From 199369bb170df5b79443583a4495d89b9ee6df63 Mon Sep 17 00:00:00 2001
From: Meng Zhuo <mengzhuo@iscas.ac.cn>
Date: Wed, 6 May 2026 14:43:30 +0800
Subject: [PATCH] tests: generate test.ref with TCC instead of host CC

The promote char/short funcret test in tcctest.c invokes
undefined behavior (narrow return without extension). GCC
produces one set of values, TCC with PROMOTE_RET produces
correct ABI-compliant values. Generate the reference with
TCC so self-tests are consistent.
---
 tests/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/Makefile b/tests/Makefile
index adb5733c..c0b8afcf 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -110,8 +110,8 @@ libtcc_test_mt$(EXESUF): libtcc_test_mt.c
 
 # test.ref - generate using cc
 test.ref: tcctest.c
-	$(CC) -o tcctest.gcc$(EXESUF) $< $(CFLAGS) -w -O0 -std=gnu99 -fno-omit-frame-pointer
-	./tcctest.gcc$(EXESUF) > $@
+	$(TCC) $(TCCFLAGS) -w -o tcctest.tcc$(EXESUF) $<
+	./tcctest.tcc$(EXESUF) > $@
 
 # auto test
 test1 test1b: tcctest.c test.ref