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, 55 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/guality/pr43077-1.c b/gcc/testsuite/gcc.dg/guality/pr43077-1.c
new file mode 100644
index 000000000..d8d5eebe0
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/guality/pr43077-1.c
@@ -0,0 +1,55 @@
+/* PR debug/43077 */
+/* { dg-do run } */
+/* { dg-options "-g" } */
+
+int varb;
+
+int __attribute__((noinline))
+fn1 (void)
+{
+  int vara = (varb == 3);		/* { dg-final { gdb-test 11 "vara" "0" } } */
+  asm volatile ("" : : "g" (vara));	/* { dg-final { gdb-test 11 "varb" "2" } } */
+  return 0;
+}
+
+int __attribute__((noinline))
+fn2 (void)
+{
+  int vara = (varb == 3);		/* { dg-final { gdb-test 19 "vara" "1" } } */
+  asm volatile ("" : : "g" (vara));	/* { dg-final { gdb-test 19 "varb" "3" } } */
+  return 0;
+}
+
+int __attribute__((noinline))
+foo (unsigned long *p, unsigned long *q)
+{
+  int ret;
+  asm volatile ("" : "=r" (ret), "=r" (*p), "=r" (*q) : "0" (1), "1" (2), "2" (3));
+  return ret;
+}
+
+int __attribute__((noinline))
+fn3 (void)
+{
+  unsigned long a = 0, b = 0, c = 0;
+  a = foo (&b, &c);
+					/* { dg-final { gdb-test 42 "a" "1" } } */
+					/* { dg-final { gdb-test 42 "b" "2" } } */
+					/* { dg-final { gdb-test 42 "c" "3" } } */
+  unsigned long vara = a;		/* { dg-final { gdb-test 42 "vara" "1" } } */
+  unsigned long varb = b;		/* { dg-final { gdb-test 42 "varb" "2" } } */
+  unsigned long varc = c;		/* { dg-final { gdb-test 42 "varc" "3" } } */
+  asm volatile ("" : : "g" (vara), "g" (varb), "g" (varc));
+  return a;
+}
+
+int
+main (void)
+{
+  asm volatile ("" : "=r" (varb) : "0" (2));
+  fn1 ();
+  asm volatile ("" : "=r" (varb) : "0" (3));
+  fn2 ();
+  fn3 ();
+  return 0;
+}