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/opt-1.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 gcc/testsuite/gcc.target/i386/opt-1.c (limited to 'gcc/testsuite/gcc.target/i386/opt-1.c') diff --git a/gcc/testsuite/gcc.target/i386/opt-1.c b/gcc/testsuite/gcc.target/i386/opt-1.c new file mode 100644 index 000000000..28e2ef38c --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/opt-1.c @@ -0,0 +1,35 @@ +/* Test the attribute((optimize)) really works. Do this test by checking + whether we vectorize a simple loop. */ +/* { dg-do compile } */ +/* { dg-options "-O1 -msse2 -mfpmath=sse -march=k8" } */ +/* { dg-final { scan-assembler "prefetcht0" } } */ +/* { dg-final { scan-assembler "addps" } } */ +/* { dg-final { scan-assembler "subss" } } */ + +#define SIZE 10240 +float a[SIZE] __attribute__((__aligned__(32))); +float b[SIZE] __attribute__((__aligned__(32))); +float c[SIZE] __attribute__((__aligned__(32))); + +/* This should vectorize. */ +void opt3 (void) __attribute__((__optimize__(3,"unroll-all-loops,-fprefetch-loop-arrays"))); + +void +opt3 (void) +{ + int i; + + for (i = 0; i < SIZE; i++) + a[i] = b[i] + c[i]; +} + +/* This should not vectorize. */ +void +not_opt3 (void) +{ + int i; + + for (i = 0; i < SIZE; i++) + a[i] = b[i] - c[i]; +} + -- cgit v1.2.3