commit c6dabb90d34d011cb7f96b7ae5c69600e9cf6818
author JF Bastien <jfb@google.com> Thu Jul 18 06:11:45 2013 +0000
committer JF Bastien <jfb@google.com> Thu Jul 18 06:11:45 2013 +0000
tree 8dd005e10ae9acc8c27da5d97502fdb62195185d
parent b061ce2c7af5bb19294e16dbaf19a6b37ed2f716

Fix volatile _Complex alignment test on platforms where 64-bit floating point isn't 64-bit aligned

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

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186564 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/volatile-complex.c

diff --git a/test/CodeGen/volatile-complex.c b/test/CodeGen/volatile-complex.c
index 1240aef..15001e0 100644
--- a/test/CodeGen/volatile-complex.c
+++ b/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 @@
   // 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 @@
   // 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 @@
   // 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