mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-24 06:30:19 +00:00
5ee5d45e7e
The lost chain resulting in earlier side effecting nodes being deleted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217561 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
843 B
LLVM
27 lines
843 B
LLVM
; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=FUNC -check-prefix=SI %s
|
|
|
|
@ptr_load = addrspace(3) global i32 addrspace(2)* null, align 8
|
|
|
|
; Make sure when the load from %ptr2 is folded the chain isn't lost,
|
|
; resulting in losing the store to gptr
|
|
|
|
; FUNC-LABEL: @missing_store_reduced
|
|
; SI: DS_READ_B64
|
|
; SI: BUFFER_STORE_DWORD
|
|
; SI: BUFFER_LOAD_DWORD
|
|
; SI: BUFFER_STORE_DWORD
|
|
; SI: S_ENDPGM
|
|
define void @missing_store_reduced(i32 addrspace(1)* %out, i32 addrspace(1)* %gptr) #0 {
|
|
%ptr0 = load i32 addrspace(2)* addrspace(3)* @ptr_load, align 8
|
|
%ptr2 = getelementptr inbounds i32 addrspace(2)* %ptr0, i64 2
|
|
|
|
store i32 99, i32 addrspace(1)* %gptr, align 4
|
|
%tmp2 = load i32 addrspace(2)* %ptr2, align 4
|
|
|
|
store i32 %tmp2, i32 addrspace(1)* %out, align 4
|
|
ret void
|
|
}
|
|
|
|
attributes #0 = { nounwind }
|
|
|