| ; RUN: opt -S -mtriple=amdgcn-unknown-unknown -amdgpu-promote-alloca < %s | FileCheck -check-prefix=IR %s |
| ; RUN: llc -march=amdgcn -mcpu=tonga < %s | FileCheck -check-prefix=ASM %s |
| |
| ; IR-LABEL: define amdgpu_vs void @promote_alloca_shaders(i32 addrspace(1)* inreg %out, i32 addrspace(1)* inreg %in) #0 { |
| ; IR: alloca [5 x i32] |
| ; ASM-LABEL: {{^}}promote_alloca_shaders: |
| ; ASM: ; LDSByteSize: 0 bytes/workgroup (compile time only) |
| |
| define amdgpu_vs void @promote_alloca_shaders(i32 addrspace(1)* inreg %out, i32 addrspace(1)* inreg %in) #0 { |
| entry: |
| %stack = alloca [5 x i32], align 4 |
| %tmp0 = load i32, i32 addrspace(1)* %in, align 4 |
| %arrayidx1 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 %tmp0 |
| store i32 4, i32* %arrayidx1, align 4 |
| %arrayidx2 = getelementptr inbounds i32, i32 addrspace(1)* %in, i32 1 |
| %tmp1 = load i32, i32 addrspace(1)* %arrayidx2, align 4 |
| %arrayidx3 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 %tmp1 |
| store i32 5, i32* %arrayidx3, align 4 |
| %arrayidx4 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 0 |
| %tmp2 = load i32, i32* %arrayidx4, align 4 |
| store i32 %tmp2, i32 addrspace(1)* %out, align 4 |
| %arrayidx5 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 1 |
| %tmp3 = load i32, i32* %arrayidx5 |
| %arrayidx6 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 1 |
| store i32 %tmp3, i32 addrspace(1)* %arrayidx6 |
| ret void |
| } |
| |
| ; OPT-LABEL: @promote_to_vector_call_c( |
| ; OPT-NOT: alloca |
| ; OPT: extractelement <2 x i32> %{{[0-9]+}}, i32 %in |
| ; ASM-NOT: LDSByteSize |
| define void @promote_to_vector_call_c(i32 addrspace(1)* %out, i32 %in) #0 { |
| entry: |
| %tmp = alloca [2 x i32] |
| %tmp1 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 0 |
| %tmp2 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 1 |
| store i32 0, i32* %tmp1 |
| store i32 1, i32* %tmp2 |
| %tmp3 = getelementptr [2 x i32], [2 x i32]* %tmp, i32 0, i32 %in |
| %tmp4 = load i32, i32* %tmp3 |
| %tmp5 = load volatile i32, i32 addrspace(1)* undef |
| %tmp6 = add i32 %tmp4, %tmp5 |
| store i32 %tmp6, i32 addrspace(1)* %out |
| ret void |
| } |
| |
| ; OPT-LABEL: @no_promote_to_lds_c( |
| ; OPT: alloca |
| ; ASM-NOT: LDSByteSize |
| define void @no_promote_to_lds(i32 addrspace(1)* nocapture %out, i32 addrspace(1)* nocapture %in) #0 { |
| entry: |
| %stack = alloca [5 x i32], align 4 |
| %0 = load i32, i32 addrspace(1)* %in, align 4 |
| %arrayidx1 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 %0 |
| store i32 4, i32* %arrayidx1, align 4 |
| %arrayidx2 = getelementptr inbounds i32, i32 addrspace(1)* %in, i32 1 |
| %1 = load i32, i32 addrspace(1)* %arrayidx2, align 4 |
| %arrayidx3 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 %1 |
| store i32 5, i32* %arrayidx3, align 4 |
| %arrayidx10 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 0 |
| %2 = load i32, i32* %arrayidx10, align 4 |
| store i32 %2, i32 addrspace(1)* %out, align 4 |
| %arrayidx12 = getelementptr inbounds [5 x i32], [5 x i32]* %stack, i32 0, i32 1 |
| %3 = load i32, i32* %arrayidx12 |
| %arrayidx13 = getelementptr inbounds i32, i32 addrspace(1)* %out, i32 1 |
| store i32 %3, i32 addrspace(1)* %arrayidx13 |
| ret void |
| } |
| |
| declare i32 @llvm.amdgcn.workitem.id.x() #1 |
| |
| attributes #0 = { nounwind "amdgpu-max-work-group-size"="64" } |
| attributes #1 = { nounwind readnone } |