Re: [Tinycc-devel] New error found on RPi3 buster with gcc 8.3 on test 93

[Christian Jullien]

Your patch definitely fixes reported issue.
I pushed it on mob => a7eef33..a9340dd

Thank you grischka.

The warning has also been fixed by inverting test as done on other functions in 
this file.
Also pushed on mob => a9340dd..a4997bf

Have a nice day.

C.

-----Original Message-----
From: Tinycc-devel [mailto:tinycc-devel-bounces+eligis=address@hidden] On 
Behalf Of grischka
Sent: Wednesday, June 26, 2019 00:59
To: address@hidden; address@hidden
Subject: Re: [Tinycc-devel] New error found on RPi3 buster with gcc 8.3 on test 
93

Christian Jullien wrote:
>
>
> Test: 93_integer_promotion...
>
> --- 93_integer_promotion.expect 2019-06-25 23:11:21.865155888 +0200
>
> +++ 93_integer_promotion.output 2019-06-25 23:12:31.445089726 +0200

(Is that "Microsoft Outlook 14.0" with the extra new-lines?)

>
> @@ -6,7 +6,7 @@
>
>
>
>     signed : (1 ? s.ub : 1)
>
>   unsigned : (1 ? s.u : 1)
>
> -   signed : (1 ? s.ullb : 1)
>
> + unsigned : (1 ? s.ullb : 1)
>
>   unsigned : (1 ? s.ull : 1)
>
>     signed : (1 ? s.c : 1)
>
>
>
> make[3]: *** [Makefile:74: 93_integer_promotion.test] Error 1

This change might help:
--- a/tccgen.c
+++ b/tccgen.c
@@ -5914,6 +5914,7 @@ static void expr_cond(void)
                  tt = gjmp(0);
              }
              gsym(u);
+            nocode_wanted = ncw_prev;

              /* this is horrible, but we must also convert first
                 operand */
@@ -5937,7 +5938,6 @@ static void expr_cond(void)
              if (islv)
                  indir();
          }
-        nocode_wanted = ncw_prev;
      }
  }

>
>
>
>
>
> It also produces new warnings:
>
>
>
> ------------ test3 ------------
>
> ../tcc -B.. -I../include -I.. -I..
> -DCONFIG_TRIPLET="\"arm-linux-gnueabihf\"" -DTCC_CPU_VERSION=7
> -DTCC_TARGET_ARM -DTCC_ARM_EABI -DTCC_ARM_HARDFLOAT -DTCC_ARM_VFP -run
> ../tcc.c -B.. -I../include -I.. -I..
> -DCONFIG_TRIPLET="\"arm-linux-gnueabihf\"" -DTCC_CPU_VERSION=7
> -DTCC_TARGET_ARM -DTCC_ARM_EABI -DTCC_ARM_HARDFLOAT -DTCC_ARM_VFP -run
> ../tcc.c -B.. -I../include -I.. -I..
> -DCONFIG_TRIPLET="\"arm-linux-gnueabihf\"" -DTCC_CPU_VERSION=7
> -DTCC_TARGET_ARM -DTCC_ARM_EABI -DTCC_ARM_HARDFLOAT -DTCC_ARM_VFP -run
> ../tcc.c -B.. -I../include -I.. -I.. -run tcctest.c > test.out3
>
> In file included from ../tcc.c:23:
>
> In file included from ../libtcc.c:50:
>
> ../arm-gen.c:410: warning: function might return no value: 'intr'
>
> In file included from ../tcc.c:23:
>
> In file included from ../libtcc.c:50:
>
> ../arm-gen.c:410: warning: function might return no value: 'intr'
>
> In file included from ../tcc.c:23:
>
> In file included from ../libtcc.c:50:
>
> ../arm-gen.c:410: warning: function might return no value: 'intr'
>
> Auto Test3 OK

That is maybe because your headers #define __attribute__ <to empty>
Try
#undef __attribute__
somewhere.

--- grischka


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