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| author | Li Feng <nemokingdom@gmail.com> | 2009-03-19 06:49:14 +0000 |
|---|---|---|
| committer | Sebastian Pop <spop@gcc.gnu.org> | 2009-03-19 06:49:14 +0000 |
| commit | 9e517d61f7635494e97f23970570de7c78a824ef (patch) | |
| tree | 7910083b090bdde0f5998511e1a650e8c41540d4 /gcc/tree-data-ref.c | |
| parent | 8ef20026dc352e6a1fccae8052bf7bdc009742bc (diff) | |
| download | gcc-9e517d61f7635494e97f23970570de7c78a824ef.zip gcc-9e517d61f7635494e97f23970570de7c78a824ef.tar.gz gcc-9e517d61f7635494e97f23970570de7c78a824ef.tar.bz2 | |
re PR middle-end/39500 (autopar fails to parallel)
2009-03-19 Li Feng <nemokingdom@gmail.com>
PR middle-end/39500
* tree-data-ref.c (analyze_subscript_affine_affine): There is no
dependence if the first conflict is after niter iterations.
testsuite/
* gcc.dg/autopar/pr39500-1.c: New.
* gcc.dg/autopar/pr39500-2.c: New.
From-SVN: r144952
Diffstat (limited to 'gcc/tree-data-ref.c')
| -rw-r--r-- | gcc/tree-data-ref.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c index 7c06260..ea67f1d 100644 --- a/gcc/tree-data-ref.c +++ b/gcc/tree-data-ref.c @@ -2302,7 +2302,7 @@ analyze_subscript_affine_affine (tree chrec_a, /* If the overlap occurs outside of the bounds of the loop, there is no dependence. */ - if (x1 > niter || y1 > niter) + if (x1 >= niter || y1 >= niter) { *overlaps_a = conflict_fn_no_dependence (); *overlaps_b = conflict_fn_no_dependence (); |