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/20050307-1.c | 52 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/20050307-1.c (limited to 'gcc/testsuite/gcc.dg/20050307-1.c') diff --git a/gcc/testsuite/gcc.dg/20050307-1.c b/gcc/testsuite/gcc.dg/20050307-1.c new file mode 100644 index 000000000..0e8dac69a --- /dev/null +++ b/gcc/testsuite/gcc.dg/20050307-1.c @@ -0,0 +1,52 @@ +/* PR target/20322 */ + +extern void abort (void); + +typedef unsigned long T; +typedef struct +{ + T a, b; + unsigned char c, d; +} S; + +#define M (sizeof (T) * 4) + +S __attribute__((noinline)) +foo (T x, T y) +{ + S e; + T f[2], g; + + e.b = (x & (~(T) 0 >> M)) * (y & (~(T) 0 >> M)); + e.a = (x >> M) * (y >> M); + + f[0] = (x & (~(T) 0 >> M)) * (y >> M); + f[1] = (x >> M) * (y & (~(T) 0 >> M)); + + g = e.b; + e.b += (f[0] & (~(T) 0 >> M)) << M; + if (e.b < g) + e.a++; + + g = e.b; + e.b += (f[1] & (~(T) 0 >> M)) << M; + if (e.b < g) + e.a++; + + e.a += (f[0] >> M); + e.a += (f[1] >> M); + e.c = 1; + e.d = 0; + + return e; +} + +int +main (void) +{ + T x = 1UL << (M * 2 - 1); + S y = foo (1, x); + if (y.a || y.b != x || y.c != 1 || y.d) + abort (); + return 0; +} -- cgit v1.2.3