[AMDGPU] Prevent post-RA scheduler from breaking memory clauses
The pre-RA scheduler does load/store clustering, but post-RA
scheduler undoes it. Add mutation to prevent it.
Differential Revision: https://reviews.llvm.org/D38014
llvm-svn: 313670
diff --git a/llvm/test/CodeGen/AMDGPU/load-weird-sizes.ll b/llvm/test/CodeGen/AMDGPU/load-weird-sizes.ll
index f9ba624..fff0d352 100644
--- a/llvm/test/CodeGen/AMDGPU/load-weird-sizes.ll
+++ b/llvm/test/CodeGen/AMDGPU/load-weird-sizes.ll
@@ -5,8 +5,8 @@
; RUN: llc -amdgpu-scalarize-global-loads=false -march=r600 -mcpu=cayman < %s | FileCheck -check-prefix=R600 -check-prefix=CM -check-prefix=FUNC %s
; FUNC-LABEL: {{^}}load_i24:
-; SI: {{flat|buffer}}_load_ubyte
-; SI: {{flat|buffer}}_load_ushort
+; SI-DAG: {{flat|buffer}}_load_ubyte
+; SI-DAG: {{flat|buffer}}_load_ushort
; SI: {{flat|buffer}}_store_dword
define amdgpu_kernel void @load_i24(i32 addrspace(1)* %out, i24 addrspace(1)* %in) #0 {
%1 = load i24, i24 addrspace(1)* %in