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/torture/pr37868.c | 39 ++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/torture/pr37868.c (limited to 'gcc/testsuite/gcc.dg/torture/pr37868.c') diff --git a/gcc/testsuite/gcc.dg/torture/pr37868.c b/gcc/testsuite/gcc.dg/torture/pr37868.c new file mode 100644 index 000000000..1f89dff2f --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr37868.c @@ -0,0 +1,39 @@ +/* { dg-do run } */ +/* { dg-options "-fno-strict-aliasing" } */ +/* { dg-skip-if "unaligned access" { sparc*-*-* } "*" "" } */ + +extern void abort (void); +#if (__SIZEOF_INT__ <= 2) +struct X { + unsigned char pad : 4; + unsigned int a : 16; + unsigned int b : 8; + unsigned int c : 6; +} __attribute__((packed)); +#else +struct X { + unsigned char pad : 4; + unsigned int a : 32; + unsigned int b : 24; + unsigned int c : 6; +} __attribute__((packed)); + +#endif + + +int main (void) +{ + struct X x; + unsigned int bad_bits; + + x.pad = -1; + x.a = -1; + x.b = -1; + x.c = -1; + + bad_bits = ((unsigned int)-1) ^ *(1+(unsigned int *) &x); + if (bad_bits != 0) + abort (); + return 0; +} + -- cgit v1.2.3