R600/SI: Minor improvements to test.

Use CHECK-LABEL, add an i64 version, check store instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197293 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/R600/load64.ll

@@ -1,18 +1,28 @@
 ; RUN: llc < %s -march=r600 -mcpu=tahiti -verify-machineinstrs | FileCheck %s
 
 ; load a f64 value from the global address space.
-; CHECK: @load_f64
+; CHECK-LABEL: @load_f64:
 ; CHECK: BUFFER_LOAD_DWORDX2 v[{{[0-9]+:[0-9]+}}]
+; CHECK: BUFFER_STORE_DWORDX2 v[{{[0-9]+:[0-9]+}}]
 define void @load_f64(double addrspace(1)* %out, double addrspace(1)* %in) {
-entry:
-  %0 = load double addrspace(1)* %in
-  store double %0, double addrspace(1)* %out
+  %1 = load double addrspace(1)* %in
+  store double %1, double addrspace(1)* %out
+  ret void
+}
+
+; CHECK-LABEL: @load_i64:
+; CHECK: BUFFER_LOAD_DWORDX2 v[{{[0-9]+:[0-9]+}}]
+; CHECK: BUFFER_STORE_DWORDX2 v[{{[0-9]+:[0-9]+}}]
+define void @load_i64(i64 addrspace(1)* %out, i64 addrspace(1)* %in) {
+  %tmp = load i64 addrspace(1)* %in
+  store i64 %tmp, i64 addrspace(1)* %out, align 8
   ret void
 }
 
 ; Load a f64 value from the constant address space.
-; CHECK: @load_const_addrspace_f64
+; CHECK-LABEL: @load_const_addrspace_f64:
 ; CHECK: S_LOAD_DWORDX2 s[{{[0-9]+:[0-9]+}}]
+; CHECK: BUFFER_STORE_DWORDX2 v[{{[0-9]+:[0-9]+}}]
 define void @load_const_addrspace_f64(double addrspace(1)* %out, double addrspace(2)* %in) {
   %1 = load double addrspace(2)* %in
   store double %1, double addrspace(1)* %out