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/vect/vect-reduc-dot-s16a.c | 56 +++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s16a.c (limited to 'gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s16a.c') diff --git a/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s16a.c b/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s16a.c new file mode 100644 index 000000000..c98634416 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s16a.c @@ -0,0 +1,56 @@ +/* { dg-require-effective-target vect_int } */ + +#include +#include "tree-vect.h" + +#define N 64 +#define DOT 43680 + +signed short X[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); +signed short Y[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); + +/* short->int->int dot product. + Detected as a dot-product pattern. + Vectorized on targets that support dot-product for signed shorts. */ + +__attribute__ ((noinline)) int +foo (int len) +{ + int i; + int result = 0; + + for (i = 0; i < len; i++) + { + result += (X[i] * Y[i]); + } + return result; +} + + +int +main (void) +{ + int i; + int dot; + + check_vect (); + + for (i = 0; i < N; i++) + { + X[i] = i; + Y[i] = N - i; + __asm__ volatile (""); + } + + dot = foo (N); + if (dot != DOT) + abort (); + + return 0; +} + +/* { dg-final { scan-tree-dump-times "vect_recog_dot_prod_pattern: detected" 1 "vect" } } */ +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_sdot_hi } } } */ +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target vect_widen_mult_hi_to_si } } } */ +/* { dg-final { cleanup-tree-dump "vect" } } */ + -- cgit v1.2.3