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fix vectorizable_condition ICE with EXTRACT_LAST_REDUCTION

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The previous reorg missed a guard around the else clause access.

2020-06-12  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/95633
	* tree-vect-stmts.c (vectorizable_condition): Properly
	guard the vec_else_clause access with EXTRACT_LAST_REDUCTION.
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Richard Biener 2020-06-12 12:06:53 +02:00
parent e784f98027
commit 135a8ad3a5
1 changed files with 2 additions and 1 deletions
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gcc/tree-vect-stmts.c
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@ -9925,7 +9925,8 @@ vectorizable_condition (vec_info *vinfo,
FOR_EACH_VEC_ELT (vec_oprnds0, i, vec_cond_lhs)
{
vec_then_clause = vec_oprnds2[i];
vec_else_clause = vec_oprnds3[i];
if (reduction_type != EXTRACT_LAST_REDUCTION)
vec_else_clause = vec_oprnds3[i];
if (swap_cond_operands)
std::swap (vec_then_clause, vec_else_clause);