29 lines
1.1 KiB
LLVM
29 lines
1.1 KiB
LLVM
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; RUN: llc -mtriple=amdgcn -stop-after=amdgpu-isel < %s | FileCheck -enable-var-scope -check-prefixes=GCN,SI %s
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; RUN: llc -mtriple=amdgcn -mcpu=gfx900 -stop-after=amdgpu-isel < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX900 %s
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; GCN-LABEL: name: uniform_add_SIC
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; GCN: S_SUB_I32 killed %{{[0-9]+}}, 32
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define amdgpu_kernel void @uniform_add_SIC(ptr addrspace(1) %out, ptr addrspace(1) %in) #0 {
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%a = load i32, ptr addrspace(1) %in
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%result = add i32 %a, -32
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store i32 %result, ptr addrspace(1) %out
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ret void
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}
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; GCN-LABEL: name: divergent_add_SIC
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; SI: V_SUB_CO_U32_e64 killed %{{[0-9]+}}, 32
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; GFX900: V_SUB_U32_e64 killed %{{[0-9]+}}, 32
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define amdgpu_kernel void @divergent_add_SIC(ptr addrspace(1) %out, ptr addrspace(1) %in) #0 {
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%tid = call i32 @llvm.amdgcn.workitem.id.x()
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%gep = getelementptr inbounds i32, ptr addrspace(1) %in, i32 %tid
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%a = load volatile i32, ptr addrspace(1) %gep
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%result = add i32 %a, -32
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store i32 %result, ptr addrspace(1) %out
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ret void
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}
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declare i32 @llvm.amdgcn.workitem.id.x() #1
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attributes #0 = { nounwind }
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attributes #1 = { nounwind readnone speculatable }
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