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, 56 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/guality/sra-1.c b/gcc/testsuite/gcc.dg/guality/sra-1.c
new file mode 100644
index 000000000..e779d7ac8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/guality/sra-1.c
@@ -0,0 +1,56 @@
+/* PR debug/43983 */
+/* { dg-do run } */
+/* { dg-options "-g" } */
+
+struct A { int i; int j; };
+struct B { int : 4; int i : 12; int j : 12; int : 4; };
+
+__attribute__((noinline)) void
+bar (int x)
+{
+  asm volatile ("" : : "r" (x) : "memory");
+}
+
+__attribute__((noinline)) int
+f1 (int k)
+{
+  struct A a = { 4, k + 6 };
+  asm ("" : "+r" (a.i));
+  a.j++;
+  bar (a.i);		/* { dg-final { gdb-test 21 "a.i" "4" } } */
+  bar (a.j);		/* { dg-final { gdb-test 21 "a.j" "14" } } */
+  return a.i + a.j;
+}
+
+__attribute__((noinline)) int
+f2 (int k)
+{
+  int a[2] = { 4, k + 6 };
+  asm ("" : "+r" (a[0]));
+  a[1]++;
+  bar (a[0]);		/* { dg-final { gdb-test 32 "a\[0\]" "4" } } */
+  bar (a[1]);		/* { dg-final { gdb-test 32 "a\[1\]" "14" } } */
+  return a[0] + a[1];
+}
+
+__attribute__((noinline)) int
+f3 (int k)
+{
+  struct B a = { 4, k + 6 };
+  asm ("" : "+r" (a.i));
+  a.j++;
+  bar (a.i);		/* { dg-final { gdb-test 43 "a.i" "4" } } */
+  bar (a.j);		/* { dg-final { gdb-test 43 "a.j" "14" } } */
+  return a.i + a.j;
+}
+
+int
+main (void)
+{
+  int k;
+  asm ("" : "=r" (k) : "0" (7));
+  f1 (k);
+  f2 (k);
+  f3 (k);
+  return 0;
+}