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llvm-mirror/test/CodeGen/AMDGPU/promote-alloca-addrspacecast.ll
Matt Arsenault 78957bd5fc AMDGPU: Fix AMDGPUPromoteAlloca breaking addrspacecasts
The users of the addrspacecast were having their types incorrectly
changed, producing invalid bitcasts between address spaces.

llvm-svn: 289307
2016-12-10 00:52:50 +00:00

22 lines
988 B
LLVM

; RUN: opt -S -mtriple=amdgcn-unknown-amdhsa -mcpu=kaveri -amdgpu-promote-alloca < %s | FileCheck %s
; The types of the users of the addrspacecast should not be changed.
; CHECK-LABEL: @invalid_bitcast_addrspace(
; CHECK: getelementptr inbounds [256 x [1 x i32]], [256 x [1 x i32]] addrspace(3)* @invalid_bitcast_addrspace.data, i32 0, i32 %14
; CHECK: bitcast [1 x i32] addrspace(3)* %{{[0-9]+}} to half addrspace(3)*
; CHECK: addrspacecast half addrspace(3)* %tmp to half addrspace(4)*
; CHECK: bitcast half addrspace(4)* %tmp1 to <2 x i16> addrspace(4)*
define amdgpu_kernel void @invalid_bitcast_addrspace() #0 {
entry:
%data = alloca [1 x i32], align 4
%tmp = bitcast [1 x i32]* %data to half*
%tmp1 = addrspacecast half* %tmp to half addrspace(4)*
%tmp2 = bitcast half addrspace(4)* %tmp1 to <2 x i16> addrspace(4)*
%tmp3 = load <2 x i16>, <2 x i16> addrspace(4)* %tmp2, align 2
%tmp4 = bitcast <2 x i16> %tmp3 to <2 x half>
ret void
}
attributes #0 = { nounwind }