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.target/i386/pr20204.c | 34 +++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 gcc/testsuite/gcc.target/i386/pr20204.c (limited to 'gcc/testsuite/gcc.target/i386/pr20204.c') diff --git a/gcc/testsuite/gcc.target/i386/pr20204.c b/gcc/testsuite/gcc.target/i386/pr20204.c new file mode 100644 index 000000000..ca97a3ae9 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr20204.c @@ -0,0 +1,34 @@ +/* { dg-do run } */ +/* { dg-options "-O2" } */ + +void *x (void *pdst, const void *psrc, unsigned int pn) +{ + register void *return_dst = pdst; + register unsigned char *dst = pdst; + register unsigned const char *src = psrc; + register int n __asm__ ("ebx") = pn; + + if (src < dst && dst < src + n) + { + src += n; + dst += n; + while (n--) + *--dst = *--src; + return return_dst; + } + + while (n >= 16) n--; + + return return_dst; +} +extern void abort (); +extern void exit (int); +char xx[30] = "abc"; +int main (void) +{ + char yy[30] = "aab"; + + if (x (xx + 1, xx, 2) != xx + 1 || memcmp (xx, yy, sizeof (yy)) != 0) + abort (); + exit (0); +} -- cgit v1.2.3