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| author | Richard Biener <rguenther@suse.de> | 2015-01-14 08:32:18 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2015-01-14 08:32:18 +0000 |
| commit | 46b622cc2466685c60ef40256e49ad1fd8844cf7 (patch) | |
| tree | 3823ea455c765b3f8e0d525a262d120ea5adafc7 /gcc/tree-vect-loop.c | |
| parent | f7d2b51386ac44e68b07a2dac212a70d1bda0b02 (diff) | |
| download | gcc-46b622cc2466685c60ef40256e49ad1fd8844cf7.zip gcc-46b622cc2466685c60ef40256e49ad1fd8844cf7.tar.gz gcc-46b622cc2466685c60ef40256e49ad1fd8844cf7.tar.bz2 | |
re PR tree-optimization/64493 (ICE at -O3 on x86_64-linux-gnu)
2015-01-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/64493
PR tree-optimization/64495
* tree-vect-loop.c (vect_finalize_reduction): For double-reductions
assign the proper vectorized PHI to the inner loop exit PHIs.
* gcc.dg/vect/pr64493.c: New testcase.
* gcc.dg/vect/pr64495.c: Likewise.
From-SVN: r219579
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 670fe9d..fff55df 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -4580,7 +4580,10 @@ vect_finalize_reduction: && !STMT_VINFO_LIVE_P (exit_phi_vinfo)) || double_reduc); - STMT_VINFO_VEC_STMT (exit_phi_vinfo) = epilog_stmt; + if (double_reduc) + STMT_VINFO_VEC_STMT (exit_phi_vinfo) = inner_phi; + else + STMT_VINFO_VEC_STMT (exit_phi_vinfo) = epilog_stmt; if (!double_reduc || STMT_VINFO_DEF_TYPE (exit_phi_vinfo) != vect_double_reduction_def) |