Hi,
GCC 3.3.x with targets i386-{aout|coff} and possibly others generate wrong
comments
when called with -fverbose-asm. Here is how to reproduce:
---<test.c>-----------------------------------------------------------------
------
int noop( int i )
{
return i;
}
---<test.s>-----------------------------------------------------------------
------
.file "test.c"
/ GNU C version 3.3 (i386-aout)
/ compiled by GNU C version 3.1.1.
/ GGC heuristics: --param ggc-min-expand=55 --param ggc-min-heapsize=48115
/ options passed: -D__GNUC__=3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=0
/ -auxbase -fverbose-asm
/ options enabled: -fpeephole -ffunction-cse -fkeep-static-consts
/ -fpcc-struct-return -fgcse-lm -fgcse-sm -fsched-interblock -fsched-spec
/ -fbranch-count-reg -fcommon -fverbose-asm -fargument-alias
/ -fzero-initialized-in-bss -fident -fmath-errno -ftrapping-math -m80387
/ -mhard-float -mno-soft-float -mieee-fp -mfp-ret-in-387 -mcpu=i386
/ -march=i386
.text
.globl _noop
_noop:
pushl %ebp
movl %esp, %ebp
movl 8(%ebp), %eax / i
leave
ret
----------------------------------------------------------------------------
------
That comment in the third line of the function should be introduced
by a '#', as opposed to by a '/'.
Here is a short way how to reproduce the problem, given gcc compiled with
--target=i386-aout and a corresponding as from binutils 2.14:
$ i386-aout-gcc -fverbose-asm -c test.c -v
Reading specs from /backup/txs32/lib/gcc-lib/i386-aout/3.3/specs
Konfiguriert mit: ../gcc-3.3/configure --prefix=/backup/txs32
--target=i386-aout
Thread model: single
gcc-Version 3.3
/backup/txs32/lib/gcc-lib/i386-aout/3.3/cc1 -quiet -v -D__GNUC__=3
-D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=0 test.c -quiet -dumpbase test.c
-auxbase test -version -fverbose-asm -o /tmp/ccIfergm.s
GNU C version 3.3 (i386-aout)
compiled by GNU C version 3.1.1.
GGC heuristics: --param ggc-min-expand=55 --param ggc-min-heapsize=48115
nicht vorhandenes Verzeichnis >/backup/txs32/i386-aout/sys-include< wird
ignoriert
nicht vorhandenes Verzeichnis >/backup/txs32/i386-aout/include< wird
ignoriert
#include "..." search starts here:
#include <...> search starts here:
/backup/txs32/include
/backup/txs32/lib/gcc-lib/i386-aout/3.3/include
End of search list.
/backup/txs32/lib/gcc-lib/i386-aout/3.3/../../../../i386-aout/bin/as
--traditional-format -o test.o /tmp/ccIfergm.s
/tmp/ccIfergm.s: Assembler messages:
/tmp/ccIfergm.s:19: Error: junk `/i' after register
Looks like a bug, doesn't it?
Regards
-richy.
--
Richard B. Kreckel
Framatome ANP GmbH, NGLTS
<Richard.Kreckel@xxxxxxxxxxxxxxxxx>
Tel: (+49)9131/189-5275, Fax: (+49)9131/189-9908
