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https://github.com/RPCS3/llvm-mirror.git
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cb35142c34
Fix 64-bit copy to SCC by restricting the pattern resulting in such a copy to subtargets supporting 64-bit scalar compare, and mapping the copy to S_CMP_LG_U64. Before introducing the S_CSELECT pattern with explicit SCC (0045786f146e78afee49eee053dc29ebc842fee1), there was no need for handling 64-bit copy to SCC ($scc = COPY sreg_64). The proposed handling to read only the low bits was however based on a false premise that it is only one bit that matters, while in fact the copy source might be a vector of booleans and all bits need to be considered. The practical problem of mapping the 64-bit copy to SCC is that the natural instruction to use (S_CMP_LG_U64) is not available on old hardware. Fix it by restricting the problematic pattern to subtargets supporting the instruction (hasScalarCompareEq64). Differential Revision: https://reviews.llvm.org/D85207
96 lines
3.8 KiB
LLVM
96 lines
3.8 KiB
LLVM
;RUN: llc < %s -march=amdgcn -verify-machineinstrs | FileCheck --check-prefix=SI --check-prefix=FUNC %s
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;RUN: llc < %s -march=amdgcn -mcpu=tonga -mattr=-flat-for-global -verify-machineinstrs | FileCheck --check-prefix=VI --check-prefix=FUNC %s
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;RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck --check-prefix=EG --check-prefix=FUNC %s
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; FUNC-LABEL: {{^}}test_select_v2i32:
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; EG-DAG: CNDE_INT {{\** *}}T{{[0-9]+\.[XYZW], PV\.[XYZW], T[0-9]+\.[XYZW]}}, KC0[3].Z
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; EG-DAG: CNDE_INT {{\** *}}T{{[0-9]+\.[XYZW], PV\.[XYZW], T[0-9]+\.[XYZW]}}, KC0[3].Y
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; VI: s_cmp_gt_i32
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; VI: s_cselect_b32
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; VI: s_cmp_gt_i32
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; VI: s_cselect_b32
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; SI: v_cmp_gt_i32_e32 vcc
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; SI: v_cndmask_b32_e32
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; SI: v_cmp_gt_i32_e32 vcc
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; SI: v_cndmask_b32_e32
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define amdgpu_kernel void @test_select_v2i32(<2 x i32> addrspace(1)* %out, <2 x i32> addrspace(1)* %in0, <2 x i32> addrspace(1)* %in1, <2 x i32> %val) {
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entry:
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%load0 = load <2 x i32>, <2 x i32> addrspace(1)* %in0
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%load1 = load <2 x i32>, <2 x i32> addrspace(1)* %in1
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%cmp = icmp sgt <2 x i32> %load0, %load1
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%result = select <2 x i1> %cmp, <2 x i32> %val, <2 x i32> %load0
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store <2 x i32> %result, <2 x i32> addrspace(1)* %out
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ret void
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}
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; FUNC-LABEL: {{^}}test_select_v2f32:
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; EG: CNDE_INT {{\** *}}T{{[0-9]+\.[XYZW], PV\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
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; EG: CNDE_INT {{\** *}}T{{[0-9]+\.[XYZW], PV\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
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; SI: v_cmp_neq_f32_e32 vcc
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; SI: v_cndmask_b32_e32
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; SI: v_cmp_neq_f32_e32 vcc
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; SI: v_cndmask_b32_e32
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define amdgpu_kernel void @test_select_v2f32(<2 x float> addrspace(1)* %out, <2 x float> addrspace(1)* %in0, <2 x float> addrspace(1)* %in1) {
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entry:
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%0 = load <2 x float>, <2 x float> addrspace(1)* %in0
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%1 = load <2 x float>, <2 x float> addrspace(1)* %in1
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%cmp = fcmp une <2 x float> %0, %1
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%result = select <2 x i1> %cmp, <2 x float> %0, <2 x float> %1
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store <2 x float> %result, <2 x float> addrspace(1)* %out
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ret void
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}
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;FUNC-LABEL: {{^}}test_select_v4i32:
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; EG-DAG: CNDE_INT {{\** *}}T{{[0-9]+\.[XYZW], PV\.[XYZW], T[0-9]+\.[XYZW]}}, KC0[4].X
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; EG-DAG: CNDE_INT {{\** *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, KC0[3].W
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; EG-DAG: CNDE_INT {{\** *}}T{{[0-9]+\.[XYZW], PV\.[XYZW], T[0-9]+\.[XYZW]}}, KC0[3].Z
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; EG-DAG: CNDE_INT {{\** *}}T{{[0-9]+\.[XYZW], PV\.[XYZW], T[0-9]+\.[XYZW]}}, KC0[3].Y
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; VI: s_cselect_b32
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; VI: s_cselect_b32
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; VI: s_cselect_b32
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; VI: s_cselect_b32
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; SI: v_cndmask_b32_e32
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; SI: v_cndmask_b32_e32
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; SI: v_cndmask_b32_e32
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; SI: v_cndmask_b32_e32
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define amdgpu_kernel void @test_select_v4i32(<4 x i32> addrspace(1)* %out, <4 x i32> addrspace(1)* %in0, <4 x i32> addrspace(1)* %in1, <4 x i32> %val) {
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entry:
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%load0 = load <4 x i32>, <4 x i32> addrspace(1)* %in0
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%load1 = load <4 x i32>, <4 x i32> addrspace(1)* %in1
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%cmp = icmp sgt <4 x i32> %load0, %load1
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%result = select <4 x i1> %cmp, <4 x i32> %val, <4 x i32> %load0
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store <4 x i32> %result, <4 x i32> addrspace(1)* %out
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ret void
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}
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;FUNC-LABEL: {{^}}test_select_v4f32:
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;EG: CNDE_INT {{\** *}}T{{[0-9]+\.[XYZW], PV\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
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;EG: CNDE_INT {{\** *}}T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
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;EG: CNDE_INT {{\** *}}T{{[0-9]+\.[XYZW], PV\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
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;EG: CNDE_INT {{\** *}}T{{[0-9]+\.[XYZW], PV\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
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; SI: v_cndmask_b32_e32
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; SI: v_cndmask_b32_e32
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; SI: v_cndmask_b32_e32
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; SI: v_cndmask_b32_e32
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define amdgpu_kernel void @test_select_v4f32(<4 x float> addrspace(1)* %out, <4 x float> addrspace(1)* %in0, <4 x float> addrspace(1)* %in1) {
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entry:
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%0 = load <4 x float>, <4 x float> addrspace(1)* %in0
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%1 = load <4 x float>, <4 x float> addrspace(1)* %in1
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%cmp = fcmp une <4 x float> %0, %1
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%result = select <4 x i1> %cmp, <4 x float> %0, <4 x float> %1
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store <4 x float> %result, <4 x float> addrspace(1)* %out
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ret void
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}
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