forked from OSchip/llvm-project
28 lines
1.0 KiB
LLVM
28 lines
1.0 KiB
LLVM
; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
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declare i32 @llvm.AMDGPU.brev(i32) nounwind readnone
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; FUNC-LABEL: @s_brev_i32:
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; SI: S_LOAD_DWORD [[VAL:s[0-9]+]],
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; SI: S_BREV_B32 [[SRESULT:s[0-9]+]], [[VAL]]
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; SI: V_MOV_B32_e32 [[VRESULT:v[0-9]+]], [[SRESULT]]
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; SI: BUFFER_STORE_DWORD [[VRESULT]],
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; SI: S_ENDPGM
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define void @s_brev_i32(i32 addrspace(1)* noalias %out, i32 %val) nounwind {
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%ctlz = call i32 @llvm.AMDGPU.brev(i32 %val) nounwind readnone
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store i32 %ctlz, i32 addrspace(1)* %out, align 4
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ret void
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}
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; FUNC-LABEL: @v_brev_i32:
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; SI: BUFFER_LOAD_DWORD [[VAL:v[0-9]+]],
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; SI: V_BFREV_B32_e32 [[RESULT:v[0-9]+]], [[VAL]]
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; SI: BUFFER_STORE_DWORD [[RESULT]],
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; SI: S_ENDPGM
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define void @v_brev_i32(i32 addrspace(1)* noalias %out, i32 addrspace(1)* noalias %valptr) nounwind {
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%val = load i32 addrspace(1)* %valptr, align 4
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%ctlz = call i32 @llvm.AMDGPU.brev(i32 %val) nounwind readnone
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store i32 %ctlz, i32 addrspace(1)* %out, align 4
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ret void
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}
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