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| author | Rong Xu <xur@google.com> | 2014-07-21 16:47:22 -0700 |
|---|---|---|
| committer | Rong Xu <xur@google.com> | 2014-07-29 15:31:03 -0700 |
| commit | 38a8aecfb882072900434499696b5c32a2274515 (patch) | |
| tree | 2aac97f0ae24b03cd98c1a06e989c031c173f889 /gcc-4.9/gcc/tree-vect-data-refs.c | |
| parent | c231900e5dcc14d8296bd9f62b45997a49d4d5e7 (diff) | |
| download | toolchain_gcc-38a8aecfb882072900434499696b5c32a2274515.tar.gz toolchain_gcc-38a8aecfb882072900434499696b5c32a2274515.tar.bz2 toolchain_gcc-38a8aecfb882072900434499696b5c32a2274515.zip | |
[4.9] Switch gcc-4.9 to use google/gcc-4_9 branch.
This source drop uses svn version r212828 of google/gcc-4.9 branch.
We also cherry-picked r213062, r213063 and r213064 to fix windows
build issues.
All gcc-4.9 patches before July 3rd are ported to google/gcc-4.9.
The following prior commits has not been merged to google branch yet.
(They are included in this commit).
e7af147f979e657fe2df00808e5b4319b0e088c6,
baf87df3cb2683649ba7e9872362a7e721117c23, and
c231900e5dcc14d8296bd9f62b45997a49d4d5e7.
Change-Id: I4bea3ea470387ff751c2be4cb0d4a12059b9299b
Diffstat (limited to 'gcc-4.9/gcc/tree-vect-data-refs.c')
| -rw-r--r-- | gcc-4.9/gcc/tree-vect-data-refs.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/gcc-4.9/gcc/tree-vect-data-refs.c b/gcc-4.9/gcc/tree-vect-data-refs.c index 274cdbdcf..6622bd84d 100644 --- a/gcc-4.9/gcc/tree-vect-data-refs.c +++ b/gcc-4.9/gcc/tree-vect-data-refs.c @@ -373,11 +373,14 @@ vect_analyze_data_ref_dependence (struct data_dependence_relation *ddr, .. = a[i+1]; where we will end up loading { a[i], a[i+1] } once, make sure that inserting group loads before the first load and - stores after the last store will do the right thing. */ - if ((STMT_VINFO_GROUPED_ACCESS (stmtinfo_a) - && GROUP_SAME_DR_STMT (stmtinfo_a)) - || (STMT_VINFO_GROUPED_ACCESS (stmtinfo_b) - && GROUP_SAME_DR_STMT (stmtinfo_b))) + stores after the last store will do the right thing. + Similar for groups like + a[i] = ...; + ... = a[i]; + a[i+1] = ...; + where loads from the group interleave with the store. */ + if (STMT_VINFO_GROUPED_ACCESS (stmtinfo_a) + || STMT_VINFO_GROUPED_ACCESS (stmtinfo_b)) { gimple earlier_stmt; earlier_stmt = get_earlier_stmt (DR_STMT (dra), DR_STMT (drb)); |