re PR target/21761 (mainline gcc causing internal compiler error.)

2005-05-29  Geoffrey Keating  <geoffk@apple.com>

	PR target/21761
	* config/rs6000/rs6000.md: Remove stray TARGET_32BIT from
	pattern involving `:P'.

Index: testsuite/ChangeLog
2005-05-29  Geoffrey Keating  <geoffk@apple.com>

	PR target/21761
	* gcc.c-torture/compile/pr21761.c: New.

From-SVN: r100352

gcc/ChangeLog

 2005-05-29  Geoffrey Keating  <geoffk@apple.com>
 
+	PR target/21761
+	* config/rs6000/rs6000.md: Remove stray TARGET_32BIT from
+	pattern involving `:P'.
+
 	* Makefile.in (install-cpp): Depend on installdirs.
 
 2005-05-30  Kazu Hirata  <kazu@cs.umass.edu>

gcc/config/rs6000/rs6000.md

@@ -1672,7 +1672,7 @@
 		    (const_int 0)))
    (set (match_operand:P 0 "gpc_reg_operand" "")
 	(neg:P (match_dup 1)))]
-  "TARGET_32BIT && reload_completed"
+  "reload_completed"
   [(set (match_dup 0)
 	(neg:P (match_dup 1)))
    (set (match_dup 2)

gcc/testsuite/ChangeLog

 2005-05-29  Geoffrey Keating  <geoffk@apple.com>
 
+	PR target/21761
+	* gcc.c-torture/compile/pr21761.c: New.
+
 	* g++.old-deja/g++.eh/badalloc1.C: Make XFAIL only on darwin
 	before darwin8.
 

gcc/testsuite/gcc.c-torture/compile/pr21761.c

+void f1()
+{
+  long bit=0, exponent;
+  exponent = -exponent;
+  for (bit = 1; exponent; bit <<= 1)
+      if (exponent & bit)
+              exponent ^= bit;
+}
+