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/pr41963.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/pr41963.c (limited to 'gcc/testsuite/gcc.dg/pr41963.c') diff --git a/gcc/testsuite/gcc.dg/pr41963.c b/gcc/testsuite/gcc.dg/pr41963.c new file mode 100644 index 000000000..408a3d24c --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr41963.c @@ -0,0 +1,36 @@ +/* { dg-do run } */ +/* { dg-options "-O2 -ffast-math" } */ + +extern float fabsf(float); +extern float sqrtf(float); + +static __attribute__((noinline)) void f (float *dst, float *src) +{ + int i, j; + for (i = 0; i < 2; i++) + { + float len; + dst[0] = src[0]; + dst[1] = src[1]; + len = sqrtf (dst[0] * dst[0] + dst[1] * dst[1]); + if (len > 0.5f) + { + len = 1.0f / len; + dst[0] *= len; + dst[1] *= len; + } + } +} + +extern void abort (void); + +int main() +{ + float dst[2], src[2]; + src[0] = 2.0f; + src[1] = 5.0f; + f (dst, src); + if (fabsf (dst[0] * dst[0] + dst[1] * dst[1] - 1.0f) > 0.01f) + abort (); + return 0; +} -- cgit v1.2.3