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/20030826-2.c | 64 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/20030826-2.c (limited to 'gcc/testsuite/gcc.dg/20030826-2.c') diff --git a/gcc/testsuite/gcc.dg/20030826-2.c b/gcc/testsuite/gcc.dg/20030826-2.c new file mode 100644 index 000000000..32db09195 --- /dev/null +++ b/gcc/testsuite/gcc.dg/20030826-2.c @@ -0,0 +1,64 @@ +/* { dg-do run } */ +/* { dg-options "-O2 -fomit-frame-pointer" } */ +/* { dg-options "-O2 -fomit-frame-pointer -march=i386" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */ + +extern void abort (void); +extern void exit (int); + +struct S +{ + int *a; + unsigned char *b, c; +}; + +int u, v, w; + +void +foo (unsigned short x) +{ + u += x; +} + +int +bar (struct S **x, int *y) +{ + w += *y; + *y = w + 25; + return 0; +} + +int +baz (struct S **x) +{ + struct S *y = *x; + unsigned char *a = y->b; + + foo (*a); + + if (__builtin_expect (y->c != 0 || y->a == &v, 0)) + return 1; + + if (__builtin_expect (*a == 1, 0)) + { + int a, b = bar (x, &a); + + if (a) + return b; + } + + return 0; +} + +int +main (void) +{ + struct S a, *b = &a; + unsigned char c; + + __builtin_memset (b, 0, sizeof (a)); + a.a = &v; + a.b = &c; + if (baz (&b) != 1) + abort (); + exit (0); +} -- cgit v1.2.3