diff options
author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
---|---|---|
committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s16b.c | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s16b.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s16b.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s16b.c b/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s16b.c new file mode 100644 index 000000000..1344ca955 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/vect/vect-reduc-dot-s16b.c @@ -0,0 +1,57 @@ +/* { dg-require-effective-target vect_int } */ + +#include <stdarg.h> +#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->short->int dot product. Should be vectorized on architectures + supporting vectorized multiplication of two short args with short result, + e.g "mulv4hi3" and widenning sum */ +__attribute__ ((noinline)) int +foo (int len) +{ + int i; + int result = 0; + short prod; + + for (i = 0; i < len; i++) + { + prod = X[i] * Y[i]; + result += prod; + } + return result; +} + +int +main (void) +{ + int i, dot; + + check_vect (); + + for (i = 0; i < N; i++) + { + X[i] = i; + Y[i] = 64 - i; + __asm__ volatile (""); + } + + dot = foo (N); + if (dot != DOT) + abort (); + + return 0; +} + +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target { vect_short_mult && { vect_widen_sum_hi_to_si || vect_unpack } } } } } */ +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { ! vect_short_mult } } } } */ +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" { target { { ! vect_widen_sum_hi_to_si } && { ! vect_unpack } } } } } */ + +/* { dg-final { cleanup-tree-dump "vect" } } */ + |