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/torture/pr45720.c | 50 ++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/torture/pr45720.c (limited to 'gcc/testsuite/gcc.dg/torture/pr45720.c') diff --git a/gcc/testsuite/gcc.dg/torture/pr45720.c b/gcc/testsuite/gcc.dg/torture/pr45720.c new file mode 100644 index 000000000..9de8d1117 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr45720.c @@ -0,0 +1,50 @@ +/* { dg-do run } */ +/* { dg-options "-ftree-vectorize" } */ + +float val[256]; +float x; +void __attribute__((noinline,noclone)) +foo(int len, int beg) +{ + int i; + for (i = len - 1; i >= beg; --i) + x += val[i] * 2; +} +void __attribute__((noinline,noclone)) +bar(void) +{ + int i; + for (i = 255; i >= 0; --i) + x += val[i] * 2; + for (i = 254; i >= 0; --i) + x += val[i] * 2; + for (i = 253; i >= 0; --i) + x += val[i] * 2; + for (i = 252; i >= 0; --i) + x += val[i] * 2; +} +float y[256]; +void __attribute__((noinline,noclone)) +foobar(void) +{ + int i; + for (i = 0; i < 252; ++i) + { + float l = 0; + l += val[255 - i] * 2; + l += val[254 - i] * 2; + l += val[253 - i] * 2; + l += val[252 - i] * 2; + y[i] = l; + } +} +int main() +{ + foo(256-1, 0); + foo(256-2, 0); + foo(256-3, 0); + foo(256-4, 0); + bar(); + foobar(); + return 0; +} -- cgit v1.2.3