FileCheckize volatile test

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174627 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/volatile.c

@@ -1,6 +1,4 @@
-// RUN: %clang_cc1 -emit-llvm < %s -o %t
-// RUN: grep volatile %t | count 28
-// RUN: grep "memcpy.*, i1 true" %t | count 6
+// RUN: %clang_cc1 -emit-llvm < %s | FileCheck %s
 
 // The number 28 comes from the current codegen for volatile loads;
 // if this number changes, it's not necessarily something wrong, but
@@ -47,54 +45,90 @@ int main() {
   // load
   i=S;
   i=vS;
+// CHECK: load volatile
   i=*pS;
   i=*pvS;
+// CHECK: load volatile
   i=A[2];
   i=vA[2];
+// CHECK: load volatile
   i=F.x;
   i=vF.x;
+// CHECK: load volatile
   i=F2.x;
   i=vF2.x;
+// CHECK: load volatile
   i=vpF2->x;
+// CHECK: load volatile
   i=F3.x.y;
   i=vF3.x.y;
+// CHECK: load volatile
   i=BF.x;
   i=vBF.x;
+// CHECK: load volatile
   i=V[3];
   i=vV[3];
+// CHECK: load volatile
   i=VE.yx[1];
   i=vVE.zy[1];
+// CHECK: load volatile
   i = aggFct().x; // Note: not volatile
   i=vtS;
+// CHECK: load volatile
 
 
   // store
   S=i;
   vS=i;
+// CHECK: store volatile
   *pS=i;
   *pvS=i;
+// CHECK: store volatile
   A[2]=i;
   vA[2]=i;
+// CHECK: store volatile
   F.x=i;
   vF.x=i;
+// CHECK: store volatile
   F2.x=i;
   vF2.x=i;
+// CHECK: store volatile
   vpF2->x=i;
+// CHECK: store volatile
   vF3.x.y=i;
+// CHECK: store volatile
   BF.x=i;
   vBF.x=i;
+// CHECK: store volatile
   V[3]=i;
   vV[3]=i;
+// CHECK: store volatile
   vtS=i;
+// CHECK: store volatile
 
   // other ops:
   ++S;
   ++vS;
+// CHECK: load volatile
+// CHECK: store volatile
   i+=S;
   i+=vS;
+// CHECK: load volatile
   ++vtS;
+// CHECK: load volatile
+// CHECK: store volatile
   (void)vF2;
+  // From vF2 to a temporary
+// CHECK: call void @llvm.memcpy{{.*}} i1 true
   vF2 = vF2;
+  // vF2 to itself
+// CHECK: call void @llvm.memcpy{{.*}} i1 true
   vF2 = vF2 = vF2;
+  // vF2 to itself twice
+// CHECK: call void @llvm.memcpy{{.*}} i1 true
+// CHECK: call void @llvm.memcpy{{.*}} i1 true
   vF2 = (vF2, vF2);
+  // vF2 to a temporary, then vF2 to itself
+// CHECK: call void @llvm.memcpy{{.*}} i1 true
+// CHECK: call void @llvm.memcpy{{.*}} i1 true
 }