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From: "ramana at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/43698] Invalid code when building gentoo pax-utils-0.1.19 with -Os optimizations
Date: Fri, 09 Apr 2010 07:49:00 -0000 [thread overview]
Message-ID: <20100409074857.26540.qmail@sourceware.org> (raw)
In-Reply-To: <bug-43698-14457@http.gcc.gnu.org/bugzilla/>
------- Comment #5 from ramana at gcc dot gnu dot org 2010-04-09 07:48 -------
Actually strike out the last patch - that's just wrong for Thumb1. This is what
I am testing currently.
Index: arm.md
===================================================================
--- arm.md (revision 158138)
+++ arm.md (working copy)
@@ -11200,12 +11200,18 @@
(define_insn "arm_rev"
[(set (match_operand:SI 0 "s_register_operand" "=r")
(bswap:SI (match_operand:SI 1 "s_register_operand" "r")))]
- "TARGET_EITHER && arm_arch6"
+ "TARGET_32BIT && arm_arch6"
+ "rev%?\t%0, %1"
+ [(set_attr "predicable" "yes")
+ (set_attr "length" "4")]
+)
+
+(define_insn "thumb1_rev"
+ [(set (match_operand:SI 0 "s_register_operand" "=l")
+ (bswap:SI (match_operand:SI 1 "s_register_operand" "l")))]
+ "TARGET_THUMB1 && arm_arch6"
"rev\t%0, %1"
- [(set (attr "length")
- (if_then_else (eq_attr "is_thumb" "yes")
- (const_int 2)
- (const_int 4)))]
+ [(set_attr "length" "2")]
)
(define_expand "arm_legacy_rev"
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43698
next prev parent reply other threads:[~2010-04-09 7:49 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-09 0:05 [Bug c/43698] New: " siarhei dot siamashka at gmail dot com
2010-04-09 5:49 ` [Bug target/43698] " mikpe at it dot uu dot se
2010-04-09 6:57 ` mikpe at it dot uu dot se
2010-04-09 7:02 ` ramana at gcc dot gnu dot org
2010-04-09 7:38 ` ramana at gcc dot gnu dot org
2010-04-09 7:49 ` ramana at gcc dot gnu dot org [this message]
2010-04-09 8:05 ` siarhei dot siamashka at gmail dot com
2010-04-09 8:42 ` [Bug target/43698] [4.5/4.6 Regression] " rguenth at gcc dot gnu dot org
2010-04-12 8:38 ` ramana at gcc dot gnu dot org
2010-04-12 9:34 ` siarhei dot siamashka at gmail dot com
2010-04-12 9:51 ` Ramana Radhakrishnan
2010-04-12 9:51 ` ramana dot radhakrishnan at arm dot com
2010-05-17 18:48 ` siarhei dot siamashka at gmail dot com
2010-05-19 12:25 ` rguenth at gcc dot gnu dot org
2010-07-03 16:06 ` armin76 at gentoo dot org
2010-07-19 13:54 ` [Bug target/43698] [4.5/4.6 Regression] Wrong use of ARMv6 REV instruction for endian bytewapping with -Os or -O2 optimizations siarhei dot siamashka at gmail dot com
2010-07-22 8:31 ` ramana at gcc dot gnu dot org
2010-07-22 20:54 ` siarhei dot siamashka at gmail dot com
2010-07-23 12:22 ` ramana at gcc dot gnu dot org
2010-07-23 12:28 ` rguenther at suse dot de
2010-07-30 22:36 ` ramana at gcc dot gnu dot org
2010-07-30 22:39 ` ramana at gcc dot gnu dot org
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