llvm/test/CodeGen/AMDGPU/promote-alloca-invariant-markers.ll
Matt Arsenault 584bbb20e9 AMDGPU: Fix crash with invariant markers
The promote alloca pass didn't handle these intrinsics and crashed.
These intrinsics should accept any address space, but for now just
erase them to avoid breaking.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258537 91177308-0d34-0410-b5e6-96231b3b80d8
2016-01-22 19:47:54 +00:00

26 lines
961 B
LLVM

; RUN: llc -march=amdgcn -mattr=+promote-alloca -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
declare {}* @llvm.invariant.start(i64, i8* nocapture) #0
declare void @llvm.invariant.end({}*, i64, i8* nocapture) #0
declare i8* @llvm.invariant.group.barrier(i8*) #1
; GCN-LABEL: {{^}}use_invariant_promotable_lds:
; GCN: buffer_load_dword
; GCN: ds_write_b32
define void @use_invariant_promotable_lds(i32 addrspace(1)* %arg) #2 {
bb:
%tmp = alloca i32, align 4
%tmp1 = bitcast i32* %tmp to i8*
%tmp2 = getelementptr inbounds i32, i32 addrspace(1)* %arg, i64 1
%tmp3 = load i32, i32 addrspace(1)* %tmp2
store i32 %tmp3, i32* %tmp
%tmp4 = call {}* @llvm.invariant.start(i64 4, i8* %tmp1) #0
call void @llvm.invariant.end({}* %tmp4, i64 4, i8* %tmp1) #0
%tmp5 = call i8* @llvm.invariant.group.barrier(i8* %tmp1) #1
ret void
}
attributes #0 = { argmemonly nounwind }
attributes #1 = { nounwind readnone }
attributes #2 = { nounwind }