From 0decaff6a5b24ce436e934649a04e893855cc949 Mon Sep 17 00:00:00 2001
From: Richard Sandiford <rsandifo@nildram.co.uk>
Date: Sun, 20 Jan 2008 00:05:07 +0000
Subject: [PATCH] re PR target/34831 (ICE on gcc.dg/pr34233.c for MIPS)

gcc/
	PR target/34831
	* config/mips/mips.md (div<mode>3): Use <recip_condition> when
	deciding whether to use reciprocal instructions.

gcc/testsuite/
	PR target/34831
	* gcc.target/mips/pr34831.c: New test.

From-SVN: r131662
---
 gcc/ChangeLog                           | 6 ++++++
 gcc/config/mips/mips.md                 | 2 +-
 gcc/testsuite/ChangeLog                 | 5 +++++
 gcc/testsuite/gcc.target/mips/pr34831.c | 7 +++++++
 4 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100644 gcc/testsuite/gcc.target/mips/pr34831.c

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ec25be5b0a6..6340525846b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>
+
+	PR target/34831
+	* config/mips/mips.md (div<mode>3): Use <recip_condition> when
+	deciding whether to use reciprocal instructions.
+
 2008-01-19  Uros Bizjak  <ubizjak@gmail.com>
 
 	* dwarf2out.c (dwarf2out_switch_text_section): Do not call
diff --git a/gcc/config/mips/mips.md b/gcc/config/mips/mips.md
index 864013a01bf..21398c65557 100644
--- a/gcc/config/mips/mips.md
+++ b/gcc/config/mips/mips.md
@@ -1936,7 +1936,7 @@
   "<divide_condition>"
 {
   if (const_1_operand (operands[1], <MODE>mode))
-    if (!(ISA_HAS_FP4 && flag_unsafe_math_optimizations))
+    if (!(<recip_condition> && flag_unsafe_math_optimizations))
       operands[1] = force_reg (<MODE>mode, operands[1]);
 })
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 5ea52a26f40..6909a8c4119 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2008-01-20  Richard Sandiford  <rsandifo@nildram.co.uk>
+
+	PR target/34831
+	* gcc.target/mips/pr34831.c: New test.
+
 2008-01-19  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	PR fortran/34817
diff --git a/gcc/testsuite/gcc.target/mips/pr34831.c b/gcc/testsuite/gcc.target/mips/pr34831.c
new file mode 100644
index 00000000000..3cdcd4a72ca
--- /dev/null
+++ b/gcc/testsuite/gcc.target/mips/pr34831.c
@@ -0,0 +1,7 @@
+/* { dg-mips-options "-ffast-math -mips64 -mgp32" } */
+
+double
+foo (void)
+{
+  return __builtin_pow (0.0, -1.5);
+}