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-rw-r--r--gcc-4.9/gcc/testsuite/gcc.target/i386/align-main-1.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/align-main-1.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/align-main-1.c
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+++ b/gcc-4.9/gcc/testsuite/gcc.target/i386/align-main-1.c
@@ -0,0 +1,28 @@
+/* Test for stack alignment when PREFERRED_STACK_BOUNDARY < alignment
+ of local variable. */
+/* { dg-do compile } */
+/* { dg-options "-O2 -mpreferred-stack-boundary=6 -mincoming-stack-boundary=6" } */
+/* { dg-final { scan-assembler "and\[lq\]?\[\\t \]*\\$-128,\[\\t \]*%\[re\]?sp" } } */
+/* { dg-final { scan-assembler-not "and\[lq\]?\[\\t \]*\\$-64,\[\\t \]*%\[re\]?sp" } } */
+/* { dg-skip-if "Options about stack-boundary aren't support" { x86_64-*-mingw* } { "*" } { "" } } */
+
+#include <stddef.h>
+
+#define ALIGNMENT 128
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+extern void abort(void);
+
+__attribute__ ((noinline))
+void check(void * a)
+{
+ if (((ptrdiff_t)a & (ALIGNMENT-1)) != 0)
+ abort();
+}
+
+int main()
+{
+ aligned a = 1;
+ check(&a);
+ return 0;
+}