Strange "bug" (?) using egcs 1999 06 16

[Arnaud Launay <zoro at multimania dot com>]

Hello,

I'm using the following software:

 * egcs-19991606 (snapshot release)
 * binutils 2.9.1.0.25
 * glibc 2.0.7pre6
 * Linux 2.2.10

When compiling the following program (I know it's incorrect, please don't
bug me with it):

#include <sys/stat.h>

int main(void)
{
        int toto;
        toto=stat(0, toto);
        return 0;
}

I obtain the following results:

cassis:~$ gcc -o toto test.c
test.c: In function `main':
test.c:6: warning: passing arg 2 of `stat' makes pointer from integer without a cast
/tmp/ccukxaaa.o: In function `main':
/tmp/ccukxaaa.o(.text+0x10): undefined reference to `stat'
collect2: ld returned 1 exit status
cassis:~$

It doesn't compile, complaining about stat (2) function missing.
BUT if I compile it using optimisation flag:

cassis:~$ gcc -O -o toto test.c
test.c: In function `main':
test.c:6: warning: passing arg 2 of `stat' makes pointer from integer without a cast
cassis:~$

It compiles !! So what's wrong ? Is egcs having strange behaviour or.. ?

[I include test.s which is the only difference file between the 2
compilation, test.i is exactly the same]

Please CC: me as I'm not on the list(s).

--
Arnaud Launay <launay@ftp.esiea.fr>
	.file	"test.c"
	.version	"01.01"
gcc2_compiled.:
.text
	.align 4
.globl main
	.type	 main,@function
main:
	pushl %ebp
	movl %esp,%ebp
	subl $8,%esp
	addl $-4,%esp
	pushl %eax
	pushl $0
	pushl $3
	call __xstat
	xorl %eax,%eax
	movl %ebp,%esp
	popl %ebp
	ret
.Lfe1:
	.size	 main,.Lfe1-main
	.ident	"GCC: (GNU) gcc-2.95 19990615 (prerelease)"
	.file	"test.c"
	.version	"01.01"
gcc2_compiled.:
.text
	.align 4
.globl main
	.type	 main,@function
main:
	pushl %ebp
	movl %esp,%ebp
	subl $24,%esp
	addl $-8,%esp
	movl -4(%ebp),%eax
	pushl %eax
	pushl $0
	call stat
	addl $16,%esp
	movl %eax,%eax
	movl %eax,-4(%ebp)
	xorl %eax,%eax
	jmp .L10
	.p2align 4,,7
.L10:
	movl %ebp,%esp
	popl %ebp
	ret
.Lfe1:
	.size	 main,.Lfe1-main
	.ident	"GCC: (GNU) gcc-2.95 19990615 (prerelease)"