From: Martin Liska <mliska@suse.cz>
Date: Thu, 13 Aug 2020 11:05:12 +0000 (+0200)
Subject: Add missing vn_reference_t::punned initialization
X-Git-Tag: releases/gcc-10.3.0~968
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c863dec102e0a636b99100639f523d084aafce4e;p=thirdparty%2Fgcc.git

Add missing vn_reference_t::punned initialization

gcc/ChangeLog:

	PR tree-optimization/96597
	* tree-ssa-sccvn.c (vn_reference_lookup_call): Add missing
	initialization of ::punned.
	(vn_reference_insert): Use consistently false instead of 0.
	(vn_reference_insert_pieces): Likewise.

(cherry picked from commit adc646b10c7168c3c95373ee9321e3760fc4c5f1)
---

diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c
index 78c3a0189a3d..97fe9a687393 100644
--- a/gcc/tree-ssa-sccvn.c
+++ b/gcc/tree-ssa-sccvn.c
@@ -3567,6 +3567,7 @@ vn_reference_lookup_call (gcall *call, vn_reference_t *vnresult,
   vr->vuse = vuse ? SSA_VAL (vuse) : NULL_TREE;
   vr->operands = valueize_shared_reference_ops_from_call (call);
   vr->type = gimple_expr_type (call);
+  vr->punned = false;
   vr->set = 0;
   vr->base_set = 0;
   vr->hashcode = vn_reference_compute_hash (vr);
@@ -3590,7 +3591,7 @@ vn_reference_insert (tree op, tree result, tree vuse, tree vdef)
   vr1->vuse = vuse_ssa_val (vuse);
   vr1->operands = valueize_shared_reference_ops_from_ref (op, &tem).copy ();
   vr1->type = TREE_TYPE (op);
-  vr1->punned = 0;
+  vr1->punned = false;
   ao_ref op_ref;
   ao_ref_init (&op_ref, op);
   vr1->set = ao_ref_alias_set (&op_ref);
@@ -3650,7 +3651,7 @@ vn_reference_insert_pieces (tree vuse, alias_set_type set,
   vr1->vuse = vuse_ssa_val (vuse);
   vr1->operands = valueize_refs (operands);
   vr1->type = type;
-  vr1->punned = 0;
+  vr1->punned = false;
   vr1->set = set;
   vr1->base_set = base_set;
   vr1->hashcode = vn_reference_compute_hash (vr1);