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[Bug gas/12854] New: ARM: Nonsensical argument shift specifications acce
From: |
dave.martin at linaro dot org |
Subject: |
[Bug gas/12854] New: ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics |
Date: |
Tue, 7 Jun 2011 14:06:57 +0000 |
http://sourceware.org/bugzilla/show_bug.cgi?id=12854
Summary: ARM: Nonsensical argument shift specifications
accepted for LSL/LSR/ASR/ROR mnemonics
Product: binutils
Version: 2.22 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: gas
AssignedTo: address@hidden
ReportedBy: address@hidden
gas accepts a trailing ", <shift-op> <register-or-immediate>" for
LSL/LSR/ASR/ROR instructions, but this is invalid syntax.
The shift specification appears to be ignored, with no effect on the assembly;
rather, this trailing junk should be rejected with an error:
Observed on trunk, 20110606:
binutils$ gas/as-new -o tst.o <<EOF && arm-linux-gnueabi-objdump -d tst.o
asr r0, r1, r2, ror #5
ror r0, r1, r2, lsl r3
EOF
tst.o: file format elf32-littlearm
Disassembly of section .text:
00000000 <.text>:
0: e1a00251 asr r0, r1, r2
4: e1a00271 ror r0, r1, r2
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- [Bug gas/12854] New: ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics,
dave.martin at linaro dot org <=
- [Bug gas/12854] ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics, dave.martin at linaro dot org, 2011/06/07
- [Bug gas/12854] ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics, nickc at redhat dot com, 2011/06/09
- [Bug gas/12854] ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics, nickc at redhat dot com, 2011/06/09
- [Bug gas/12854] ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics, dave.martin at linaro dot org, 2011/06/10
- [Bug gas/12854] ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics, nickc at redhat dot com, 2011/06/10
- [Bug gas/12854] ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics, nickc at redhat dot com, 2011/06/10
- [Bug gas/12854] ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics, dave.martin at linaro dot org, 2011/06/10
- [Bug gas/12854] ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics, cvs-commit at gcc dot gnu.org, 2011/06/13
- [Bug gas/12854] ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics, nickc at redhat dot com, 2011/06/13
- [Bug gas/12854] ARM: Nonsensical argument shift specifications accepted for LSL/LSR/ASR/ROR mnemonics, dave.martin at linaro dot org, 2011/06/13