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/memcpy-2.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/memcpy-2.c (limited to 'gcc/testsuite/gcc.dg/memcpy-2.c') diff --git a/gcc/testsuite/gcc.dg/memcpy-2.c b/gcc/testsuite/gcc.dg/memcpy-2.c new file mode 100644 index 000000000..24464abd4 --- /dev/null +++ b/gcc/testsuite/gcc.dg/memcpy-2.c @@ -0,0 +1,25 @@ +/* PR middle-end/38454 */ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ + +typedef __SIZE_TYPE__ size_t; + +extern inline __attribute__((gnu_inline, always_inline, artificial)) void * +memcpy (void *__restrict dest, const void *__restrict src, size_t len) +{ + return __builtin___memcpy_chk (dest, /* { dg-warning "will always overflow destination buffer" } */ + src, len, __builtin_object_size (dest, 0)); +} + +struct S { char buf[10]; } s; + +void +foo (void) +{ + char buf[12]; + char *p = buf + 4; + struct S *q = (struct S *) p; + memcpy (q, &s, sizeof (s)); +} + +/* { dg-final { scan-assembler "__memcpy_chk" } } */ -- cgit v1.2.3