diff options
author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
---|---|---|
committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/vect/vect-52.c | |
download | cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.bz2 cbb-gcc-4.6.4-554fd8c5195424bdbcabf5de30fdc183aba391bd.tar.xz |
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
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.
Diffstat (limited to 'gcc/testsuite/gcc.dg/vect/vect-52.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/vect/vect-52.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/vect/vect-52.c b/gcc/testsuite/gcc.dg/vect/vect-52.c new file mode 100644 index 000000000..af485abbd --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/vect-52.c @@ -0,0 +1,61 @@ +/* { dg-require-effective-target vect_float } */ + +#include <stdarg.h> +#include "tree-vect.h" + +#define N 256 + +/* Unaligned pointer read accesses, aligned write access. + The loop bound is unknown. + No aliasing problems. + vect-60.c is similar to this one with one difference: + the alignment of the read accesses is known. + vect-48.c is similar to this one with one difference: + the loop bound is known. + vect-53.c is similar to this one with one difference: + aliasing is a problem. */ + +__attribute__ ((noinline)) int +main1 (int n, float *pb, float *pc) +{ + float pa[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); + int i; + + for (i = 0; i < n; i++) + { + pa[i] = pb[i] * pc[i]; + } + + /* check results: */ + for (i = 0; i < N; i++) + { + if (pa[i] != (pb[i] * pc[i])) + abort (); + } + + return 0; +} + +int main (void) +{ + int i; + float a[N] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))); + float b[N+1] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60}; + float c[N+1] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20}; + + check_vect (); + + main1 (N,&b[1],c); + main1 (N,&b[1],&c[1]); + + return 0; +} + +/* For targets that don't support misaligned loads we version for the two loads. + (The store is aligned). */ + +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */ +/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 2 "vect" { xfail vect_no_align } } } */ +/* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 0 "vect" } } */ +/* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 2 "vect" { target vect_no_align } } } */ +/* { dg-final { cleanup-tree-dump "vect" } } */ |