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| author | Richard Biener <rguenther@suse.de> | 2023-11-24 10:04:15 +0100 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2023-11-24 11:25:54 +0100 |
| commit | 9f63a8898154473f7b773c3e2ed71e4959719b71 (patch) | |
| tree | af263ff3c74a71a6961d912f7567a0db127786c4 | |
| parent | e377a340b34de1b06f2825691e45a33affcb4c2d (diff) | |
| download | gcc-9f63a8898154473f7b773c3e2ed71e4959719b71.zip gcc-9f63a8898154473f7b773c3e2ed71e4959719b71.tar.gz gcc-9f63a8898154473f7b773c3e2ed71e4959719b71.tar.bz2 | |
tree-optimization/112677 - stack corruption with .COND_* reduction
The following makes sure to allocate enough space for vectype_op
in vectorizable_reduction.
PR tree-optimization/112677
* tree-vect-loop.cc (vectorizable_reduction): Use alloca
to allocate vectype_op.
| -rw-r--r-- | gcc/tree-vect-loop.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc index caaed97..3df020d 100644 --- a/gcc/tree-vect-loop.cc +++ b/gcc/tree-vect-loop.cc @@ -7385,7 +7385,6 @@ vectorizable_reduction (loop_vec_info loop_vinfo, stmt_vector_for_cost *cost_vec) { tree vectype_in = NULL_TREE; - tree vectype_op[3] = { NULL_TREE, NULL_TREE, NULL_TREE }; class loop *loop = LOOP_VINFO_LOOP (loop_vinfo); enum vect_def_type cond_reduc_dt = vect_unknown_def_type; stmt_vec_info cond_stmt_vinfo = NULL; @@ -7617,6 +7616,7 @@ vectorizable_reduction (loop_vec_info loop_vinfo, assumption is not true: we use reduc_index to record the index of the reduction variable. */ slp_tree *slp_op = XALLOCAVEC (slp_tree, op.num_ops); + tree *vectype_op = XALLOCAVEC (tree, op.num_ops); /* We need to skip an extra operand for COND_EXPRs with embedded comparison. */ unsigned opno_adjust = 0; |