forked from OSchip/llvm-project
75 lines
3.2 KiB
LLVM
75 lines
3.2 KiB
LLVM
; 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 }
|