tree-optimization/107095 - fix typo in .MASK_STORE DSE handling

Message ID 20220930105003.7C8A813776@imap2.suse-dmz.suse.de
State New, archived
Headers
Series tree-optimization/107095 - fix typo in .MASK_STORE DSE handling |

Commit Message

Richard Biener Sept. 30, 2022, 10:50 a.m. UTC
  We were using the size of the mask argument rather than the data
argument for the ao_ref.

Bootstrap and regtest running on x86_64-unknown-linux-gnu.

	PR tree-optimization/107095
	* tree-ssa-dse.cc (initialize_ao_ref_for_dse): Use data arg
	for .MASK_STORE size.
---
 gcc/tree-ssa-dse.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
  

Patch

diff --git a/gcc/tree-ssa-dse.cc b/gcc/tree-ssa-dse.cc
index 2411ac711de..c14e5e43eb3 100644
--- a/gcc/tree-ssa-dse.cc
+++ b/gcc/tree-ssa-dse.cc
@@ -170,7 +170,7 @@  initialize_ao_ref_for_dse (gimple *stmt, ao_ref *write, bool may_def_ok = false)
 	    {
 	      ao_ref_init_from_ptr_and_size
 		  (write, gimple_call_arg (stmt, 0),
-		   TYPE_SIZE_UNIT (TREE_TYPE (gimple_call_arg (stmt, 2))));
+		   TYPE_SIZE_UNIT (TREE_TYPE (gimple_call_arg (stmt, 3))));
 	      return true;
 	    }
 	  break;