1 files changed, 26 insertions, 0 deletions
diff --git a/test/CodeGen/AMDGPU/sext-eliminate.ll b/test/CodeGen/AMDGPU/sext-eliminate.ll
new file mode 100644
index 000000000000..7dc6eb87f6b5
--- /dev/null
+++ b/test/CodeGen/AMDGPU/sext-eliminate.ll
@@ -0,0 +1,26 @@
+; RUN: llc -march=r600 -mcpu=cypress -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
+
+
+; FUNC-LABEL: {{^}}sext_in_reg_i1_i32_add:
+
+; EG: MEM_{{.*}} STORE_{{.*}} [[RES:T[0-9]+\.[XYZW]]], [[ADDR:T[0-9]+.[XYZW]]]
+; EG: SUB_INT {{[* ]*}}[[RES]]
+; EG-NOT: BFE
+define void @sext_in_reg_i1_i32_add(i32 addrspace(1)* %out, i1 %a, i32 %b) {
+  %sext = sext i1 %a to i32
+  %res = add i32 %b, %sext
+  store i32 %res, i32 addrspace(1)* %out
+  ret void
+}
+
+; FUNC-LABEL: {{^}}sext_in_reg_i1_i32_sub:
+
+; EG: MEM_{{.*}} STORE_{{.*}} [[RES:T[0-9]+\.[XYZW]]], [[ADDR:T[0-9]+.[XYZW]]]
+; EG: ADD_INT {{[* ]*}}[[RES]]
+; EG-NOT: BFE
+define void @sext_in_reg_i1_i32_sub(i32 addrspace(1)* %out, i1 %a, i32 %b) {
+  %sext = sext i1 %a to i32
+  %res = sub i32 %b, %sext
+  store i32 %res, i32 addrspace(1)* %out
+  ret void
+}