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-78-alignchecks.c | 57 +++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/vect/vect-78-alignchecks.c (limited to 'gcc/testsuite/gcc.dg/vect/vect-78-alignchecks.c') diff --git a/gcc/testsuite/gcc.dg/vect/vect-78-alignchecks.c b/gcc/testsuite/gcc.dg/vect/vect-78-alignchecks.c new file mode 100644 index 000000000..71c01ae1c --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/vect-78-alignchecks.c @@ -0,0 +1,57 @@ +/* { dg-require-effective-target vect_int } */ + +#include +#include "tree-vect.h" + +#define N 8 +#define OFF 8 + +/* Check handling of accesses for which the "initial condition" - + the expression that represents the first location accessed - is + more involved than just an ssa_name. */ + +int ib[N+OFF] __attribute__ ((__aligned__(__BIGGEST_ALIGNMENT__))) = {0, 1, 3, 5, 7, 11, 13, 17, 0, 2, 6, 10, 14, 22, 26, 34}; +int off = 8; + +__attribute__ ((noinline)) +int main1 (int *ib) +{ + int i; + int ia[N]; + + for (i = 0; i < N; i++) + { + ia[i] = ib[i+off]; + } + + + /* check results: */ + for (i = 0; i < N; i++) + { + if (ia[i] != ib[i+off]) + abort (); + } + + return 0; +} + +int main (void) +{ + check_vect (); + + main1 (ib); + return 0; +} + +/* For targets that don't support misaligned loads we version for the load. + The store is aligned if alignment can be forced on the stack. Otherwise, we need to + peel the loop in order to align the store. For targets that can't align variables + using peeling (don't guarantee natural alignment) versioning the loop is required + both for the load and the store. */ + +/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */ +/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 1 "vect" { xfail { vect_no_align } } } } */ +/* { dg-final { scan-tree-dump-times "Alignment of access forced using peeling" 1 "vect" { target { {! vect_no_align} && { unaligned_stack && vector_alignment_reachable } } } } } */ +/* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 1 "vect" { target { { {! unaligned_stack} && vect_no_align } || {unaligned_stack && { {! vector_alignment_reachable} && {! vect_no_align} } } } } } } */ +/* { dg-final { scan-tree-dump-times "Alignment of access forced using versioning." 2 "vect" { target { { unaligned_stack && { vector_alignment_reachable && vect_no_align } } || {unaligned_stack && { {! vector_alignment_reachable} && vect_no_align } } } } } } */ +/* { dg-final { cleanup-tree-dump "vect" } } */ -- cgit v1.2.3