* [BUILDROBOT][PATCH] Fix warnings in the mep-elf target
@ 2014-08-28 22:00 Jan-Benedict Glaw
2014-08-28 22:47 ` Andrew Pinski
2014-08-28 22:49 ` DJ Delorie
0 siblings, 2 replies; 5+ messages in thread
From: Jan-Benedict Glaw @ 2014-08-28 22:00 UTC (permalink / raw)
To: gcc-patches, DJ Delorie
[-- Attachment #1: Type: text/plain, Size: 4630 bytes --]
Hi!
The following patch silences two warnings in the mep-elf target,
fixing the config-list.mk build:
First one:
~~~~~~~~~~
g++ -c -DIN_GCC_FRONTEND -DIN_GCC_FRONTEND -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../../gcc/gcc -I../../../gcc/gcc/. -I../../../gcc/gcc/../include -I../../../gcc/gcc/../libcpp/include -I/opt/cfarm/mpc/include -I../../../gcc/gcc/../libdecnumber -I../../../gcc/gcc/../libdecnumber/dpd -I../libdecnumber -I../../../gcc/gcc/../libbacktrace -DCLOOG_INT_GMP -DCLOOG_INT_GMP -I. -I. -I../../../gcc/gcc -I../../../gcc/gcc/. -I../../../gcc/gcc/../include -I../../../gcc/gcc/../libcpp/include -I/opt/cfarm/mpc/include -I../../../gcc/gcc/../libdecnumber -I../../../gcc/gcc/../libdecnumber/dpd -I../libdecnumber -I../../../gcc/gcc/../libbacktrace -DCLOOG_INT_GMP -DCLOOG_INT_GMP ../../../gcc/gcc/config/mep/mep-pragma.c
../../../gcc/gcc/config/mep/mep-pragma.c: In function ‘void mep_pragma_coprocessor(cpp_reader*)’:
../../../gcc/gcc/config/mep/mep-pragma.c:271:18: error: ‘rclass’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
enum reg_class rclass;
^
cc1plus: all warnings being treated as errors
make[2]: *** [mep-pragma.o] Error 1
This is actually a misbehavior of current GCC, the code itself looks 100% okay
to me. Shall I report that as a bug, too?
Second one:
~~~~~~~~~~~
g++ -c -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../../gcc/gcc -I../../../gcc/gcc/. -I../../../gcc/gcc/../include -I../../../gcc/gcc/../libcpp/include -I/opt/cfarm/mpc/include -I../../../gcc/gcc/../libdecnumber -I../../../gcc/gcc/../libdecnumber/dpd -I../libdecnumber -I../../../gcc/gcc/../libbacktrace -o mep.o -MT mep.o -MMD -MP -MF ./.deps/mep.TPo ../../../gcc/gcc/config/mep/mep.c
../../../gcc/gcc/config/mep/mep.c:3448:0: error: "VECTOR_TYPE_P" redefined [-Werror]
#define VECTOR_TYPE_P(t) (TREE_CODE(t) == VECTOR_TYPE)
^
In file included from ../../../gcc/gcc/config/mep/mep.c:26:0:
../../../gcc/gcc/tree.h:474:0: note: this is the location of the previous definition
#define VECTOR_TYPE_P(TYPE) (TREE_CODE (TYPE) == VECTOR_TYPE)
^
cc1plus: all warnings being treated as errors
make[2]: *** [mep.o] Error 1
This patch should fix it. Okay to apply?
2014-08-28 Jan-Benedict Glaw <jbglaw@lug-owl.de>
* config/mep/mep-pragma.c (mep_pragma_coprocessor_subclass): Rework
to silence warning.
* config/mep/mep.c (VECTOR_TYPE_P): Remove duplicate definition.
diff --git a/gcc/config/mep/mep-pragma.c b/gcc/config/mep/mep-pragma.c
index 632e92d..7bda297 100644
--- a/gcc/config/mep/mep-pragma.c
+++ b/gcc/config/mep/mep-pragma.c
@@ -274,24 +274,21 @@ mep_pragma_coprocessor_subclass (void)
if (type != CPP_CHAR)
goto syntax_error;
class_letter = tree_to_uhwi (val);
- if (class_letter >= 'A' && class_letter <= 'D')
- switch (class_letter)
- {
- case 'A':
- rclass = USER0_REGS;
- break;
- case 'B':
- rclass = USER1_REGS;
- break;
- case 'C':
- rclass = USER2_REGS;
- break;
- case 'D':
- rclass = USER3_REGS;
- break;
- }
- else
+ switch (class_letter)
{
+ case 'A':
+ rclass = USER0_REGS;
+ break;
+ case 'B':
+ rclass = USER1_REGS;
+ break;
+ case 'C':
+ rclass = USER2_REGS;
+ break;
+ case 'D':
+ rclass = USER3_REGS;
+ break;
+ default:
error ("#pragma GCC coprocessor subclass letter must be in [ABCD]");
return;
}
diff --git a/gcc/config/mep/mep.c b/gcc/config/mep/mep.c
index 3c71b95..eb0adf8 100644
--- a/gcc/config/mep/mep.c
+++ b/gcc/config/mep/mep.c
@@ -3445,8 +3445,6 @@ mep_expand_builtin_saveregs (void)
return XEXP (regbuf, 0);
}
-#define VECTOR_TYPE_P(t) (TREE_CODE(t) == VECTOR_TYPE)
-
static tree
mep_build_builtin_va_list (void)
{
MfG, JBG
--
Jan-Benedict Glaw jbglaw@lug-owl.de +49-172-7608481
Signature of: http://perl.plover.com/Questions.html
the second :
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [BUILDROBOT][PATCH] Fix warnings in the mep-elf target
2014-08-28 22:00 [BUILDROBOT][PATCH] Fix warnings in the mep-elf target Jan-Benedict Glaw
@ 2014-08-28 22:47 ` Andrew Pinski
2014-08-29 1:34 ` Jan-Benedict Glaw
2014-08-29 1:38 ` Jan-Benedict Glaw
2014-08-28 22:49 ` DJ Delorie
1 sibling, 2 replies; 5+ messages in thread
From: Andrew Pinski @ 2014-08-28 22:47 UTC (permalink / raw)
To: Jan-Benedict Glaw; +Cc: GCC Patches, DJ Delorie
On Thu, Aug 28, 2014 at 3:00 PM, Jan-Benedict Glaw <jbglaw@lug-owl.de> wrote:
> Hi!
>
> The following patch silences two warnings in the mep-elf target,
> fixing the config-list.mk build:
I thought -Werror was only on when the versions of GCC match.
Thanks,
Andrew
>
>
> First one:
> ~~~~~~~~~~
> g++ -c -DIN_GCC_FRONTEND -DIN_GCC_FRONTEND -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../../gcc/gcc -I../../../gcc/gcc/. -I../../../gcc/gcc/../include -I../../../gcc/gcc/../libcpp/include -I/opt/cfarm/mpc/include -I../../../gcc/gcc/../libdecnumber -I../../../gcc/gcc/../libdecnumber/dpd -I../libdecnumber -I../../../gcc/gcc/../libbacktrace -DCLOOG_INT_GMP -DCLOOG_INT_GMP -I. -I. -I../../../gcc/gcc -I../../../gcc/gcc/. -I../../../gcc/gcc/../include -I../../../gcc/gcc/../libcpp/include -I/opt/cfarm/mpc/include -I../../../gcc/gcc/../libdecnumber -I../../../gcc/gcc/../libdecnumber/dpd -I../libdecnumber -I../../../gcc/gcc/../libbacktrace -DCLOOG_INT_GMP -DCLOOG_INT_GMP ../../../gcc/gcc/config/mep/mep-pragma.c
> ../../../gcc/gcc/config/mep/mep-pragma.c: In function ‘void mep_pragma_coprocessor(cpp_reader*)’:
> ../../../gcc/gcc/config/mep/mep-pragma.c:271:18: error: ‘rclass’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
> enum reg_class rclass;
> ^
> cc1plus: all warnings being treated as errors
> make[2]: *** [mep-pragma.o] Error 1
>
>
> This is actually a misbehavior of current GCC, the code itself looks 100% okay
> to me. Shall I report that as a bug, too?
>
>
>
> Second one:
> ~~~~~~~~~~~
> g++ -c -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../../gcc/gcc -I../../../gcc/gcc/. -I../../../gcc/gcc/../include -I../../../gcc/gcc/../libcpp/include -I/opt/cfarm/mpc/include -I../../../gcc/gcc/../libdecnumber -I../../../gcc/gcc/../libdecnumber/dpd -I../libdecnumber -I../../../gcc/gcc/../libbacktrace -o mep.o -MT mep.o -MMD -MP -MF ./.deps/mep.TPo ../../../gcc/gcc/config/mep/mep.c
> ../../../gcc/gcc/config/mep/mep.c:3448:0: error: "VECTOR_TYPE_P" redefined [-Werror]
> #define VECTOR_TYPE_P(t) (TREE_CODE(t) == VECTOR_TYPE)
> ^
> In file included from ../../../gcc/gcc/config/mep/mep.c:26:0:
> ../../../gcc/gcc/tree.h:474:0: note: this is the location of the previous definition
> #define VECTOR_TYPE_P(TYPE) (TREE_CODE (TYPE) == VECTOR_TYPE)
> ^
> cc1plus: all warnings being treated as errors
> make[2]: *** [mep.o] Error 1
>
>
>
>
>
> This patch should fix it. Okay to apply?
>
>
> 2014-08-28 Jan-Benedict Glaw <jbglaw@lug-owl.de>
>
> * config/mep/mep-pragma.c (mep_pragma_coprocessor_subclass): Rework
> to silence warning.
> * config/mep/mep.c (VECTOR_TYPE_P): Remove duplicate definition.
>
>
> diff --git a/gcc/config/mep/mep-pragma.c b/gcc/config/mep/mep-pragma.c
> index 632e92d..7bda297 100644
> --- a/gcc/config/mep/mep-pragma.c
> +++ b/gcc/config/mep/mep-pragma.c
> @@ -274,24 +274,21 @@ mep_pragma_coprocessor_subclass (void)
> if (type != CPP_CHAR)
> goto syntax_error;
> class_letter = tree_to_uhwi (val);
> - if (class_letter >= 'A' && class_letter <= 'D')
> - switch (class_letter)
> - {
> - case 'A':
> - rclass = USER0_REGS;
> - break;
> - case 'B':
> - rclass = USER1_REGS;
> - break;
> - case 'C':
> - rclass = USER2_REGS;
> - break;
> - case 'D':
> - rclass = USER3_REGS;
> - break;
> - }
> - else
> + switch (class_letter)
> {
> + case 'A':
> + rclass = USER0_REGS;
> + break;
> + case 'B':
> + rclass = USER1_REGS;
> + break;
> + case 'C':
> + rclass = USER2_REGS;
> + break;
> + case 'D':
> + rclass = USER3_REGS;
> + break;
> + default:
> error ("#pragma GCC coprocessor subclass letter must be in [ABCD]");
> return;
> }
> diff --git a/gcc/config/mep/mep.c b/gcc/config/mep/mep.c
> index 3c71b95..eb0adf8 100644
> --- a/gcc/config/mep/mep.c
> +++ b/gcc/config/mep/mep.c
> @@ -3445,8 +3445,6 @@ mep_expand_builtin_saveregs (void)
> return XEXP (regbuf, 0);
> }
>
> -#define VECTOR_TYPE_P(t) (TREE_CODE(t) == VECTOR_TYPE)
> -
> static tree
> mep_build_builtin_va_list (void)
> {
>
>
> MfG, JBG
>
> --
> Jan-Benedict Glaw jbglaw@lug-owl.de +49-172-7608481
> Signature of: http://perl.plover.com/Questions.html
> the second :
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [BUILDROBOT][PATCH] Fix warnings in the mep-elf target
2014-08-28 22:00 [BUILDROBOT][PATCH] Fix warnings in the mep-elf target Jan-Benedict Glaw
2014-08-28 22:47 ` Andrew Pinski
@ 2014-08-28 22:49 ` DJ Delorie
1 sibling, 0 replies; 5+ messages in thread
From: DJ Delorie @ 2014-08-28 22:49 UTC (permalink / raw)
To: Jan-Benedict Glaw; +Cc: gcc-patches
> This patch should fix it. Okay to apply?
Ok. Thanks!
> 2014-08-28 Jan-Benedict Glaw <jbglaw@lug-owl.de>
>
> * config/mep/mep-pragma.c (mep_pragma_coprocessor_subclass): Rework
> to silence warning.
> * config/mep/mep.c (VECTOR_TYPE_P): Remove duplicate definition.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [BUILDROBOT][PATCH] Fix warnings in the mep-elf target
2014-08-28 22:47 ` Andrew Pinski
@ 2014-08-29 1:34 ` Jan-Benedict Glaw
2014-08-29 1:38 ` Jan-Benedict Glaw
1 sibling, 0 replies; 5+ messages in thread
From: Jan-Benedict Glaw @ 2014-08-29 1:34 UTC (permalink / raw)
To: Andrew Pinski; +Cc: GCC Patches, DJ Delorie
[-- Attachment #1: Type: text/plain, Size: 730 bytes --]
On Thu, 2014-08-28 15:47:07 -0700, Andrew Pinski <pinskia@gmail.com> wrote:
> On Thu, Aug 28, 2014 at 3:00 PM, Jan-Benedict Glaw <jbglaw@lug-owl.de> wrote:
> > Hi!
> >
> > The following patch silences two warnings in the mep-elf target,
> > fixing the config-list.mk build:
>
>
> I thought -Werror was only on when the versions of GCC match.
Exactly that's the case. The config-list.mk backend ensures that a g++
of the very same revision is used. It's first in $PATH.
MfG, JBG
--
Jan-Benedict Glaw jbglaw@lug-owl.de +49-172-7608481
Signature of: ...und wenn Du denkst, es geht nicht mehr,
the second : kommt irgendwo ein Lichtlein her.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [BUILDROBOT][PATCH] Fix warnings in the mep-elf target
2014-08-28 22:47 ` Andrew Pinski
2014-08-29 1:34 ` Jan-Benedict Glaw
@ 2014-08-29 1:38 ` Jan-Benedict Glaw
1 sibling, 0 replies; 5+ messages in thread
From: Jan-Benedict Glaw @ 2014-08-29 1:38 UTC (permalink / raw)
To: Andrew Pinski; +Cc: GCC Patches, DJ Delorie
[-- Attachment #1: Type: text/plain, Size: 864 bytes --]
On Thu, 2014-08-28 15:47:07 -0700, Andrew Pinski <pinskia@gmail.com> wrote:
> On Thu, Aug 28, 2014 at 3:00 PM, Jan-Benedict Glaw <jbglaw@lug-owl.de> wrote:
> > The following patch silences two warnings in the mep-elf target,
> > fixing the config-list.mk build:
>
>
> I thought -Werror was only on when the versions of GCC match.
See https://plus.google.com/112436047517408844110/posts/UE2dPJra4Qj ,
https://plus.google.com/112436047517408844110/posts/duprj3yMRT9 and
https://plus.google.com/112436047517408844110/posts/j53pZGTHerx .
MfG, JBG
--
Jan-Benedict Glaw jbglaw@lug-owl.de +49-172-7608481
Signature of: The real problem with C++ for kernel modules is:
the second : the language just sucks.
-- Linus Torvalds
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2014-08-28 22:00 [BUILDROBOT][PATCH] Fix warnings in the mep-elf target Jan-Benedict Glaw
2014-08-28 22:47 ` Andrew Pinski
2014-08-29 1:34 ` Jan-Benedict Glaw
2014-08-29 1:38 ` Jan-Benedict Glaw
2014-08-28 22:49 ` DJ Delorie
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