[PATCH] tree-optimization/101159 - fix missing NULL check in popcount pattern

Richard Biener rguenther@suse.de
Tue Jun 22 09:00:51 GMT 2021


This fixes a missing check for a NULL vectype in the new popcount
pattern.

Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.

2021-06-22  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/101159
	* tree-vect-patterns.c (vect_recog_popcount_pattern): Add
	missing NULL vectype check.
---
 gcc/tree-vect-patterns.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/tree-vect-patterns.c b/gcc/tree-vect-patterns.c
index 59727056dc7..d0a5c71dbe4 100644
--- a/gcc/tree-vect-patterns.c
+++ b/gcc/tree-vect-patterns.c
@@ -1385,9 +1385,9 @@ vect_recog_popcount_pattern (vec_info *vinfo,
   vect_pattern_detected ("vec_regcog_popcount_pattern", popcount_stmt);
   vec_type = get_vectype_for_scalar_type (vinfo, lhs_type);
   /* Do it only the backend existed popcount<vector_mode>2.  */
-  if (!direct_internal_fn_supported_p (IFN_POPCOUNT,
-				       vec_type,
-				       OPTIMIZE_FOR_SPEED))
+  if (!vec_type
+      || !direct_internal_fn_supported_p (IFN_POPCOUNT, vec_type,
+					  OPTIMIZE_FOR_SPEED))
     return NULL;
 
   /* Create B = .POPCOUNT (A).  */
-- 
2.26.2


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