From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; 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. --- gcc/testsuite/gcc.c-torture/execute/pr49279.c | 35 +++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 gcc/testsuite/gcc.c-torture/execute/pr49279.c (limited to 'gcc/testsuite/gcc.c-torture/execute/pr49279.c') diff --git a/gcc/testsuite/gcc.c-torture/execute/pr49279.c b/gcc/testsuite/gcc.c-torture/execute/pr49279.c new file mode 100644 index 000000000..7f2c0d221 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/pr49279.c @@ -0,0 +1,35 @@ +/* PR tree-optimization/49279 */ +extern void abort (void); + +struct S { int a; int *__restrict p; }; + +__attribute__((noinline, noclone)) +struct S *bar (struct S *p) +{ + struct S *r; + asm volatile ("" : "=r" (r) : "0" (p) : "memory"); + return r; +} + +__attribute__((noinline, noclone)) +int +foo (int *p, int *q) +{ + struct S s, *t; + s.a = 1; + s.p = p; + t = bar (&s); + t->p = q; + s.p[0] = 0; + t->p[0] = 1; + return s.p[0]; +} + +int +main () +{ + int a, b; + if (foo (&a, &b) != 1) + abort (); + return 0; +} -- cgit v1.2.3