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tqchen pushed a commit to branch manylinux-ci-836
in repository https://gitbox.apache.org/repos/asf/tvm-tirx.git

commit b95fc5bc2f151f4c8c8d31e51fe0d452406a175f
Author: Tianqi Chen <[email protected]>
AuthorDate: Sun Oct 25 03:00:43 2026 +0000

    [FIX] Value-initialize negation rewrite pattern variables
---
 src/sym/rewrite_simplify.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sym/rewrite_simplify.cc b/src/sym/rewrite_simplify.cc
index 4b0584ad3..5f2f35f26 100644
--- a/src/sym/rewrite_simplify.cc
+++ b/src/sym/rewrite_simplify.cc
@@ -1981,7 +1981,7 @@ UnchangedOr<PrimExpr> 
RewriteSimplifier::Impl::Mutate_(const prim::NotObj* op,
 
 PrimExpr RewriteSimplifier::Impl::ApplyRewriteRules(prim::Not ret, InplaceMode 
inplace_mode) {
   // Pattern var to match any expression
-  PVar<PrimExpr> x, y;
+  PVar<PrimExpr> x{}, y{};
   PVar<PrimExpr> lanes;
   if (IsVectorExpr(ret.get())) {
     TVM_TRY_REWRITE(!broadcast(x, lanes), broadcast(!x, lanes));

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