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Re: [Tinycc-devel] Bug: "mov -0x10(%rbp), %eax", but source is 8-bit sig


From: Michael Matz
Subject: Re: [Tinycc-devel] Bug: "mov -0x10(%rbp), %eax", but source is 8-bit signed type
Date: Sun, 24 Jun 2018 20:17:09 +0200 (CEST)
User-agent: Alpine 2.20 (LSU 67 2015-01-07)

Hi,

On Fri, 22 Jun 2018, Steffen Nurpmeso wrote:

    if(use_shexp){
     27d7:       8b 45 f0                mov    -0x10(%rbp),%eax

That should be movsbl i think.

Yes. The x86-64 port didn't correctly set the VT_LVAL_xxx bits for arguments. Fixed in mob.


Ciao,
Michael.



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