mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-23 17:29:19 +00:00
fa711758df
Add tests for the various combines. This should always be at least cycle neutral on all subtargets for f64, and faster on some. For f32 we should prefer selecting v_mad_f32 over v_fma_f32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227484 91177308-0d34-0410-b5e6-96231b3b80d8
369 lines
19 KiB
LLVM
369 lines
19 KiB
LLVM
; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs -fp-contract=fast < %s | FileCheck -check-prefix=SI-FASTFMAF -check-prefix=SI -check-prefix=FUNC %s
|
|
; RUN: llc -march=amdgcn -mcpu=verde -verify-machineinstrs -fp-contract=fast < %s | FileCheck -check-prefix=SI-SLOWFMAF -check-prefix=SI -check-prefix=FUNC %s
|
|
|
|
declare i32 @llvm.r600.read.tidig.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 void @combine_to_fma_f64_0(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
|
|
%tid = tail call i32 @llvm.r600.read.tidig.x() #0
|
|
%gep.0 = getelementptr double addrspace(1)* %in, i32 %tid
|
|
%gep.1 = getelementptr double addrspace(1)* %gep.0, i32 1
|
|
%gep.2 = getelementptr double addrspace(1)* %gep.0, i32 2
|
|
%gep.out = getelementptr double addrspace(1)* %out, i32 %tid
|
|
|
|
%a = load double addrspace(1)* %gep.0
|
|
%b = load double addrspace(1)* %gep.1
|
|
%c = load 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 void @combine_to_fma_f64_0_2use(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
|
|
%tid = tail call i32 @llvm.r600.read.tidig.x() #0
|
|
%gep.0 = getelementptr double addrspace(1)* %in, i32 %tid
|
|
%gep.1 = getelementptr double addrspace(1)* %gep.0, i32 1
|
|
%gep.2 = getelementptr double addrspace(1)* %gep.0, i32 2
|
|
%gep.3 = getelementptr double addrspace(1)* %gep.0, i32 3
|
|
%gep.out.0 = getelementptr double addrspace(1)* %out, i32 %tid
|
|
%gep.out.1 = getelementptr double addrspace(1)* %gep.out.0, i32 1
|
|
|
|
%a = load double addrspace(1)* %gep.0
|
|
%b = load double addrspace(1)* %gep.1
|
|
%c = load double addrspace(1)* %gep.2
|
|
%d = load double addrspace(1)* %gep.3
|
|
|
|
%mul = fmul double %a, %b
|
|
%fma0 = fadd double %mul, %c
|
|
%fma1 = fadd double %mul, %d
|
|
store double %fma0, double addrspace(1)* %gep.out.0
|
|
store 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 void @combine_to_fma_f64_1(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
|
|
%tid = tail call i32 @llvm.r600.read.tidig.x() #0
|
|
%gep.0 = getelementptr double addrspace(1)* %in, i32 %tid
|
|
%gep.1 = getelementptr double addrspace(1)* %gep.0, i32 1
|
|
%gep.2 = getelementptr double addrspace(1)* %gep.0, i32 2
|
|
%gep.out = getelementptr double addrspace(1)* %out, i32 %tid
|
|
|
|
%a = load double addrspace(1)* %gep.0
|
|
%b = load double addrspace(1)* %gep.1
|
|
%c = load 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 void @combine_to_fma_fsub_0_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
|
|
%tid = tail call i32 @llvm.r600.read.tidig.x() #0
|
|
%gep.0 = getelementptr double addrspace(1)* %in, i32 %tid
|
|
%gep.1 = getelementptr double addrspace(1)* %gep.0, i32 1
|
|
%gep.2 = getelementptr double addrspace(1)* %gep.0, i32 2
|
|
%gep.out = getelementptr double addrspace(1)* %out, i32 %tid
|
|
|
|
%a = load double addrspace(1)* %gep.0
|
|
%b = load double addrspace(1)* %gep.1
|
|
%c = load 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 void @combine_to_fma_fsub_f64_0_2use(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
|
|
%tid = tail call i32 @llvm.r600.read.tidig.x() #0
|
|
%gep.0 = getelementptr double addrspace(1)* %in, i32 %tid
|
|
%gep.1 = getelementptr double addrspace(1)* %gep.0, i32 1
|
|
%gep.2 = getelementptr double addrspace(1)* %gep.0, i32 2
|
|
%gep.3 = getelementptr double addrspace(1)* %gep.0, i32 3
|
|
%gep.out.0 = getelementptr double addrspace(1)* %out, i32 %tid
|
|
%gep.out.1 = getelementptr double addrspace(1)* %gep.out.0, i32 1
|
|
|
|
%a = load double addrspace(1)* %gep.0
|
|
%b = load double addrspace(1)* %gep.1
|
|
%c = load double addrspace(1)* %gep.2
|
|
%d = load double addrspace(1)* %gep.3
|
|
|
|
%mul = fmul double %a, %b
|
|
%fma0 = fsub double %mul, %c
|
|
%fma1 = fsub double %mul, %d
|
|
store double %fma0, double addrspace(1)* %gep.out.0
|
|
store 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 void @combine_to_fma_fsub_1_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
|
|
%tid = tail call i32 @llvm.r600.read.tidig.x() #0
|
|
%gep.0 = getelementptr double addrspace(1)* %in, i32 %tid
|
|
%gep.1 = getelementptr double addrspace(1)* %gep.0, i32 1
|
|
%gep.2 = getelementptr double addrspace(1)* %gep.0, i32 2
|
|
%gep.out = getelementptr double addrspace(1)* %out, i32 %tid
|
|
|
|
%a = load double addrspace(1)* %gep.0
|
|
%b = load double addrspace(1)* %gep.1
|
|
%c = load 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 void @combine_to_fma_fsub_1_f64_2use(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
|
|
%tid = tail call i32 @llvm.r600.read.tidig.x() #0
|
|
%gep.0 = getelementptr double addrspace(1)* %in, i32 %tid
|
|
%gep.1 = getelementptr double addrspace(1)* %gep.0, i32 1
|
|
%gep.2 = getelementptr double addrspace(1)* %gep.0, i32 2
|
|
%gep.3 = getelementptr double addrspace(1)* %gep.0, i32 3
|
|
%gep.out.0 = getelementptr double addrspace(1)* %out, i32 %tid
|
|
%gep.out.1 = getelementptr double addrspace(1)* %gep.out.0, i32 1
|
|
|
|
%a = load double addrspace(1)* %gep.0
|
|
%b = load double addrspace(1)* %gep.1
|
|
%c = load double addrspace(1)* %gep.2
|
|
%d = load double addrspace(1)* %gep.3
|
|
|
|
%mul = fmul double %a, %b
|
|
%fma0 = fsub double %c, %mul
|
|
%fma1 = fsub double %d, %mul
|
|
store double %fma0, double addrspace(1)* %gep.out.0
|
|
store 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 void @combine_to_fma_fsub_2_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
|
|
%tid = tail call i32 @llvm.r600.read.tidig.x() #0
|
|
%gep.0 = getelementptr double addrspace(1)* %in, i32 %tid
|
|
%gep.1 = getelementptr double addrspace(1)* %gep.0, i32 1
|
|
%gep.2 = getelementptr double addrspace(1)* %gep.0, i32 2
|
|
%gep.out = getelementptr double addrspace(1)* %out, i32 %tid
|
|
|
|
%a = load double addrspace(1)* %gep.0
|
|
%b = load double addrspace(1)* %gep.1
|
|
%c = load 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: 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 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.r600.read.tidig.x() #0
|
|
%gep.0 = getelementptr double addrspace(1)* %in, i32 %tid
|
|
%gep.1 = getelementptr double addrspace(1)* %gep.0, i32 1
|
|
%gep.2 = getelementptr double addrspace(1)* %gep.0, i32 2
|
|
%gep.3 = getelementptr double addrspace(1)* %gep.0, i32 3
|
|
%gep.out.0 = getelementptr double addrspace(1)* %out, i32 %tid
|
|
%gep.out.1 = getelementptr double addrspace(1)* %gep.out.0, i32 1
|
|
|
|
%a = load double addrspace(1)* %gep.0
|
|
%b = load double addrspace(1)* %gep.1
|
|
%c = load double addrspace(1)* %gep.2
|
|
%d = load 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 double %fma0, double addrspace(1)* %gep.out.0
|
|
store 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: 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 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.r600.read.tidig.x() #0
|
|
%gep.0 = getelementptr double addrspace(1)* %in, i32 %tid
|
|
%gep.1 = getelementptr double addrspace(1)* %gep.0, i32 1
|
|
%gep.2 = getelementptr double addrspace(1)* %gep.0, i32 2
|
|
%gep.3 = getelementptr double addrspace(1)* %gep.0, i32 3
|
|
%gep.out.0 = getelementptr double addrspace(1)* %out, i32 %tid
|
|
%gep.out.1 = getelementptr double addrspace(1)* %gep.out.0, i32 1
|
|
|
|
%a = load double addrspace(1)* %gep.0
|
|
%b = load double addrspace(1)* %gep.1
|
|
%c = load double addrspace(1)* %gep.2
|
|
%d = load 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 double %fma0, double addrspace(1)* %gep.out.0
|
|
store 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: v_fma_f64 [[FMA0:v\[[0-9]+:[0-9]+\]]], [[U]], [[V]], -[[Z]]
|
|
; SI: v_fma_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], [[X]], [[Y]], [[FMA0]]
|
|
; SI: buffer_store_dwordx2 [[RESULT]]
|
|
define void @aggressive_combine_to_fma_fsub_0_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
|
|
%tid = tail call i32 @llvm.r600.read.tidig.x() #0
|
|
%gep.0 = getelementptr double addrspace(1)* %in, i32 %tid
|
|
%gep.1 = getelementptr double addrspace(1)* %gep.0, i32 1
|
|
%gep.2 = getelementptr double addrspace(1)* %gep.0, i32 2
|
|
%gep.3 = getelementptr double addrspace(1)* %gep.0, i32 3
|
|
%gep.4 = getelementptr double addrspace(1)* %gep.0, i32 4
|
|
%gep.out = getelementptr double addrspace(1)* %out, i32 %tid
|
|
|
|
%x = load double addrspace(1)* %gep.0
|
|
%y = load double addrspace(1)* %gep.1
|
|
%z = load double addrspace(1)* %gep.2
|
|
%u = load double addrspace(1)* %gep.3
|
|
%v = load 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: v_fma_f64 [[FMA0:v\[[0-9]+:[0-9]+\]]], -[[U]], [[V]], [[X]]
|
|
; SI: v_fma_f64 [[RESULT:v\[[0-9]+:[0-9]+\]]], -[[Y]], [[Z]], [[FMA0]]
|
|
; SI: buffer_store_dwordx2 [[RESULT]]
|
|
define void @aggressive_combine_to_fma_fsub_1_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) #1 {
|
|
%tid = tail call i32 @llvm.r600.read.tidig.x() #0
|
|
%gep.0 = getelementptr double addrspace(1)* %in, i32 %tid
|
|
%gep.1 = getelementptr double addrspace(1)* %gep.0, i32 1
|
|
%gep.2 = getelementptr double addrspace(1)* %gep.0, i32 2
|
|
%gep.3 = getelementptr double addrspace(1)* %gep.0, i32 3
|
|
%gep.4 = getelementptr double addrspace(1)* %gep.0, i32 4
|
|
%gep.out = getelementptr double addrspace(1)* %out, i32 %tid
|
|
|
|
%x = load double addrspace(1)* %gep.0
|
|
%y = load double addrspace(1)* %gep.1
|
|
%z = load double addrspace(1)* %gep.2
|
|
%u = load double addrspace(1)* %gep.3
|
|
%v = load 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
|
|
}
|
|
|
|
attributes #0 = { nounwind readnone }
|
|
attributes #1 = { nounwind }
|