From b31a1c7c0c25de087e272c045eb2370a03856c93 Mon Sep 17 00:00:00 2001
From: mrdudz <mrdudz@users.noreply.github.com>
Date: Sun, 10 Dec 2023 22:16:30 +0100
Subject: [PATCH] test for regression that occured after #2262

---
 test/val/optimizer-bug-pr2262.c | 53 +++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 test/val/optimizer-bug-pr2262.c

diff --git a/test/val/optimizer-bug-pr2262.c b/test/val/optimizer-bug-pr2262.c
new file mode 100644
index 000000000..f2c08a98c
--- /dev/null
+++ b/test/val/optimizer-bug-pr2262.c
@@ -0,0 +1,53 @@
+
+// optimizer bug that occured after PR #2262, fixed by PR #2295
+
+#include <stdio.h>
+
+unsigned char n;
+unsigned long fp1;
+
+int failures = 0;
+
+void test1(void)
+{
+	asm("lda     _n");
+	asm("jeq     %g", L0004);
+
+	asm("lda     #$3F");
+	asm("sta     sreg+1");
+	asm("lda     #$C0");
+	asm("sta     sreg");
+	asm("lda     #$00");
+	asm("ldx     #$00");
+	asm("jmp     %g", L0005);
+
+L0004:
+	asm("lda     #$3F");
+	asm("sta     sreg+1");
+	asm("lda     #$00");
+	asm("sta     sreg");
+	asm("lda     #$00");
+	asm("ldx     #$00");
+
+L0005:
+	asm("sta     _fp1");
+	asm("stx     _fp1+1");
+	asm("ldy     sreg");
+	asm("sty     _fp1+2");
+	asm("ldy     sreg+1");
+	asm("sty     _fp1+3");
+}
+
+int main(void)
+{
+    n = 0;
+    test1();
+    printf("fp1:%08lx\n", fp1);
+    if (fp1 != 0x3f000000) failures++;
+    n = 0xff;
+    test1();
+    printf("fp1:%08lx\n", fp1);
+    if (fp1 != 0x3fc00000) failures++;
+    printf("failures:%d\n", failures);
+    return failures;
+}