gcc-3.0 20010314: Miscompiled C source with -O3 -fomit-frame-pointer

[pavenis@lanet.lv]

I got following C source (see preprocessed source in attachment and
assembler output in attachment) miscompiled with gcc-3.0 20010314 
(targets i586-pc-msdosdjgpp and i686-pc-linux-gnu):

Compiler command line:
	gcc -O3 -fomit-frame-pointer -S text7.i

Bad asembler output: 
	In procedure _outtextxy contents of register %ebp used but is 
	undefined. As result I'm getting SIGSEGV when running
	applications that uses this procedure.

This output is for target i586-pc-msdosdjgpp but I got practically the 
same problem also for i686-pc-linux-gnu

Andris

	.p2align 4
.globl _outtextxy
_outtextxy:
	pushl	%ebp
	pushl	%edi
	pushl	%esi
	pushl	%ebx
	subl	$56, %esp
	movl	16(%ebp), %ecx
	pushl	%ecx
	call	_strlen
	movl	%eax, %edi
	movl	___gr_vpt, %ebx

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