-; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s --check-prefix=R600-CHECK
-; RUN: llc < %s -march=r600 -mcpu=SI -verify-machineinstrs | FileCheck %s --check-prefix=SI-CHECK
-
-; R600-CHECK: @fsub_f32
-; R600-CHECK: ADD {{\** *}}T{{[0-9]+\.[XYZW]}}, KC0[2].Z, -KC0[2].W
-; SI-CHECK: @fsub_f32
-; SI-CHECK: V_SUB_F32
-define void @fsub_f32(float addrspace(1)* %out, float %a, float %b) {
-entry:
- %0 = fsub float %a, %b
- store float %0, float addrspace(1)* %out
+; RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=R600 -check-prefix=FUNC %s
+; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
+
+
+; FUNC-LABEL: @v_fsub_f32
+; SI: V_SUBREV_F32_e32 {{v[0-9]+}}, {{v[0-9]+}}, {{v[0-9]+}}
+define void @v_fsub_f32(float addrspace(1)* %out, float addrspace(1)* %in) {
+ %b_ptr = getelementptr float addrspace(1)* %in, i32 1
+ %a = load float addrspace(1)* %in, align 4
+ %b = load float addrspace(1)* %b_ptr, align 4
+ %result = fsub float %a, %b
+ store float %result, float addrspace(1)* %out, align 4
+ ret void
+}
+
+; FUNC-LABEL: @s_fsub_f32
+; R600: ADD {{\** *}}T{{[0-9]+\.[XYZW]}}, KC0[2].Z, -KC0[2].W
+
+; SI: V_SUB_F32_e32 {{v[0-9]+}}, {{s[0-9]+}}, {{v[0-9]+}}
+define void @s_fsub_f32(float addrspace(1)* %out, float %a, float %b) {
+ %sub = fsub float %a, %b
+ store float %sub, float addrspace(1)* %out, align 4