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fix target/21761, rs6000 mode macro conversion bug
- From: gkeating at apple dot com (Geoffrey Keating)
- To: gcc-patches at gcc dot gnu dot org
- Date: Sun, 29 May 2005 23:08:39 -0700 (PDT)
- Subject: fix target/21761, rs6000 mode macro conversion bug
When this pattern was converted to use mode macros, I missed the
'TARGET_32BIT'.
Bootstrapped & tested on powerpc-darwin8, plus I checked that the
testcase does actually compile (to .s) with -m64 -O3.
--
- Geoffrey Keating <geoffk@apple.com>
===File ~/patches/rs6000-pr21761.patch======================
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.
Index: config/rs6000/rs6000.md
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/rs6000/rs6000.md,v
retrieving revision 1.369
diff -u -p -u -p -r1.369 rs6000.md
--- config/rs6000/rs6000.md 18 May 2005 23:54:32 -0000 1.369
+++ config/rs6000/rs6000.md 30 May 2005 06:05:08 -0000
@@ -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)
Index: testsuite/gcc.c-torture/compile/pr21761.c
===================================================================
RCS file: testsuite/gcc.c-torture/compile/pr21761.c
diff -N testsuite/gcc.c-torture/compile/pr21761.c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ testsuite/gcc.c-torture/compile/pr21761.c 30 May 2005 06:05:09 -0000
@@ -0,0 +1,9 @@
+void f1()
+{
+ long bit=0, exponent;
+ exponent = -exponent;
+ for (bit = 1; exponent; bit <<= 1)
+ if (exponent & bit)
+ exponent ^= bit;
+}
+
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