From: Ralf Baechle <ralf@linux-mips.org>
To: linux-mips@linux-mips.org, binutils@sources.redhat.com
Subject: Branch bug in gas on MIPS
Date: Tue, 17 Aug 2004 18:01:10 +0200 [thread overview]
Message-ID: <20040817160110.GA32594@linux-mips.org> (raw)
Below little test case demonstrates a gas bug that results in swapping
of the two branch instructions and use of bogus destination addresses
for the first of the two branches.
[ralf@lappi tmp]$ cat s.s
1: beqzl $2, 1b
beq $4, $5, 1b
[ralf@lappi tmp]$ mips-linux-as -mips2 -o s.o s.s
[ralf@lappi tmp]$ mips-linux-objdump -d s.o
s.o: file format elf32-tradbigmips
Disassembly of section .text:
00000000 <.text>:
0: 1085ffff beq a0,a1,0x0
4: 00000000 nop
8: 50400000 beqzl v0,0xc
c: 00000000 nop
Have a nice day ;-)
Ralf
next reply other threads:[~2004-08-17 16:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-17 16:01 Ralf Baechle [this message]
2004-08-18 12:30 ` Branch bug in gas on MIPS Ralf Baechle
2004-08-18 15:58 ` Thiemo Seufer
2004-08-18 17:48 ` Daniel Jacobowitz
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