Fix volatile _Complex alignment test on platforms where 64-bit floating point isn...

Add x86-64 triple, and check its datalayout. Also add some comments, and use the new CHECK-LABEL.

llvm-svn: 186564

diff --git a/clang/test/CodeGen/volatile-complex.c b/clang/test/CodeGen/volatile-complex.c
index 1240aef..15001e0 100644 (file)
--- a/clang/test/CodeGen/volatile-complex.c
+++ b/clang/test/CodeGen/volatile-complex.c
@@ -1,12 +1,20 @@
-// RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm %s -o - | FileCheck %s
+
+// Validate that volatile _Complex loads and stores are generated
+// properly, including their alignment (even when overaligned).
+//
+// This test assumes that floats are 32-bit aligned and doubles are
+// 64-bit aligned, and uses x86-64 as a target that should have this
+// datalayout.
+
+// CHECK: target datalayout = "{{.*}}f32:32:32-f64:64:64{{.*}}"
 
 volatile _Complex float cf;
 volatile _Complex double cd;
 volatile _Complex float cf32 __attribute__((aligned(32)));
 volatile _Complex double cd32 __attribute__((aligned(32)));
 
-
-// CHECK: define void @test_cf()
+// CHECK-LABEL: define void @test_cf()
 void test_cf() {
   // CHECK:      load volatile float* getelementptr inbounds ({ float, float }* @cf, i32 0, i32 0), align 4
   // CHECK-NEXT: load volatile float* getelementptr inbounds ({ float, float }* @cf, i32 0, i32 1), align 4
@@ -19,7 +27,7 @@ void test_cf() {
   // CHECK-NEXT: ret void
 }
 
-// CHECK: define void @test_cd()
+// CHECK-LABEL: define void @test_cd()
 void test_cd() {
   // CHECK:      load volatile double* getelementptr inbounds ({ double, double }* @cd, i32 0, i32 0), align 8
   // CHECK-NEXT: load volatile double* getelementptr inbounds ({ double, double }* @cd, i32 0, i32 1), align 8
@@ -32,7 +40,7 @@ void test_cd() {
   // CHECK-NEXT: ret void
 }
 
-// CHECK: define void @test_cf32()
+// CHECK-LABEL: define void @test_cf32()
 void test_cf32() {
   // CHECK:      load volatile float* getelementptr inbounds ({ float, float }* @cf32, i32 0, i32 0), align 32
   // CHECK-NEXT: load volatile float* getelementptr inbounds ({ float, float }* @cf32, i32 0, i32 1), align 4
@@ -45,7 +53,7 @@ void test_cf32() {
   // CHECK-NEXT: ret void
 }
 
-// CHECK: define void @test_cd32()
+// CHECK-LABEL: define void @test_cd32()
 void test_cd32() {
   // CHECK:      load volatile double* getelementptr inbounds ({ double, double }* @cd32, i32 0, i32 0), align 32
   // CHECK-NEXT: load volatile double* getelementptr inbounds ({ double, double }* @cd32, i32 0, i32 1), align 8