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255 lines
12 KiB
LLVM
255 lines
12 KiB
LLVM
; XUN: llc -mtriple=amdgcn-amd-amdhsa -denormal-fp-math-f32=preserve-sign -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,SI %s
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=tonga -denormal-fp-math-f32=preserve-sign -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,VI,SIVI,VI-DENORM %s
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=tonga -denormal-fp-math=preserve-sign -denormal-fp-math-f32=preserve-sign -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,VI,SIVI,VI-FLUSH %s
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1010 -denormal-fp-math-f32=preserve-sign -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX10,GFX8_10,GFX10-DENORM %s
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; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1010 -denormal-fp-math=preserve-sign -denormal-fp-math-f32=preserve-sign -mattr=-flat-for-global -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX10,GFX8_10,GFX10-FLUSH %s
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; Make sure (fmul (fadd x, x), c) -> (fmul x, (fmul 2.0, c)) doesn't
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; make add an instruction if the fadd has more than one use.
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declare half @llvm.fabs.f16(half) #1
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declare float @llvm.fabs.f32(float) #1
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; GCN-LABEL: {{^}}multiple_fadd_use_test_f32:
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; SI: v_max_legacy_f32_e64 [[A16:v[0-9]+]],
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; SI: v_add_f32_e32 [[A17:v[0-9]+]], [[A16]], [[A16]]
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; SI: v_mul_f32_e32 [[A18:v[0-9]+]], [[A17]], [[A17]]
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; SI: v_mad_f32 [[A20:v[0-9]+]], -[[A18]], [[A17]], 1.0
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; SI: buffer_store_dword [[A20]]
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; GFX8_10: v_add_f32_e64 v{{[0-9]+}}, s{{[0-9]+}}, -1.0
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; GFX8_10: v_add_f32_e64 v{{[0-9]+}}, s{{[0-9]+}}, -1.0
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; GFX8_10: v_cmp_gt_f32_e64 {{vcc|vcc_lo}}, |v{{[0-9]+}}|, |v{{[0-9]+}}|
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; GFX8_10: v_cndmask_b32_e32
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; GFX8_10: v_add_f32_e64 v{{[0-9]+}}, |v{{[0-9]+}}|, |v{{[0-9]+}}|
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; GFX8_10: v_mul_f32_e32 v{{[0-9]+}}, v{{[0-9]+}}, v{{[0-9]+}}
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; VI: v_mad_f32 v{{[0-9]+}}, -v{{[0-9]+}}, v{{[0-9]+}}, 1.0
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; GFX10: v_fma_f32 v{{[0-9]+}}, -v{{[0-9]+}}, v{{[0-9]+}}, 1.0
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define amdgpu_kernel void @multiple_fadd_use_test_f32(float addrspace(1)* %out, float %x, float %y, float %z) #0 {
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%a11 = fadd float %y, -1.0
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%a12 = call float @llvm.fabs.f32(float %a11)
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%a13 = fadd float %x, -1.0
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%a14 = call float @llvm.fabs.f32(float %a13)
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%a15 = fcmp ogt float %a12, %a14
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%a16 = select i1 %a15, float %a12, float %a14
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%a17 = fmul float %a16, 2.0
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%a18 = fmul float %a17, %a17
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%a19 = fmul float %a18, %a17
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%a20 = fsub float 1.0, %a19
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store float %a20, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}multiple_use_fadd_fmac_f32:
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; GCN-DAG: v_add_f32_e64 [[MUL2:v[0-9]+]], [[X:s[0-9]+]], s{{[0-9]+}}
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; SIVI-DAG: v_mac_f32_e64 [[MAD:v[0-9]+]], [[X]], 2.0
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; GFX10-DAG: v_fma_f32 [[MAD:v[0-9]+]], [[X]], 2.0, s{{[0-9]+}}
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; GCN-DAG: buffer_store_dword [[MUL2]]
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; GCN-DAG: buffer_store_dword [[MAD]]
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; GCN: s_endpgm
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define amdgpu_kernel void @multiple_use_fadd_fmac_f32(float addrspace(1)* %out, float %x, [8 x i32], float %y) #0 {
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%out.gep.1 = getelementptr float, float addrspace(1)* %out, i32 1
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%mul2 = fmul fast float %x, 2.0
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%mad = fadd fast float %mul2, %y
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store volatile float %mul2, float addrspace(1)* %out
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store volatile float %mad, float addrspace(1)* %out.gep.1
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ret void
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}
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; GCN-LABEL: {{^}}multiple_use_fadd_fmad_f32:
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; GCN-DAG: v_add_f32_e64 [[MUL2:v[0-9]+]], |[[X:s[0-9]+]]|, |s{{[0-9]+}}|
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; SIVI-DAG: v_mad_f32 [[MAD:v[0-9]+]], |[[X]]|, 2.0, v{{[0-9]+}}
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; GFX10-DAG: v_fma_f32 [[MAD:v[0-9]+]], |[[X]]|, 2.0, s{{[0-9]+}}
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; GCN-DAG: buffer_store_dword [[MUL2]]
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; GCN-DAG: buffer_store_dword [[MAD]]
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; GCN: s_endpgm
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define amdgpu_kernel void @multiple_use_fadd_fmad_f32(float addrspace(1)* %out, float %x, float %y) #0 {
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%out.gep.1 = getelementptr float, float addrspace(1)* %out, i32 1
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%x.abs = call float @llvm.fabs.f32(float %x)
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%mul2 = fmul fast float %x.abs, 2.0
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%mad = fadd fast float %mul2, %y
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store volatile float %mul2, float addrspace(1)* %out
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store volatile float %mad, float addrspace(1)* %out.gep.1
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ret void
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}
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; GCN-LABEL: {{^}}multiple_use_fadd_multi_fmad_f32:
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; SIVI: v_mad_f32 {{v[0-9]+}}, |[[X:s[0-9]+]]|, 2.0, v{{[0-9]+}}
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; SIVI: v_mad_f32 {{v[0-9]+}}, |[[X]]|, 2.0, v{{[0-9]+}}
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; GFX10: v_fma_f32 {{v[0-9]+}}, |[[X:s[0-9]+]]|, 2.0, {{s[0-9]+}}
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; GFX10: v_fma_f32 {{v[0-9]+}}, |[[X]]|, 2.0, {{s[0-9]+}}
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define amdgpu_kernel void @multiple_use_fadd_multi_fmad_f32(float addrspace(1)* %out, float %x, float %y, float %z) #0 {
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%out.gep.1 = getelementptr float, float addrspace(1)* %out, i32 1
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%x.abs = call float @llvm.fabs.f32(float %x)
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%mul2 = fmul fast float %x.abs, 2.0
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%mad0 = fadd fast float %mul2, %y
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%mad1 = fadd fast float %mul2, %z
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store volatile float %mad0, float addrspace(1)* %out
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store volatile float %mad1, float addrspace(1)* %out.gep.1
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ret void
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}
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; GCN-LABEL: {{^}}fmul_x2_xn2_f32:
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; GCN: v_mul_f32_e64 [[TMP0:v[0-9]+]], [[X:s[0-9]+]], -4.0
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; GCN: v_mul_f32_e32 [[RESULT:v[0-9]+]], [[X]], [[TMP0]]
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; GCN: buffer_store_dword [[RESULT]]
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define amdgpu_kernel void @fmul_x2_xn2_f32(float addrspace(1)* %out, float %x, float %y) #0 {
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%out.gep.1 = getelementptr float, float addrspace(1)* %out, i32 1
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%mul2 = fmul fast float %x, 2.0
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%muln2 = fmul fast float %x, -2.0
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%mul = fmul fast float %mul2, %muln2
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store volatile float %mul, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}fmul_x2_xn3_f32:
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; SIVI: v_mov_b32_e32 [[K:v[0-9]+]], 0xc0c00000
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; SIVI: v_mul_f32_e32 [[TMP0:v[0-9]+]], [[X:s[0-9]+]], [[K]]
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; GFX10: v_mul_f32_e64 [[TMP0:v[0-9]+]], 0xc0c00000, [[X:s[0-9]+]]
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; GCN: v_mul_f32_e32 [[RESULT:v[0-9]+]], [[X]], [[TMP0]]
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; GCN: buffer_store_dword [[RESULT]]
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define amdgpu_kernel void @fmul_x2_xn3_f32(float addrspace(1)* %out, float %x, float %y) #0 {
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%out.gep.1 = getelementptr float, float addrspace(1)* %out, i32 1
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%mul2 = fmul fast float %x, 2.0
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%muln2 = fmul fast float %x, -3.0
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%mul = fmul fast float %mul2, %muln2
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store volatile float %mul, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}multiple_fadd_use_test_f16:
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; GFX8_10: v_add_f16_e64 v{{[0-9]+}}, s{{[0-9]+}}, -1.0
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; GFX8_10: v_add_f16_e64 v{{[0-9]+}}, s{{[0-9]+}}, -1.0
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; GFX8_10: v_cmp_gt_f16_e64 {{vcc|vcc_lo}}, |v{{[0-9]+}}|, |v{{[0-9]+}}|
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; GFX8_10: v_cndmask_b32_e32
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; GFX8_10: v_add_f16_e64 v{{[0-9]+}}, |v{{[0-9]+}}|, |v{{[0-9]+}}|
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; GFX8_10: v_mul_f16_e32 v{{[0-9]+}}, v{{[0-9]+}}, v{{[0-9]+}}
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; VI-FLUSH: v_mad_f16 v{{[0-9]+}}, -v{{[0-9]+}}, v{{[0-9]+}}, 1.0
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; VI-DENORM: v_fma_f16 v{{[0-9]+}}, -v{{[0-9]+}}, v{{[0-9]+}}, 1.0
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; GFX10-DENORM: v_fma_f16 v{{[0-9]+}}, -v{{[0-9]+}}, v{{[0-9]+}}, 1.0
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; GFX10-FLUSH: v_sub_f16_e32 v{{[0-9]+}}, 1.0, v{{[0-9]+}}
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define amdgpu_kernel void @multiple_fadd_use_test_f16(half addrspace(1)* %out, i16 zeroext %x.arg, i16 zeroext %y.arg, i16 zeroext %z.arg) #0 {
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%x = bitcast i16 %x.arg to half
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%y = bitcast i16 %y.arg to half
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%z = bitcast i16 %z.arg to half
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%a11 = fadd half %y, -1.0
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%a12 = call half @llvm.fabs.f16(half %a11)
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%a13 = fadd half %x, -1.0
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%a14 = call half @llvm.fabs.f16(half %a13)
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%a15 = fcmp ogt half %a12, %a14
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%a16 = select i1 %a15, half %a12, half %a14
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%a17 = fmul half %a16, 2.0
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%a18 = fmul half %a17, %a17
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%a19 = fmul half %a18, %a17
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%a20 = fsub half 1.0, %a19
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store half %a20, half addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}multiple_use_fadd_fmac_f16:
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; GCN-DAG: v_add_f16_e64 [[MUL2:v[0-9]+]], [[X:s[0-9]+]], s{{[0-9]+}}
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; VI-FLUSH-DAG: v_mac_f16_e64 [[MAD:v[0-9]+]], [[X]], 2.0
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; VI-DENORM-DAG: v_fma_f16 [[MAD:v[0-9]+]], [[X]], 2.0, v{{[0-9]+}}
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; GFX10-FLUSH-DAG: v_add_f16_e32 [[MAD:v[0-9]+]], s{{[0-9]+}}, [[MUL2]]
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; GFX10-DENORM-DAG: v_fma_f16 [[MAD:v[0-9]+]], [[X]], 2.0, s{{[0-9]+}}
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; GCN-DAG: buffer_store_short [[MUL2]]
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; GCN-DAG: buffer_store_short [[MAD]]
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; GCN: s_endpgm
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define amdgpu_kernel void @multiple_use_fadd_fmac_f16(half addrspace(1)* %out, i16 zeroext %x.arg, i16 zeroext %y.arg) #0 {
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%x = bitcast i16 %x.arg to half
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%y = bitcast i16 %y.arg to half
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%out.gep.1 = getelementptr half, half addrspace(1)* %out, i32 1
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%mul2 = fmul fast half %x, 2.0
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%mad = fadd fast half %mul2, %y
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store volatile half %mul2, half addrspace(1)* %out
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store volatile half %mad, half addrspace(1)* %out.gep.1
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ret void
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}
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; GCN-LABEL: {{^}}multiple_use_fadd_fmad_f16:
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; GCN-DAG: v_add_f16_e64 [[MUL2:v[0-9]+]], |[[X:s[0-9]+]]|, |s{{[0-9]+}}|
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; VI-FLUSH-DAG: v_mad_f16 [[MAD:v[0-9]+]], |[[X]]|, 2.0, v{{[0-9]+}}
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; VI-DENORM-DAG: v_fma_f16 [[MAD:v[0-9]+]], |[[X]]|, 2.0, v{{[0-9]+}}
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; GFX10-FLUSH-DAG: v_add_f16_e32 [[MAD:v[0-9]+]], s{{[0-9]+}}, [[MUL2]]
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; GFX10-DENORM-DAG: v_fma_f16 [[MAD:v[0-9]+]], |[[X]]|, 2.0, s{{[0-9]+}}
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; GCN-DAG: buffer_store_short [[MUL2]]
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; GCN-DAG: buffer_store_short [[MAD]]
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; GCN: s_endpgm
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define amdgpu_kernel void @multiple_use_fadd_fmad_f16(half addrspace(1)* %out, i16 zeroext %x.arg, i16 zeroext %y.arg) #0 {
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%x = bitcast i16 %x.arg to half
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%y = bitcast i16 %y.arg to half
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%out.gep.1 = getelementptr half, half addrspace(1)* %out, i32 1
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%x.abs = call half @llvm.fabs.f16(half %x)
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%mul2 = fmul fast half %x.abs, 2.0
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%mad = fadd fast half %mul2, %y
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store volatile half %mul2, half addrspace(1)* %out
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store volatile half %mad, half addrspace(1)* %out.gep.1
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ret void
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}
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; GCN-LABEL: {{^}}multiple_use_fadd_multi_fmad_f16:
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; VI-FLUSH: v_mad_f16 {{v[0-9]+}}, |[[X:s[0-9]+]]|, 2.0, v{{[0-9]+}}
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; VI-FLUSH: v_mad_f16 {{v[0-9]+}}, |[[X]]|, 2.0, v{{[0-9]+}}
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; VI-DENORM: v_fma_f16 {{v[0-9]+}}, |[[X:s[0-9]+]]|, 2.0, v{{[0-9]+}}
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; VI-DENORM: v_fma_f16 {{v[0-9]+}}, |[[X]]|, 2.0, v{{[0-9]+}}
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; GFX10-FLUSH: v_add_f16_e64 [[MUL2:v[0-9]+]], |[[X:s[0-9]+]]|, |{{s[0-9]+}}|
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; GFX10-FLUSH: v_add_f16_e32 {{v[0-9]+}}, {{s[0-9]+}}, [[MUL2]]
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; GFX10-FLUSH: v_add_f16_e32 {{v[0-9]+}}, {{s[0-9]+}}, [[MUL2]]
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; GFX10-DENORM: v_fma_f16 {{v[0-9]+}}, |[[X:s[0-9]+]]|, 2.0, s{{[0-9]+}}
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; GFX10-DENORM: v_fma_f16 {{v[0-9]+}}, |[[X]]|, 2.0, s{{[0-9]+}}
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define amdgpu_kernel void @multiple_use_fadd_multi_fmad_f16(half addrspace(1)* %out, i16 zeroext %x.arg, i16 zeroext %y.arg, i16 zeroext %z.arg) #0 {
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%x = bitcast i16 %x.arg to half
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%y = bitcast i16 %y.arg to half
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%z = bitcast i16 %z.arg to half
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%out.gep.1 = getelementptr half, half addrspace(1)* %out, i32 1
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%x.abs = call half @llvm.fabs.f16(half %x)
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%mul2 = fmul fast half %x.abs, 2.0
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%mad0 = fadd fast half %mul2, %y
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%mad1 = fadd fast half %mul2, %z
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store volatile half %mad0, half addrspace(1)* %out
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store volatile half %mad1, half addrspace(1)* %out.gep.1
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ret void
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}
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; GCN-LABEL: {{^}}fmul_x2_xn2_f16:
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; GCN: v_mul_f16_e64 [[TMP0:v[0-9]+]], [[X:s[0-9]+]], -4.0
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; GCN: v_mul_f16_e32 [[RESULT:v[0-9]+]], [[X]], [[TMP0]]
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; GCN: buffer_store_short [[RESULT]]
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define amdgpu_kernel void @fmul_x2_xn2_f16(half addrspace(1)* %out, i16 zeroext %x.arg, i16 zeroext %y.arg) #0 {
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%x = bitcast i16 %x.arg to half
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%y = bitcast i16 %y.arg to half
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%out.gep.1 = getelementptr half, half addrspace(1)* %out, i32 1
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%mul2 = fmul fast half %x, 2.0
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%muln2 = fmul fast half %x, -2.0
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%mul = fmul fast half %mul2, %muln2
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store volatile half %mul, half addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}fmul_x2_xn3_f16:
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; SIVI: v_mov_b32_e32 [[K:v[0-9]+]], 0xc600
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; SIVI: v_mul_f16_e32 [[TMP0:v[0-9]+]], [[X:s[0-9]+]], [[K]]
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; GFX10: v_mul_f16_e64 [[TMP0:v[0-9]+]], 0xc600, [[X:s[0-9]+]]
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; GCN: v_mul_f16_e32 [[RESULT:v[0-9]+]], [[X]], [[TMP0]]
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; GCN: buffer_store_short [[RESULT]]
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define amdgpu_kernel void @fmul_x2_xn3_f16(half addrspace(1)* %out, i16 zeroext %x.arg, i16 zeroext %y.arg) #0 {
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%x = bitcast i16 %x.arg to half
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%y = bitcast i16 %y.arg to half
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%out.gep.1 = getelementptr half, half addrspace(1)* %out, i32 1
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%mul2 = fmul fast half %x, 2.0
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%muln2 = fmul fast half %x, -3.0
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%mul = fmul fast half %mul2, %muln2
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store volatile half %mul, half addrspace(1)* %out
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ret void
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}
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attributes #0 = { nounwind "unsafe-fp-math"="true" }
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attributes #1 = { nounwind readnone }
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