From 22909a1397ad9679f0ffaba3016a3420ace2da21 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sat, 28 Jun 2025 09:57:53 -0600 Subject: [PATCH] tcg: Fix constant propagation in tcg_reg_alloc_dup The scalar constant must be replicated for dup. Cc: qemu-stable@nongnu.org Fixes: bab1671f0fa ("tcg: Manually expand INDEX_op_dup_vec") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/3002 Signed-off-by: Richard Henderson (cherry picked from commit 0d0fc3f4658937fb81fcc16a89738e83bd8d4795) Signed-off-by: Michael Tokarev --- tcg/tcg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tcg/tcg.c b/tcg/tcg.c index dfd48b8264..b1a7465df2 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -4927,7 +4927,7 @@ static void tcg_reg_alloc_dup(TCGContext *s, const TCGOp *op) if (its->val_type == TEMP_VAL_CONST) { /* Propagate constant via movi -> dupi. */ - tcg_target_ulong val = its->val; + tcg_target_ulong val = dup_const(vece, its->val); if (IS_DEAD_ARG(1)) { temp_dead(s, its); }