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llvm-mirror/test/CodeGen/AMDGPU/fma-combine.ll
Matt Arsenault d9c8715837 AMDGPU: Fix -enable-var-scope violations 
llvm-svn: 318004
2017-11-12 23:53:44 +00:00

678 lines
34 KiB
LLVM
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; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=tahiti -verify-machineinstrs -fp-contract=fast < %s | FileCheck -enable-var-scope -check-prefix=SI-NOFMA -check-prefix=SI-SAFE -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=verde -verify-machineinstrs -fp-contract=fast < %s | FileCheck -enable-var-scope -check-prefix=SI-NOFMA -check-prefix=SI-SAFE -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -amdgpu-scalarize-global-loads=false -march=amdgcn -mcpu=tahiti -verify-machineinstrs -fp-contract=fast -enable-no-infs-fp-math -enable-unsafe-fp-math -mattr=+fp32-denormals < %s | FileCheck -enable-var-scope -check-prefix=SI-FMA -check-prefix=SI-UNSAFE -check-prefix=SI -check-prefix=FUNC %s
; Note: The SI-FMA conversions of type x * (y + 1) --> x * y + x would be
; beneficial even without fp32 denormals, but they do require no-infs-fp-math
; for correctness.
declare i32 @llvm.amdgcn.workitem.id.x() #0
declare double @llvm.fabs.f64(double) #0
declare double @llvm.fma.f64(double, double, double) #0
declare float @llvm.fma.f32(float, float, float) #0
; (fadd (fmul x, y), z) -> (fma x, y, z)
; FUNC-LABEL: {{^}}combine_to_fma_f64_0:
; SI-DAG: buffer_load_dwordx2 [[A:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_load_dwordx2 [[B:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI-DAG: buffer_load_dwordx2 [[C:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:16{{$}}
; SI: v_fma_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], [[A]], [[B]], [[C]]
; SI: buffer_store_dwordx2 [[RESULT]]
define amdgpu_kernel void @combine_to_fma_f64_0(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
%tid = tail call i32 @llvm.amdgcn.workitem.id.x() #0
%gep.0 = getelementptr double, double addrspace(1)* %in, i32 %tid
%gep.1 = getelementptr double, double addrspace(1)* %gep.0, i32 1
%gep.2 = getelementptr double, double addrspace(1)* %gep.0, i32 2
%gep.out = getelementptr double, double addrspace(1)* %out, i32 %tid
%a = load volatile double, double addrspace(1)* %gep.0
%b = load volatile double, double addrspace(1)* %gep.1
%c = load volatile double, double addrspace(1)* %gep.2
%mul = fmul double %a, %b
%fma = fadd double %mul, %c
store double %fma, double addrspace(1)* %gep.out
ret void
}
; (fadd (fmul x, y), z) -> (fma x, y, z)
; FUNC-LABEL: {{^}}combine_to_fma_f64_0_2use:
; SI-DAG: buffer_load_dwordx2 [[A:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_load_dwordx2 [[B:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI-DAG: buffer_load_dwordx2 [[C:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:16{{$}}
; SI-DAG: buffer_load_dwordx2 [[D:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:24{{$}}
; SI-DAG: v_fma_f64 [[RESULT0:v\[[0-9]+:[0-9]+\]]], [[A]], [[B]], [[C]]
; SI-DAG: v_fma_f64 [[RESULT1:v\[[0-9]+:[0-9]+\]]], [[A]], [[B]], [[D]]
; SI-DAG: buffer_store_dwordx2 [[RESULT0]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_store_dwordx2 [[RESULT1]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI: s_endpgm
define amdgpu_kernel void @combine_to_fma_f64_0_2use(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
%tid = tail call i32 @llvm.amdgcn.workitem.id.x() #0
%gep.0 = getelementptr double, double addrspace(1)* %in, i32 %tid
%gep.1 = getelementptr double, double addrspace(1)* %gep.0, i32 1
%gep.2 = getelementptr double, double addrspace(1)* %gep.0, i32 2
%gep.3 = getelementptr double, double addrspace(1)* %gep.0, i32 3
%gep.out.0 = getelementptr double, double addrspace(1)* %out, i32 %tid
%gep.out.1 = getelementptr double, double addrspace(1)* %gep.out.0, i32 1
%a = load volatile double, double addrspace(1)* %gep.0
%b = load volatile double, double addrspace(1)* %gep.1
%c = load volatile double, double addrspace(1)* %gep.2
%d = load volatile double, double addrspace(1)* %gep.3
%mul = fmul double %a, %b
%fma0 = fadd double %mul, %c
%fma1 = fadd double %mul, %d
store volatile double %fma0, double addrspace(1)* %gep.out.0
store volatile double %fma1, double addrspace(1)* %gep.out.1
ret void
}
; (fadd x, (fmul y, z)) -> (fma y, z, x)
; FUNC-LABEL: {{^}}combine_to_fma_f64_1:
; SI-DAG: buffer_load_dwordx2 [[A:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_load_dwordx2 [[B:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI-DAG: buffer_load_dwordx2 [[C:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:16{{$}}
; SI: v_fma_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], [[A]], [[B]], [[C]]
; SI: buffer_store_dwordx2 [[RESULT]]
define amdgpu_kernel void @combine_to_fma_f64_1(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
%tid = tail call i32 @llvm.amdgcn.workitem.id.x() #0
%gep.0 = getelementptr double, double addrspace(1)* %in, i32 %tid
%gep.1 = getelementptr double, double addrspace(1)* %gep.0, i32 1
%gep.2 = getelementptr double, double addrspace(1)* %gep.0, i32 2
%gep.out = getelementptr double, double addrspace(1)* %out, i32 %tid
%a = load volatile double, double addrspace(1)* %gep.0
%b = load volatile double, double addrspace(1)* %gep.1
%c = load volatile double, double addrspace(1)* %gep.2
%mul = fmul double %a, %b
%fma = fadd double %c, %mul
store double %fma, double addrspace(1)* %gep.out
ret void
}
; (fsub (fmul x, y), z) -> (fma x, y, (fneg z))
; FUNC-LABEL: {{^}}combine_to_fma_fsub_0_f64:
; SI-DAG: buffer_load_dwordx2 [[A:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_load_dwordx2 [[B:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI-DAG: buffer_load_dwordx2 [[C:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:16{{$}}
; SI: v_fma_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], [[A]], [[B]], -[[C]]
; SI: buffer_store_dwordx2 [[RESULT]]
define amdgpu_kernel void @combine_to_fma_fsub_0_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
%tid = tail call i32 @llvm.amdgcn.workitem.id.x() #0
%gep.0 = getelementptr double, double addrspace(1)* %in, i32 %tid
%gep.1 = getelementptr double, double addrspace(1)* %gep.0, i32 1
%gep.2 = getelementptr double, double addrspace(1)* %gep.0, i32 2
%gep.out = getelementptr double, double addrspace(1)* %out, i32 %tid
%a = load volatile double, double addrspace(1)* %gep.0
%b = load volatile double, double addrspace(1)* %gep.1
%c = load volatile double, double addrspace(1)* %gep.2
%mul = fmul double %a, %b
%fma = fsub double %mul, %c
store double %fma, double addrspace(1)* %gep.out
ret void
}
; (fsub (fmul x, y), z) -> (fma x, y, (fneg z))
; FUNC-LABEL: {{^}}combine_to_fma_fsub_f64_0_2use:
; SI-DAG: buffer_load_dwordx2 [[A:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_load_dwordx2 [[B:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI-DAG: buffer_load_dwordx2 [[C:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:16{{$}}
; SI-DAG: buffer_load_dwordx2 [[D:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:24{{$}}
; SI-DAG: v_fma_f64 [[RESULT0:v\[[0-9]+:[0-9]+\]]], [[A]], [[B]], -[[C]]
; SI-DAG: v_fma_f64 [[RESULT1:v\[[0-9]+:[0-9]+\]]], [[A]], [[B]], -[[D]]
; SI-DAG: buffer_store_dwordx2 [[RESULT0]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_store_dwordx2 [[RESULT1]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI: s_endpgm
define amdgpu_kernel void @combine_to_fma_fsub_f64_0_2use(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
%tid = tail call i32 @llvm.amdgcn.workitem.id.x() #0
%gep.0 = getelementptr double, double addrspace(1)* %in, i32 %tid
%gep.1 = getelementptr double, double addrspace(1)* %gep.0, i32 1
%gep.2 = getelementptr double, double addrspace(1)* %gep.0, i32 2
%gep.3 = getelementptr double, double addrspace(1)* %gep.0, i32 3
%gep.out.0 = getelementptr double, double addrspace(1)* %out, i32 %tid
%gep.out.1 = getelementptr double, double addrspace(1)* %gep.out.0, i32 1
%a = load volatile double, double addrspace(1)* %gep.0
%b = load volatile double, double addrspace(1)* %gep.1
%c = load volatile double, double addrspace(1)* %gep.2
%d = load volatile double, double addrspace(1)* %gep.3
%mul = fmul double %a, %b
%fma0 = fsub double %mul, %c
%fma1 = fsub double %mul, %d
store volatile double %fma0, double addrspace(1)* %gep.out.0
store volatile double %fma1, double addrspace(1)* %gep.out.1
ret void
}
; (fsub x, (fmul y, z)) -> (fma (fneg y), z, x)
; FUNC-LABEL: {{^}}combine_to_fma_fsub_1_f64:
; SI-DAG: buffer_load_dwordx2 [[A:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_load_dwordx2 [[B:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI-DAG: buffer_load_dwordx2 [[C:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:16{{$}}
; SI: v_fma_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], -[[A]], [[B]], [[C]]
; SI: buffer_store_dwordx2 [[RESULT]]
define amdgpu_kernel void @combine_to_fma_fsub_1_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
%tid = tail call i32 @llvm.amdgcn.workitem.id.x() #0
%gep.0 = getelementptr double, double addrspace(1)* %in, i32 %tid
%gep.1 = getelementptr double, double addrspace(1)* %gep.0, i32 1
%gep.2 = getelementptr double, double addrspace(1)* %gep.0, i32 2
%gep.out = getelementptr double, double addrspace(1)* %out, i32 %tid
%a = load volatile double, double addrspace(1)* %gep.0
%b = load volatile double, double addrspace(1)* %gep.1
%c = load volatile double, double addrspace(1)* %gep.2
%mul = fmul double %a, %b
%fma = fsub double %c, %mul
store double %fma, double addrspace(1)* %gep.out
ret void
}
; (fsub x, (fmul y, z)) -> (fma (fneg y), z, x)
; FUNC-LABEL: {{^}}combine_to_fma_fsub_1_f64_2use:
; SI-DAG: buffer_load_dwordx2 [[A:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_load_dwordx2 [[B:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI-DAG: buffer_load_dwordx2 [[C:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:16{{$}}
; SI-DAG: buffer_load_dwordx2 [[D:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:24{{$}}
; SI-DAG: v_fma_f64 [[RESULT0:v\[[0-9]+:[0-9]+\]]], -[[A]], [[B]], [[C]]
; SI-DAG: v_fma_f64 [[RESULT1:v\[[0-9]+:[0-9]+\]]], -[[A]], [[B]], [[D]]
; SI-DAG: buffer_store_dwordx2 [[RESULT0]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_store_dwordx2 [[RESULT1]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI: s_endpgm
define amdgpu_kernel void @combine_to_fma_fsub_1_f64_2use(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
%tid = tail call i32 @llvm.amdgcn.workitem.id.x() #0
%gep.0 = getelementptr double, double addrspace(1)* %in, i32 %tid
%gep.1 = getelementptr double, double addrspace(1)* %gep.0, i32 1
%gep.2 = getelementptr double, double addrspace(1)* %gep.0, i32 2
%gep.3 = getelementptr double, double addrspace(1)* %gep.0, i32 3
%gep.out.0 = getelementptr double, double addrspace(1)* %out, i32 %tid
%gep.out.1 = getelementptr double, double addrspace(1)* %gep.out.0, i32 1
%a = load volatile double, double addrspace(1)* %gep.0
%b = load volatile double, double addrspace(1)* %gep.1
%c = load volatile double, double addrspace(1)* %gep.2
%d = load volatile double, double addrspace(1)* %gep.3
%mul = fmul double %a, %b
%fma0 = fsub double %c, %mul
%fma1 = fsub double %d, %mul
store volatile double %fma0, double addrspace(1)* %gep.out.0
store volatile double %fma1, double addrspace(1)* %gep.out.1
ret void
}
; (fsub (fneg (fmul x, y)), z) -> (fma (fneg x), y, (fneg z))
; FUNC-LABEL: {{^}}combine_to_fma_fsub_2_f64:
; SI-DAG: buffer_load_dwordx2 [[A:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_load_dwordx2 [[B:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI-DAG: buffer_load_dwordx2 [[C:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:16{{$}}
; SI: v_fma_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], -[[A]], [[B]], -[[C]]
; SI: buffer_store_dwordx2 [[RESULT]]
define amdgpu_kernel void @combine_to_fma_fsub_2_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
%tid = tail call i32 @llvm.amdgcn.workitem.id.x() #0
%gep.0 = getelementptr double, double addrspace(1)* %in, i32 %tid
%gep.1 = getelementptr double, double addrspace(1)* %gep.0, i32 1
%gep.2 = getelementptr double, double addrspace(1)* %gep.0, i32 2
%gep.out = getelementptr double, double addrspace(1)* %out, i32 %tid
%a = load volatile double, double addrspace(1)* %gep.0
%b = load volatile double, double addrspace(1)* %gep.1
%c = load volatile double, double addrspace(1)* %gep.2
%mul = fmul double %a, %b
%mul.neg = fsub double -0.0, %mul
%fma = fsub double %mul.neg, %c
store double %fma, double addrspace(1)* %gep.out
ret void
}
; (fsub (fneg (fmul x, y)), z) -> (fma (fneg x), y, (fneg z))
; FUNC-LABEL: {{^}}combine_to_fma_fsub_2_f64_2uses_neg:
; SI-DAG: buffer_load_dwordx2 [[A:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_load_dwordx2 [[B:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI-DAG: buffer_load_dwordx2 [[C:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:16{{$}}
; SI-DAG: buffer_load_dwordx2 [[D:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:24{{$}}
; SI-DAG: v_fma_f64 [[RESULT0:v\[[0-9]+:[0-9]+\]]], -[[A]], [[B]], -[[C]]
; SI-DAG: v_fma_f64 [[RESULT1:v\[[0-9]+:[0-9]+\]]], -[[A]], [[B]], -[[D]]
; SI-DAG: buffer_store_dwordx2 [[RESULT0]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_store_dwordx2 [[RESULT1]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI: s_endpgm
define amdgpu_kernel void @combine_to_fma_fsub_2_f64_2uses_neg(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
%tid = tail call i32 @llvm.amdgcn.workitem.id.x() #0
%gep.0 = getelementptr double, double addrspace(1)* %in, i32 %tid
%gep.1 = getelementptr double, double addrspace(1)* %gep.0, i32 1
%gep.2 = getelementptr double, double addrspace(1)* %gep.0, i32 2
%gep.3 = getelementptr double, double addrspace(1)* %gep.0, i32 3
%gep.out.0 = getelementptr double, double addrspace(1)* %out, i32 %tid
%gep.out.1 = getelementptr double, double addrspace(1)* %gep.out.0, i32 1
%a = load volatile double, double addrspace(1)* %gep.0
%b = load volatile double, double addrspace(1)* %gep.1
%c = load volatile double, double addrspace(1)* %gep.2
%d = load volatile double, double addrspace(1)* %gep.3
%mul = fmul double %a, %b
%mul.neg = fsub double -0.0, %mul
%fma0 = fsub double %mul.neg, %c
%fma1 = fsub double %mul.neg, %d
store volatile double %fma0, double addrspace(1)* %gep.out.0
store volatile double %fma1, double addrspace(1)* %gep.out.1
ret void
}
; (fsub (fneg (fmul x, y)), z) -> (fma (fneg x), y, (fneg z))
; FUNC-LABEL: {{^}}combine_to_fma_fsub_2_f64_2uses_mul:
; SI-DAG: buffer_load_dwordx2 [[A:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_load_dwordx2 [[B:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI-DAG: buffer_load_dwordx2 [[C:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:16{{$}}
; SI-DAG: buffer_load_dwordx2 [[D:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:24{{$}}
; SI-DAG: v_fma_f64 [[RESULT0:v\[[0-9]+:[0-9]+\]]], -[[A]], [[B]], -[[C]]
; SI-DAG: v_fma_f64 [[RESULT1:v\[[0-9]+:[0-9]+\]]], [[A]], [[B]], -[[D]]
; SI-DAG: buffer_store_dwordx2 [[RESULT0]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_store_dwordx2 [[RESULT1]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI: s_endpgm
define amdgpu_kernel void @combine_to_fma_fsub_2_f64_2uses_mul(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
%tid = tail call i32 @llvm.amdgcn.workitem.id.x() #0
%gep.0 = getelementptr double, double addrspace(1)* %in, i32 %tid
%gep.1 = getelementptr double, double addrspace(1)* %gep.0, i32 1
%gep.2 = getelementptr double, double addrspace(1)* %gep.0, i32 2
%gep.3 = getelementptr double, double addrspace(1)* %gep.0, i32 3
%gep.out.0 = getelementptr double, double addrspace(1)* %out, i32 %tid
%gep.out.1 = getelementptr double, double addrspace(1)* %gep.out.0, i32 1
%a = load volatile double, double addrspace(1)* %gep.0
%b = load volatile double, double addrspace(1)* %gep.1
%c = load volatile double, double addrspace(1)* %gep.2
%d = load volatile double, double addrspace(1)* %gep.3
%mul = fmul double %a, %b
%mul.neg = fsub double -0.0, %mul
%fma0 = fsub double %mul.neg, %c
%fma1 = fsub double %mul, %d
store volatile double %fma0, double addrspace(1)* %gep.out.0
store volatile double %fma1, double addrspace(1)* %gep.out.1
ret void
}
; fold (fsub (fma x, y, (fmul u, v)), z) -> (fma x, y (fma u, v, (fneg z)))
; FUNC-LABEL: {{^}}aggressive_combine_to_fma_fsub_0_f64:
; SI-DAG: buffer_load_dwordx2 [[X:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_load_dwordx2 [[Y:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI-DAG: buffer_load_dwordx2 [[Z:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:16{{$}}
; SI-DAG: buffer_load_dwordx2 [[U:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:24{{$}}
; SI-DAG: buffer_load_dwordx2 [[V:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:32{{$}}
; SI-SAFE: v_mul_f64 [[TMP0:v\[[0-9]+:[0-9]+\]]], [[U]], [[V]]
; SI-SAFE: v_fma_f64 [[TMP1:v\[[0-9]+:[0-9]+\]]], [[X]], [[Y]], [[TMP0]]
; SI-SAFE: v_add_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], [[TMP1]], -[[Z]]
; SI-UNSAFE: v_fma_f64 [[FMA0:v\[[0-9]+:[0-9]+\]]], [[U]], [[V]], -[[Z]]
; SI-UNSAFE: v_fma_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], [[X]], [[Y]], [[FMA0]]
; SI: buffer_store_dwordx2 [[RESULT]]
define amdgpu_kernel void @aggressive_combine_to_fma_fsub_0_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
%tid = tail call i32 @llvm.amdgcn.workitem.id.x() #0
%gep.0 = getelementptr double, double addrspace(1)* %in, i32 %tid
%gep.1 = getelementptr double, double addrspace(1)* %gep.0, i32 1
%gep.2 = getelementptr double, double addrspace(1)* %gep.0, i32 2
%gep.3 = getelementptr double, double addrspace(1)* %gep.0, i32 3
%gep.4 = getelementptr double, double addrspace(1)* %gep.0, i32 4
%gep.out = getelementptr double, double addrspace(1)* %out, i32 %tid
%x = load volatile double, double addrspace(1)* %gep.0
%y = load volatile double, double addrspace(1)* %gep.1
%z = load volatile double, double addrspace(1)* %gep.2
%u = load volatile double, double addrspace(1)* %gep.3
%v = load volatile double, double addrspace(1)* %gep.4
%tmp0 = fmul double %u, %v
%tmp1 = call double @llvm.fma.f64(double %x, double %y, double %tmp0) #0
%tmp2 = fsub double %tmp1, %z
store double %tmp2, double addrspace(1)* %gep.out
ret void
}
; fold (fsub x, (fma y, z, (fmul u, v)))
; -> (fma (fneg y), z, (fma (fneg u), v, x))
; FUNC-LABEL: {{^}}aggressive_combine_to_fma_fsub_1_f64:
; SI-DAG: buffer_load_dwordx2 [[X:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64{{$}}
; SI-DAG: buffer_load_dwordx2 [[Y:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:8{{$}}
; SI-DAG: buffer_load_dwordx2 [[Z:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:16{{$}}
; SI-DAG: buffer_load_dwordx2 [[U:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:24{{$}}
; SI-DAG: buffer_load_dwordx2 [[V:v\[[0-9]+:[0-9]+\]]], v{{\[[0-9]+:[0-9]+\]}}, s{{\[[0-9]+:[0-9]+\]}}, 0 addr64 offset:32{{$}}
; SI-SAFE: v_mul_f64 [[TMP0:v\[[0-9]+:[0-9]+\]]], [[U]], [[V]]
; SI-SAFE: v_fma_f64 [[TMP1:v\[[0-9]+:[0-9]+\]]], [[Y]], [[Z]], [[TMP0]]
; SI-SAFE: v_add_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], [[X]], -[[TMP1]]
; SI-UNSAFE: v_fma_f64 [[FMA0:v\[[0-9]+:[0-9]+\]]], -[[U]], [[V]], [[X]]
; SI-UNSAFE: v_fma_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], -[[Y]], [[Z]], [[FMA0]]
; SI: buffer_store_dwordx2 [[RESULT]]
define amdgpu_kernel void @aggressive_combine_to_fma_fsub_1_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
%tid = tail call i32 @llvm.amdgcn.workitem.id.x() #0
%gep.0 = getelementptr double, double addrspace(1)* %in, i32 %tid
%gep.1 = getelementptr double, double addrspace(1)* %gep.0, i32 1
%gep.2 = getelementptr double, double addrspace(1)* %gep.0, i32 2
%gep.3 = getelementptr double, double addrspace(1)* %gep.0, i32 3
%gep.4 = getelementptr double, double addrspace(1)* %gep.0, i32 4
%gep.out = getelementptr double, double addrspace(1)* %out, i32 %tid
%x = load volatile double, double addrspace(1)* %gep.0
%y = load volatile double, double addrspace(1)* %gep.1
%z = load volatile double, double addrspace(1)* %gep.2
%u = load volatile double, double addrspace(1)* %gep.3
%v = load volatile double, double addrspace(1)* %gep.4
%tmp0 = fmul double %u, %v
%tmp1 = call double @llvm.fma.f64(double %y, double %z, double %tmp0) #0
%tmp2 = fsub double %x, %tmp1
store double %tmp2, double addrspace(1)* %gep.out
ret void
}
;
; Patterns (+ fneg variants): mul(add(1.0,x),y), mul(sub(1.0,x),y), mul(sub(x,1.0),y)
;
; FUNC-LABEL: {{^}}test_f32_mul_add_x_one_y:
; SI-NOFMA: v_add_f32_e32 [[VS:v[0-9]]], 1.0, [[VX:v[0-9]]]
; SI-NOFMA: v_mul_f32_e32 {{v[0-9]}}, [[VS]], [[VY:v[0-9]]]
;
; SI-FMA: v_fma_f32 {{v[0-9]}}, [[VX:v[0-9]]], [[VY:v[0-9]]], [[VY:v[0-9]]]
define amdgpu_kernel void @test_f32_mul_add_x_one_y(float addrspace(1)* %out,
float addrspace(1)* %in1,
float addrspace(1)* %in2) {
%x = load volatile float, float addrspace(1)* %in1
%y = load volatile float, float addrspace(1)* %in2
%a = fadd float %x, 1.0
%m = fmul float %a, %y
store float %m, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}test_f32_mul_y_add_x_one:
; SI-NOFMA: v_add_f32_e32 [[VS:v[0-9]]], 1.0, [[VX:v[0-9]]]
; SI-NOFMA: v_mul_f32_e32 {{v[0-9]}}, [[VY:v[0-9]]], [[VS]]
;
; SI-FMA: v_fma_f32 {{v[0-9]}}, [[VX:v[0-9]]], [[VY:v[0-9]]], [[VY:v[0-9]]]
define amdgpu_kernel void @test_f32_mul_y_add_x_one(float addrspace(1)* %out,
float addrspace(1)* %in1,
float addrspace(1)* %in2) {
%x = load volatile float, float addrspace(1)* %in1
%y = load volatile float, float addrspace(1)* %in2
%a = fadd float %x, 1.0
%m = fmul float %y, %a
store float %m, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}test_f32_mul_add_x_negone_y:
; SI-NOFMA: v_add_f32_e32 [[VS:v[0-9]]], -1.0, [[VX:v[0-9]]]
; SI-NOFMA: v_mul_f32_e32 {{v[0-9]}}, [[VS]], [[VY:v[0-9]]]
;
; SI-FMA: v_fma_f32 {{v[0-9]}}, [[VX:v[0-9]]], [[VY:v[0-9]]], -[[VY:v[0-9]]]
define amdgpu_kernel void @test_f32_mul_add_x_negone_y(float addrspace(1)* %out,
float addrspace(1)* %in1,
float addrspace(1)* %in2) {
%x = load float, float addrspace(1)* %in1
%y = load float, float addrspace(1)* %in2
%a = fadd float %x, -1.0
%m = fmul float %a, %y
store float %m, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}test_f32_mul_y_add_x_negone:
; SI-NOFMA: v_add_f32_e32 [[VS:v[0-9]]], -1.0, [[VX:v[0-9]]]
; SI-NOFMA: v_mul_f32_e32 {{v[0-9]}}, [[VY:v[0-9]]], [[VS]]
;
; SI-FMA: v_fma_f32 {{v[0-9]}}, [[VX:v[0-9]]], [[VY:v[0-9]]], -[[VY:v[0-9]]]
define amdgpu_kernel void @test_f32_mul_y_add_x_negone(float addrspace(1)* %out,
float addrspace(1)* %in1,
float addrspace(1)* %in2) {
%x = load float, float addrspace(1)* %in1
%y = load float, float addrspace(1)* %in2
%a = fadd float %x, -1.0
%m = fmul float %y, %a
store float %m, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}test_f32_mul_sub_one_x_y:
; SI-NOFMA: v_sub_f32_e32 [[VS:v[0-9]]], 1.0, [[VX:v[0-9]]]
; SI-NOFMA: v_mul_f32_e32 {{v[0-9]}}, [[VS]], [[VY:v[0-9]]]
;
; SI-FMA: v_fma_f32 {{v[0-9]}}, -[[VX:v[0-9]]], [[VY:v[0-9]]], [[VY:v[0-9]]]
define amdgpu_kernel void @test_f32_mul_sub_one_x_y(float addrspace(1)* %out,
float addrspace(1)* %in1,
float addrspace(1)* %in2) {
%x = load float, float addrspace(1)* %in1
%y = load float, float addrspace(1)* %in2
%s = fsub float 1.0, %x
%m = fmul float %s, %y
store float %m, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}test_f32_mul_y_sub_one_x:
; SI-NOFMA: v_sub_f32_e32 [[VS:v[0-9]]], 1.0, [[VX:v[0-9]]]
; SI-NOFMA: v_mul_f32_e32 {{v[0-9]}}, [[VY:v[0-9]]], [[VS]]
;
; SI-FMA: v_fma_f32 {{v[0-9]}}, -[[VX:v[0-9]]], [[VY:v[0-9]]], [[VY:v[0-9]]]
define amdgpu_kernel void @test_f32_mul_y_sub_one_x(float addrspace(1)* %out,
float addrspace(1)* %in1,
float addrspace(1)* %in2) {
%x = load float, float addrspace(1)* %in1
%y = load float, float addrspace(1)* %in2
%s = fsub float 1.0, %x
%m = fmul float %y, %s
store float %m, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}test_f32_mul_sub_negone_x_y:
; SI-NOFMA: v_sub_f32_e32 [[VS:v[0-9]]], -1.0, [[VX:v[0-9]]]
; SI-NOFMA: v_mul_f32_e32 {{v[0-9]}}, [[VS]], [[VY:v[0-9]]]
;
; SI-FMA: v_fma_f32 {{v[0-9]}}, -[[VX:v[0-9]]], [[VY:v[0-9]]], -[[VY:v[0-9]]]
define amdgpu_kernel void @test_f32_mul_sub_negone_x_y(float addrspace(1)* %out,
float addrspace(1)* %in1,
float addrspace(1)* %in2) {
%x = load float, float addrspace(1)* %in1
%y = load float, float addrspace(1)* %in2
%s = fsub float -1.0, %x
%m = fmul float %s, %y
store float %m, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}test_f32_mul_y_sub_negone_x:
; SI-NOFMA: v_sub_f32_e32 [[VS:v[0-9]]], -1.0, [[VX:v[0-9]]]
; SI-NOFMA: v_mul_f32_e32 {{v[0-9]}}, [[VY:v[0-9]]], [[VS]]
;
; SI-FMA: v_fma_f32 {{v[0-9]}}, -[[VX:v[0-9]]], [[VY:v[0-9]]], -[[VY:v[0-9]]]
define amdgpu_kernel void @test_f32_mul_y_sub_negone_x(float addrspace(1)* %out,
float addrspace(1)* %in1,
float addrspace(1)* %in2) {
%x = load float, float addrspace(1)* %in1
%y = load float, float addrspace(1)* %in2
%s = fsub float -1.0, %x
%m = fmul float %y, %s
store float %m, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}test_f32_mul_sub_x_one_y:
; SI-NOFMA: v_add_f32_e32 [[VS:v[0-9]]], -1.0, [[VX:v[0-9]]]
; SI-NOFMA: v_mul_f32_e32 {{v[0-9]}}, [[VS]], [[VY:v[0-9]]]
;
; SI-FMA: v_fma_f32 {{v[0-9]}}, [[VX:v[0-9]]], [[VY:v[0-9]]], -[[VY:v[0-9]]]
define amdgpu_kernel void @test_f32_mul_sub_x_one_y(float addrspace(1)* %out,
float addrspace(1)* %in1,
float addrspace(1)* %in2) {
%x = load float, float addrspace(1)* %in1
%y = load float, float addrspace(1)* %in2
%s = fsub float %x, 1.0
%m = fmul float %s, %y
store float %m, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}test_f32_mul_y_sub_x_one:
; SI-NOFMA: v_add_f32_e32 [[VS:v[0-9]]], -1.0, [[VX:v[0-9]]]
; SI-NOFMA: v_mul_f32_e32 {{v[0-9]}}, [[VY:v[0-9]]], [[VS]]
;
; SI-FMA: v_fma_f32 {{v[0-9]}}, [[VX:v[0-9]]], [[VY:v[0-9]]], -[[VY:v[0-9]]]
define amdgpu_kernel void @test_f32_mul_y_sub_x_one(float addrspace(1)* %out,
float addrspace(1)* %in1,
float addrspace(1)* %in2) {
%x = load float, float addrspace(1)* %in1
%y = load float, float addrspace(1)* %in2
%s = fsub float %x, 1.0
%m = fmul float %y, %s
store float %m, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}test_f32_mul_sub_x_negone_y:
; SI-NOFMA: v_add_f32_e32 [[VS:v[0-9]]], 1.0, [[VX:v[0-9]]]
; SI-NOFMA: v_mul_f32_e32 {{v[0-9]}}, [[VS]], [[VY:v[0-9]]]
;
; SI-FMA: v_fma_f32 {{v[0-9]}}, [[VX:v[0-9]]], [[VY:v[0-9]]], [[VY:v[0-9]]]
define amdgpu_kernel void @test_f32_mul_sub_x_negone_y(float addrspace(1)* %out,
float addrspace(1)* %in1,
float addrspace(1)* %in2) {
%x = load float, float addrspace(1)* %in1
%y = load float, float addrspace(1)* %in2
%s = fsub float %x, -1.0
%m = fmul float %s, %y
store float %m, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}test_f32_mul_y_sub_x_negone:
; SI-NOFMA: v_add_f32_e32 [[VS:v[0-9]]], 1.0, [[VX:v[0-9]]]
; SI-NOFMA: v_mul_f32_e32 {{v[0-9]}}, [[VY:v[0-9]]], [[VS]]
;
; SI-FMA: v_fma_f32 {{v[0-9]}}, [[VX:v[0-9]]], [[VY:v[0-9]]], [[VY:v[0-9]]]
define amdgpu_kernel void @test_f32_mul_y_sub_x_negone(float addrspace(1)* %out,
float addrspace(1)* %in1,
float addrspace(1)* %in2) {
%x = load float, float addrspace(1)* %in1
%y = load float, float addrspace(1)* %in2
%s = fsub float %x, -1.0
%m = fmul float %y, %s
store float %m, float addrspace(1)* %out
ret void
}
;
; Interpolation Patterns: add(mul(x,t),mul(sub(1.0,t),y))
;
; FUNC-LABEL: {{^}}test_f32_interp:
; SI-NOFMA: v_sub_f32_e32 [[VT1:v[0-9]]], 1.0, [[VT:v[0-9]]]
; SI-NOFMA: v_mul_f32_e32 [[VTY:v[0-9]]], [[VY:v[0-9]]], [[VT1]]
; SI-NOFMA: v_mac_f32_e32 [[VTY]], [[VX:v[0-9]]], [[VT]]
;
; SI-FMA: v_fma_f32 [[VR:v[0-9]]], -[[VT:v[0-9]]], [[VY:v[0-9]]], [[VY]]
; SI-FMA: v_fma_f32 {{v[0-9]}}, [[VX:v[0-9]]], [[VT]], [[VR]]
define amdgpu_kernel void @test_f32_interp(float addrspace(1)* %out,
float addrspace(1)* %in1,
float addrspace(1)* %in2,
float addrspace(1)* %in3) {
%x = load float, float addrspace(1)* %in1
%y = load float, float addrspace(1)* %in2
%t = load float, float addrspace(1)* %in3
%t1 = fsub float 1.0, %t
%tx = fmul float %x, %t
%ty = fmul float %y, %t1
%r = fadd float %tx, %ty
store float %r, float addrspace(1)* %out
ret void
}
; FUNC-LABEL: {{^}}test_f64_interp:
; SI-NOFMA: v_add_f64 [[VT1:v\[[0-9]+:[0-9]+\]]], -[[VT:v\[[0-9]+:[0-9]+\]]], 1.0
; SI-NOFMA: v_mul_f64 [[VTY:v\[[0-9]+:[0-9]+\]]], [[VY:v\[[0-9]+:[0-9]+\]]], [[VT1]]
; SI-NOFMA: v_fma_f64 v{{\[[0-9]+:[0-9]+\]}}, [[VX:v\[[0-9]+:[0-9]+\]]], [[VT]], [[VTY]]
;
; SI-FMA: v_fma_f64 [[VR:v\[[0-9]+:[0-9]+\]]], -[[VT:v\[[0-9]+:[0-9]+\]]], [[VY:v\[[0-9]+:[0-9]+\]]], [[VY]]
; SI-FMA: v_fma_f64 v{{\[[0-9]+:[0-9]+\]}}, [[VX:v\[[0-9]+:[0-9]+\]]], [[VT]], [[VR]]
define amdgpu_kernel void @test_f64_interp(double addrspace(1)* %out,
double addrspace(1)* %in1,
double addrspace(1)* %in2,
double addrspace(1)* %in3) {
%x = load double, double addrspace(1)* %in1
%y = load double, double addrspace(1)* %in2
%t = load double, double addrspace(1)* %in3
%t1 = fsub double 1.0, %t
%tx = fmul double %x, %t
%ty = fmul double %y, %t1
%r = fadd double %tx, %ty
store double %r, double addrspace(1)* %out
ret void
}
; Make sure negative constant cancels out fneg
; GCN-LABEL: {{^}}fma_neg_2.0_neg_a_b_f32:
; GCN: {{buffer|flat|global}}_load_dword [[A:v[0-9]+]]
; GCN: {{buffer|flat|global}}_load_dword [[B:v[0-9]+]]
; GCN-NOT: [[A]]
; GCN-NOT: [[B]]
; GCN: v_fma_f32 v{{[0-9]+}}, [[A]], 2.0, [[B]]
define amdgpu_kernel void @fma_neg_2.0_neg_a_b_f32(float addrspace(1)* %out, float addrspace(1)* %in) #0 {
%tid = call i32 @llvm.amdgcn.workitem.id.x()
%gep.0 = getelementptr float, float addrspace(1)* %out, i32 %tid
%gep.1 = getelementptr float, float addrspace(1)* %gep.0, i32 1
%gep.out = getelementptr float, float addrspace(1)* %out, i32 %tid
%r1 = load volatile float, float addrspace(1)* %gep.0
%r2 = load volatile float, float addrspace(1)* %gep.1
%r1.fneg = fsub float -0.000000e+00, %r1
%r3 = tail call float @llvm.fma.f32(float -2.0, float %r1.fneg, float %r2)
store float %r3, float addrspace(1)* %gep.out
ret void
}
; GCN-LABEL: {{^}}fma_2.0_neg_a_b_f32:
; GCN: {{buffer|flat|global}}_load_dword [[A:v[0-9]+]]
; GCN: {{buffer|flat|global}}_load_dword [[B:v[0-9]+]]
; GCN-NOT: [[A]]
; GCN-NOT: [[B]]
; GCN: v_fma_f32 v{{[0-9]+}}, [[A]], -2.0, [[B]]
define amdgpu_kernel void @fma_2.0_neg_a_b_f32(float addrspace(1)* %out, float addrspace(1)* %in) #0 {
%tid = call i32 @llvm.amdgcn.workitem.id.x()
%gep.0 = getelementptr float, float addrspace(1)* %out, i32 %tid
%gep.1 = getelementptr float, float addrspace(1)* %gep.0, i32 1
%gep.out = getelementptr float, float addrspace(1)* %out, i32 %tid
%r1 = load volatile float, float addrspace(1)* %gep.0
%r2 = load volatile float, float addrspace(1)* %gep.1
%r1.fneg = fsub float -0.000000e+00, %r1
%r3 = tail call float @llvm.fma.f32(float 2.0, float %r1.fneg, float %r2)
store float %r3, float addrspace(1)* %gep.out
ret void
}
attributes #0 = { nounwind readnone }
attributes #1 = { nounwind }
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