From 642522bda278337ae75e76a5d7968fc4d529fefc Mon Sep 17 00:00:00 2001
From: Matthias Braun <matze@braunis.de>
Date: Fri, 3 Aug 2007 10:56:46 +0000
Subject: [PATCH] condeval/bitfield problems

[r15449]
---
 ir/be/test/fehler56.c | 63 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 ir/be/test/fehler56.c

diff --git a/ir/be/test/fehler56.c b/ir/be/test/fehler56.c
new file mode 100644
index 000000000..ae02d94f9
--- /dev/null
+++ b/ir/be/test/fehler56.c
@@ -0,0 +1,63 @@
+typedef union rtunion_def
+{
+	int rtwint;
+	int rtint;
+	char *str;
+	struct rtx_def *rtx;
+} rtunion;
+
+typedef struct rtx_def
+{
+	unsigned short code;
+	int mode : 8;
+	unsigned int jump : 1;
+	unsigned int call : 1;
+	unsigned int unchanging : 1;
+	unsigned int volatil : 1;
+	unsigned int in_struct : 1;
+	unsigned int used : 1;
+	unsigned int integrated : 1;
+	rtunion fld[1];
+} *rtx;
+
+enum machine_mode {
+	DImode = 6,
+	HImode = 2,
+	QImode = 1,
+	VOIDmode = 0
+};
+
+#define GET_MODE(RTX)       ((RTX)->mode)
+#define PUT_MODE(RTX, MODE) ((RTX)->mode = (MODE))
+
+struct rtx_def bla;
+int b1, b2, b3, b4;
+
+void t(int num_eliminable, int n_reloads) {
+	register rtx insn = &bla;
+	int did_elimination = 0;
+
+	if(num_eliminable)
+		did_elimination = rand();
+
+#if 0
+	b1 = did_elimination;
+	b2 = n_reloads;
+	b3 = GET_MODE(insn);
+#endif
+
+	PUT_MODE(insn, (did_elimination ? QImode
+				: n_reloads ? HImode
+				: GET_MODE (insn) == DImode ? DImode
+				: VOIDmode));
+}
+
+int main()
+{
+	bla.fld[0].rtint = 8;
+	bla.mode = DImode;
+	printf("Before: %d %d\n", bla.mode, bla.fld[0].rtint);
+	t(0, 1);
+	printf("After: %d %d\n", bla.mode, bla.fld[0].rtint);
+	return 0;
+}
-- 
2.20.1