Bug#812080: gdc-6: array assignment fails to compile
On 20 January 2016 at 17:43, Iain Buclaw wrote:
> On 20 January 2016 at 17:40, Matthias Klose wrote:
>>
>> On 20.01.2016 16:56, Iain Buclaw wrote:
>>>
>>> On 20 January 2016 at 10:48, Peter De Wachter wrote:
>>>
Package: gdc-6
Version: 6-20160117-1
Severity: normal
Dear Maintainer,
This program fails to compile in this gdc snapshot:
void main() {
real[] a = [-1];
}
It is accepted by both gdc-5 and the dmd reference compiler.
>>> I'm sure I would have noticed if this was happening in upstream gdc.
>>> However I don't want to be quick to point towards some local debian patch
>>> causing the problem. Are there debug builds to test?
>>
>>
>> DEB_BUILD_OPTIONS="nocheck nolang=ada,java,objc,obj-c++ gccdebug
>> parallel=8" dpkg-buildpackage ...
>>
>
> Thanks, just building now...
OK, I've finally been able to reproduce using this compiler to build
itself. Previously I was using an older snapshot of a couple weeks.
It looks like something has gone awry with the "fake" real_value type.
Increasing or Decreasing the stub static array by 1 makes the problem gone.
---
// Including gcc/real.h presents too many problems, so
// just statically allocate enough space for REAL_VALUE_TYPE.
#define REALSZ (16 + sizeof (long))/sizeof (long)
#if 1
int exp[2]; // OK
#else
int exp[3]; // Bad
#endif
long sig[REALSZ];
---
Now, when using int[3] in the original code, there is 4 bytes of
padding added after it. But this shouldn't be a problem... unless
perhaps GCC has started passing the fake type in registers instead of
on the stack, hmm.
In any case, I know at least how to make it not fail. Having it as
one array is probably the right way to go though.
Iain.
Bug#812080: gdc-6: array assignment fails to compile
On 20 January 2016 at 17:40, Matthias Klose wrote:
> On 20.01.2016 16:56, Iain Buclaw wrote:
>
>> On 20 January 2016 at 10:48, Peter De Wachter wrote:
>>
>> Package: gdc-6
>>> Version: 6-20160117-1
>>> Severity: normal
>>>
>>> Dear Maintainer,
>>>
>>> This program fails to compile in this gdc snapshot:
>>>
>>>void main() {
>>> real[] a = [-1];
>>>}
>>>
>>> It is accepted by both gdc-5 and the dmd reference compiler.
>>>
>>>
>>> I'm sure I would have noticed if this was happening in upstream gdc.
>> However I don't want to be quick to point towards some local debian patch
>> causing the problem. Are there debug builds to test?
>>
>
> DEB_BUILD_OPTIONS="nocheck nolang=ada,java,objc,obj-c++ gccdebug
> parallel=8" dpkg-buildpackage ...
>
>
Thanks, just building now...
Bug#812080: gdc-6: array assignment fails to compile
On 20.01.2016 16:56, Iain Buclaw wrote:
On 20 January 2016 at 10:48, Peter De Wachter wrote:
Package: gdc-6
Version: 6-20160117-1
Severity: normal
Dear Maintainer,
This program fails to compile in this gdc snapshot:
void main() {
real[] a = [-1];
}
It is accepted by both gdc-5 and the dmd reference compiler.
I'm sure I would have noticed if this was happening in upstream gdc.
However I don't want to be quick to point towards some local debian patch
causing the problem. Are there debug builds to test?
DEB_BUILD_OPTIONS="nocheck nolang=ada,java,objc,obj-c++ gccdebug parallel=8"
dpkg-buildpackage ...
Bug#812080: gdc-6: array assignment fails to compile
On 20 January 2016 at 10:48, Peter De Wachter wrote:
> Package: gdc-6
> Version: 6-20160117-1
> Severity: normal
>
> Dear Maintainer,
>
> This program fails to compile in this gdc snapshot:
>
> void main() {
> real[] a = [-1];
> }
>
> It is accepted by both gdc-5 and the dmd reference compiler.
>
>
I'm sure I would have noticed if this was happening in upstream gdc.
However I don't want to be quick to point towards some local debian patch
causing the problem. Are there debug builds to test?
Iain.
Bug#812080: gdc-6: array assignment fails to compile
Package: gdc-6
Version: 6-20160117-1
Severity: normal
Dear Maintainer,
This program fails to compile in this gdc snapshot:
void main() {
real[] a = [-1];
}
It is accepted by both gdc-5 and the dmd reference compiler.
-- System Information:
Debian Release: stretch/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.3.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=nl_BE.utf8, LC_CTYPE=nl_BE.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages gdc-6 depends on:
ii g++-66-20160117-1
ii gcc-6-base 6-20160117-1
ii libc62.21-6
ii libgmp10 2:6.1.0+dfsg-2
ii libisl15 0.15-3
ii libmpc3 1.0.3-1
ii libmpfr4 3.1.3-2
ii libphobos-6-dev 6-20160117-1
ii zlib1g 1:1.2.8.dfsg-2+b1
gdc-6 recommends no packages.
gdc-6 suggests no packages.
-- no debconf information
