From 0c391506fc08301dc1d9b09563501071e3915a8f Mon Sep 17 00:00:00 2001
From: Richard Sandiford <richard@codesourcery.com>
Date: Sat, 7 Oct 2006 09:22:20 +0000
Subject: [PATCH] debug-1.c: Use -fno-if-conversion MIPS targets.

gcc/testsuite/
	* gcc.dg/debug/debug-1.c: Use -fno-if-conversion MIPS targets.
	* gcc.dg/debug/debug-2.c: Likewise.

From-SVN: r117530
---
 gcc/testsuite/ChangeLog              |  5 +++++
 gcc/testsuite/gcc.dg/debug/debug-1.c | 18 ++++++++++++++++++
 gcc/testsuite/gcc.dg/debug/debug-2.c |  2 ++
 3 files changed, 25 insertions(+)

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 608682795cd..83be965f88d 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2006-10-07  Richard Sandiford  <richard@codesourcery.com>
+
+	* gcc.dg/debug/debug-1.c: Use -fno-if-conversion MIPS targets.
+	* gcc.dg/debug/debug-2.c: Likewise.
+
 2006-10-06  Uros Bizjak  <uros@kss-loka.si>
 
 	* gcc.c-torture/compile/sync-2.c: New test.
diff --git a/gcc/testsuite/gcc.dg/debug/debug-1.c b/gcc/testsuite/gcc.dg/debug/debug-1.c
index 8cc520dcd79..35b5c91b1f3 100644
--- a/gcc/testsuite/gcc.dg/debug/debug-1.c
+++ b/gcc/testsuite/gcc.dg/debug/debug-1.c
@@ -1,6 +1,24 @@
 /* Verify that the scheduler does not discard the lexical block.  */
 /* { dg-do compile } */
 /* { dg-options "-dA" } */
+/* On MIPS targets that support conditional moves, the optimal
+   implementation of this function is:
+
+	l[wd] tmp,p
+	li $2,2
+	jr $31
+	movz $2,$0,tmp
+
+   After if-conversion, we have a conditional move into a pseudo P
+   followed a copy of P into the return register ($2).  P is associated
+   with xyzzy, so if-conversion is behaving as expected, and has not lost
+   the variable association.  The destination of the second instruction
+   is associated with the function return value.  Combine then combines
+   these two instructions, removing the last use of P and xyzzy.
+
+   Everything is behaving as expected in this scenario, so we avoid
+   using conditional moves for this test.  */
+/* { dg-options "-dA -fno-if-conversion" { target mips*-*-* } } */
 /* { dg-final { scan-assembler "xyzzy" } } */
 
 long p;
diff --git a/gcc/testsuite/gcc.dg/debug/debug-2.c b/gcc/testsuite/gcc.dg/debug/debug-2.c
index b164ff97734..1e86f2fc706 100644
--- a/gcc/testsuite/gcc.dg/debug/debug-2.c
+++ b/gcc/testsuite/gcc.dg/debug/debug-2.c
@@ -1,6 +1,8 @@
 /* Verify that the scheduler does not discard the lexical block.  */
 /* { dg-do compile } */
 /* { dg-options "-dA" } */
+/* See the comment in debug-1.c.  */
+/* { dg-options "-dA -fno-if-conversion" { target mips*-*-* } } */
 /* { dg-final { scan-assembler "xyzzy" } } */
 
 long p;
-- 
2.30.2