obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 38 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/i386/clobbers.c b/gcc/testsuite/gcc.target/i386/clobbers.c
new file mode 100644
index 000000000..17987db97
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/clobbers.c
@@ -0,0 +1,38 @@
+/* Test asm clobbers on x86. */
+
+/* { dg-do run } */
+
+extern void abort (void);
+
+int main ()
+{
+        int i;
+        __asm__ ("movl $1,%0\n\txorl %%eax,%%eax" : "=r" (i) : : "eax");
+        if (i != 1)
+                abort ();
+	/* On darwin you can't call external functions from non-pic code,
+	   however, clobbering ebx isn't valid in pic code. Instead of
+	   disabling the whole test, just disable the ebx clobbering part.
+	   Ditto for any x86 system that is ilp32 && pic.
+	*/
+#if !(defined (__MACH__))
+#if ! defined (__PIC__) || defined (__LP64__)
+        __asm__ ("movl $1,%0\n\txorl %%ebx,%%ebx" : "=r" (i) : : "ebx");
+        if (i != 1)
+                abort ();
+#endif /* ! pic || lp64 */
+#endif
+        __asm__ ("movl $1,%0\n\txorl %%ecx,%%ecx" : "=r" (i) : : "ecx");
+        if (i != 1)
+                abort ();
+        __asm__ ("movl $1,%0\n\txorl %%edx,%%edx" : "=r" (i) : : "edx");
+        if (i != 1)
+                abort ();
+        __asm__ ("movl $1,%0\n\txorl %%esi,%%esi" : "=r" (i) : : "esi");
+        if (i != 1)
+                abort ();
+        __asm__ ("movl $1,%0\n\txorl %%edi,%%edi" : "=r" (i) : : "edi");
+        if (i != 1)
+                abort ();
+        return 0;
+}