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.dg/pr29215.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/pr29215.c (limited to 'gcc/testsuite/gcc.dg/pr29215.c') diff --git a/gcc/testsuite/gcc.dg/pr29215.c b/gcc/testsuite/gcc.dg/pr29215.c new file mode 100644 index 000000000..aa3f82ce0 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr29215.c @@ -0,0 +1,33 @@ +/* PR middle-end/29215 */ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-gimple" } */ + +char buf[5 * sizeof (int) + 1] __attribute__((aligned (__alignof__ (int)))); + +static void +foo (int arg1, int arg2, int arg3, int arg4, int arg5) +{ + __builtin_memcpy (buf, &arg1, sizeof (int)); + __builtin_memcpy (buf + sizeof (int), &arg2, sizeof (int)); + __builtin_memcpy (buf + 2 * sizeof (int), &arg3, sizeof (int)); + __builtin_memcpy (buf + 3 * sizeof (int), &arg4, sizeof (int)); + __builtin_memcpy (buf + 4 * sizeof (int), &arg5, sizeof (int)); +} + +int +main (void) +{ + union { char buf[4]; int i; } u; + u.i = 0; + u.buf[0] = 'a'; + u.buf[1] = 'b'; + u.buf[2] = 'c'; + u.buf[3] = 'd'; + foo (u.i, u.i, u.i, u.i, u.i); + buf[5 * sizeof (int)] = '\0'; + __builtin_puts (buf); + return 0; +} + +/* { dg-final { scan-tree-dump-not "memcpy" "gimple" } } */ +/* { dg-final { cleanup-tree-dump "gimple" } } */ -- cgit v1.2.3