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/pr27363.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/pr27363.c (limited to 'gcc/testsuite/gcc.dg/pr27363.c') diff --git a/gcc/testsuite/gcc.dg/pr27363.c b/gcc/testsuite/gcc.dg/pr27363.c new file mode 100644 index 000000000..40a3c6b35 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr27363.c @@ -0,0 +1,39 @@ +/* PR27363. CSE was breaking on the arm store multiple insn used for + structure copies. */ +/* { dg-do run } */ +/* { dg-options "-Os" } */ +extern void abort (void); + +struct snd_mask { + unsigned int bits[6]; +}; + +static int __attribute__((noinline)) +snd_mask_refine(struct snd_mask *mask) +{ + struct snd_mask old; + + old = *mask; + if (mask->bits[0]==0 && mask->bits[1]==0) + return 1; + + return old.bits[0] != mask->bits[0]; +} + +int main(int argc, char *argv[]) +{ + struct snd_mask mask; + + + mask.bits[0] = 23; + mask.bits[1] = 42; + mask.bits[2] = 0; + mask.bits[3] = 0; + mask.bits[4] = 0; + mask.bits[5] = 0; + + + if (snd_mask_refine(&mask)) + abort(); + return 0; +} -- cgit v1.2.3