DAGCombiner: Check shouldReduceLoadWidth before combining (and (load), x) -> extload

[oota-llvm.git] / test / CodeGen / AMDGPU / no-shrink-extloads.ll

diff --git a/test/CodeGen/AMDGPU/no-shrink-extloads.ll b/test/CodeGen/AMDGPU/no-shrink-extloads.ll
index e4328ecbaca8d50e715d0338bebe1ec02a86a3ee..f81911aafe22023b0afffd401a504dcd3be1fe77 100644 (file)
--- a/test/CodeGen/AMDGPU/no-shrink-extloads.ll
+++ b/test/CodeGen/AMDGPU/no-shrink-extloads.ll
@@ -189,3 +189,15 @@ define void @truncate_buffer_load_i64_to_i8(i8 addrspace(1)* %out, i64 addrspace
   store i8 %trunc, i8 addrspace(1)* %gep.out
   ret void
 }
+
+; FUNC-LABEL: {{^}}smrd_mask_i32_to_i16
+; SI: s_load_dword [[LOAD:s[0-9]+]], s[{{[0-9]+}}:{{[0-9]+}}], 0x0
+; SI: s_waitcnt lgkmcnt(0)
+; SI: s_and_b32 s{{[0-9]+}}, [[LOAD]], 0xffff
+define void @smrd_mask_i32_to_i16(i32 addrspace(1)* %out, i32 addrspace(2)* %in) {
+entry:
+  %val = load i32, i32 addrspace(2)* %in
+  %mask = and i32 %val, 65535
+  store i32 %mask, i32 addrspace(1)* %out
+  ret void
+}