From cb47b01d3eff8da054384bc0c293db8f9f8b2783 Mon Sep 17 00:00:00 2001
From: Gabriel Baraldi <baraldigabriel@gmail.com>
Date: Thu, 14 Mar 2024 10:51:10 -0400
Subject: [PATCH] codegen: change tbaa of ptr_phi to tbaa_value (#53655)

Fixes https://github.com/JuliaLang/julia/issues/53612
---
 src/codegen.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/codegen.cpp b/src/codegen.cpp
index eaa9335659fb1..d4ce52b4dc1d0 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -5634,7 +5634,7 @@ static void emit_phinode_assign(jl_codectx_t &ctx, ssize_t idx, jl_value_t *r)
             Value *ptr = ctx.builder.CreateSelect(isboxed,
                 maybe_bitcast(ctx, decay_derived(ctx, ptr_phi), getInt8PtrTy(ctx.builder.getContext())),
                 maybe_bitcast(ctx, decay_derived(ctx, phi), getInt8PtrTy(ctx.builder.getContext())));
-            jl_cgval_t val = mark_julia_slot(ptr, phiType, Tindex_phi, ctx.tbaa().tbaa_stack); // XXX: this TBAA is wrong for ptr_phi
+            jl_cgval_t val = mark_julia_slot(ptr, phiType, Tindex_phi, best_tbaa(ctx.tbaa(), phiType));
             val.Vboxed = ptr_phi;
             ctx.PhiNodes.push_back(std::make_tuple(val, BB, dest, ptr_phi, r));
             ctx.SAvalues[idx] = val;