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/pr46880.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 gcc/testsuite/gcc.target/i386/pr46880.c (limited to 'gcc/testsuite/gcc.target/i386/pr46880.c') diff --git a/gcc/testsuite/gcc.target/i386/pr46880.c b/gcc/testsuite/gcc.target/i386/pr46880.c new file mode 100644 index 000000000..bc6d64299 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr46880.c @@ -0,0 +1,28 @@ +/* PR target/46880 */ +/* { dg-do run } */ +/* { dg-options "-O2 -fno-strict-aliasing -msse2" } */ +/* { dg-require-effective-target sse2_runtime } */ + +typedef double __m128d __attribute__ ((__vector_size__ (16), __may_alias__)); +typedef double (*T)[2]; + +static __attribute__ ((noinline, noclone)) __m128d +foo (__m128d c, __m128d d) +{ + T cp = (T) &c; + T dp = (T) &d; + __m128d e = { (*cp)[1], (*dp)[1] }; + return e; +} + +int +main () +{ + __m128d c = { 1.0, 2.0 }; + __m128d d = { 3.0, 4.0 }; + union { __m128d x; double d[2]; } u; + u.x = foo (c, d); + if (u.d[0] != 2.0 || u.d[1] != 4.0) + __builtin_abort (); + return 0; +} -- cgit v1.2.3