https://sourceware.org/bugzilla/show_bug.cgi?id=18883
Bug ID: 18883
Summary: Confusing error message for test
Product: binutils
Version: 2.25
Status: NEW
Severity: normal
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: spoofedexistence at gmail dot com
Target Milestone: ---
I accidentally swapped the order of the operands for test, one being a memory
operand and the other being a constant:
testq 0x18(%rsp), $3
I would expect the error message about "invalid operand", but in stead it
displays:
Error: operand size mismatch for `test'
This doesn't always seem to happen; some systems produced the same output, some
did not, see http://forum.osdev.org/viewtopic.php?f=11&t=29559&start=15
In my case, this was a cross compiler on my Mac:
$ /usr/local/cross/bin/x86_64-elf-as --version
GNU assembler (GNU Binutils) 2.24
Copyright 2013 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or later.
This program has absolutely no warranty.
This assembler was configured for a target of `x86_64-elf'.
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