Re: [Tinycc-devel] trouble shooting for arm64-gen.c

[Christian Jullien]

Thank you Jiong.

To help maintainers with this bug, here is a minimal test case which reproduces the error (on a Rpi3 with Fedrora 31):

 

jullien@rpi64 $ cat print.c

#include <stdarg.h>

 

struct X { int _x; };

 

void

va_arg_bug(va_list ap) {

        void *x = va_arg(ap, struct X *);

}

jullien@rpi64 $ tcc -c print.c

tcc: arm64-gen.c:257: arm64_type_size: Assertion `0' failed.

Aborted (core dumped)

 

From arm64_type_size, type VT_STRUCT is indeed missing.

 

I’m going to push a patch and add new test case.

 

C.

 

From: Tinycc-devel [mailto:tinycc-devel-bounces+eligis=address@hidden] On Behalf Of ??
Sent: Sunday, March 22, 2020 00:51
To: address@hidden
Subject: [Tinycc-devel] trouble shooting for arm64-gen.c

 

Hi guys,

I'm the fans to tinycc.

Today I compile the FFTW-3.3.8 by tcc. But it trigger the assert(0) in line 257 arm64-gen.c.

Then，I add "case VT_STRUCT: return 3;" int the tail of the switch block curtly.

 

I wonder to know whether it is correct?

 

Best Regards!

 

Jiong