_b64
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define double @v_fdiv_f64_afn(double %x, double %y) #0 {
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%result = fdiv afn double %x, %y
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ret double %result
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}
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; GCN-LABEL: {{^}}v_rcp_f64_afn:
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; GCN: v_rcp_f64_e32 v[2:3], v[0:1]
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; GCN: v_fma_f64 v[4:5], -v[0:1], v[2:3], 1.0
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; GCN: v_fma_f64 v[2:3], v[4:5], v[2:3], v[2:3]
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; GCN: v_fma_f64 v[4:5], -v[0:1], v[2:3], 1.0
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; GCN: v_fma_f64 v[2:3], v[4:5], v[2:3], v[2:3]
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; GCN: v_fma_f64 v[0:1], -v[0:1], v[2:3], 1.0
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; GCN: v_fma_f64 v[0:1], v[0:1], v[2:3], v[2:3]
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; GCN: s_setpc_b64
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define double @v_rcp_f64_afn(double %x) #0 {
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%result = fdiv afn double 1.0, %x
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ret double %result
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}
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; GCN-LABEL: {{^}}fdiv_f64_s_v:
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define amdgpu_kernel void @fdiv_f64_s_v(double addrspace(1)* %out, double addrspace(1)* %in, double %num) #0 {
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%den = load double, double addrspace(1)* %in
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%result = fdiv double %num, %den
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store double %result, double addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}fdiv_f64_v_s:
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define amdgpu_kernel void @fdiv_f64_v_s(double addrspace(1)* %out, double addrspace(1)* %in, double %den) #0 {
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%num = load double, double addrspace(1)* %in
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%result = fdiv double %num, %den
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store double %result, double addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}fdiv_f64_s_s:
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define amdgpu_kernel void @fdiv_f64_s_s(double addrspace(1)* %out, double %num, double %den) #0 {
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%result = fdiv double %num, %den
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store double %result, double addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}v_fdiv_v2f64:
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define amdgpu_kernel void @v_fdiv_v2f64(<2 x double> addrspace(1)* %out, <2 x double> addrspace(1)* %in) #0 {
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%gep.1 = getelementptr <2 x double>, <2 x double> addrspace(1)* %in, i32 1
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%num = load <2 x double>, <2 x double> addrspace(1)* %in
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%den = load <2 x double>, <2 x double> addrspace(1)* %gep.1
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%result = fdiv <2 x double> %num, %den
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store <2 x double> %result, <2 x double> addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}s_fdiv_v2f64:
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define amdgpu_kernel void @s_fdiv_v2f64(<2 x double> addrspace(1)* %out, <2 x double> %num, <2 x double> %den) {
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%result = fdiv <2 x double> %num, %den
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store <2 x double> %result, <2 x double> addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}v_fdiv_v4f64:
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define amdgpu_kernel void @v_fdiv_v4f64(<4 x double> addrspace(1)* %out, <4 x double> addrspace(1)* %in) #0 {
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%gep.1 = getelementptr <4 x double>, <4 x double> addrspace(1)* %in, i32 1
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%num = load <4 x double>, <4 x double> addrspace(1)* %in
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%den = load <4 x double>, <4 x double> addrspace(1)* %gep.1
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%result = fdiv <4 x double> %num, %den
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store <4 x double> %result, <4 x double> addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}s_fdiv_v4f64:
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define amdgpu_kernel void @s_fdiv_v4f64(<4 x double> addrspace(1)* %out, <4 x double> %num, <4 x double> %den) #0 {
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%result = fdiv <4 x double> %num, %den
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store <4 x double> %result, <4 x double> addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}div_fast_2_x_pat_f64:
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; GCN: v_mul_f64 [[MUL:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, 0.5
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; GCN: buffer_store_dwordx2 [[MUL]]
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define amdgpu_kernel void @div_fast_2_x_pat_f64(double addrspace(1)* %out) #1 {
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%x = load double, double addrspace(1)* undef
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%rcp = fdiv fast double %x, 2.0
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store double %rcp, double addrspace(1)* %out, align 4
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ret void
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}
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; GCN-LABEL: {{^}}div_fast_k_x_pat_f64:
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; GCN-DAG: s_mov_b32 s[[K_LO:[0-9]+]], 0x9999999a
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; GCN-DAG: s_mov_b32 s[[K_HI:[0-9]+]], 0x3fb99999
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; GCN: v_mul_f64 [[MUL:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[}}[[K_LO]]:[[K_HI]]{{\]}}
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; GCN: buffer_store_dwordx2 [[MUL]]
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define amdgpu_kernel void @div_fast_k_x_pat_f64(double addrspace(1)* %out) #1 {
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%x = load double, double addrspace(1)* undef
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%rcp = fdiv fast double %x, 10.0
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store double %rcp, double addrspace(1)* %out, align 4
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ret void
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}
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; GCN-LABEL: {{^}}div_fast_neg_k_x_pat_f64:
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; GCN-DAG: s_mov_b32 s[[K_LO:[0-9]+]], 0x9999999a
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; GCN-DAG: s_mov_b32 s[[K_HI:[0-9]+]], 0xbfb99999
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; GCN: v_mul_f64 [[MUL:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[}}[[K_LO]]:[[K_HI]]{{\]}}
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; GCN: buffer_store_dwordx2 [[MUL]]
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define amdgpu_kernel void @div_fast_neg_k_x_pat_f64(double addrspace(1)* %out) #1 {
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%x = load double, double addrspace(1)* undef
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%rcp = fdiv fast double %x, -10.0
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store double %rcp, double addrspace(1)* %out, align 4
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ret void
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}
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attributes #0 = { nounwind }
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attributes #1 = { nounwind "unsafe-fp-math"="true" }
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