* [PATCH][testsuite] Fix oversized bitfield warning.
@ 2015-01-14 10:58 Matthew Wahab
2015-01-14 21:59 ` Jeff Law
0 siblings, 1 reply; 2+ messages in thread
From: Matthew Wahab @ 2015-01-14 10:58 UTC (permalink / raw)
To: gcc-patches
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Hello,
Test case g++.dg/torture/20141013.C (added
https://gcc.gnu.org/ml/gcc-patches/2014-10/msg01190.html) triggers the
warning
--
20141013.C:45:23: warning: width of 'tree_base::code' exceeds its type
--
on arm-none-eabi.
The code specifies a bitfield of size 16 with an enum as the underlying
type. On arm-none-eabi, enums are packed by default (-fshort-enums) so
the bitfield is oversized and the warning is correct.
This patch adds -fno-short-enums to the compiler options for the test case.
Testing: Ran g++.dg/torture/dg-torture.exp for arm-none-eabi and
arm-none-linux-gnueabihf.
Matthew
2015-01-13 Matthew Wahab <matthew.wahab@arm.com>
* testsuite/g++.dg/torture/20141013.C: Set -fno-short-enums.
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diff --git a/gcc/testsuite/g++.dg/torture/20141013.C b/gcc/testsuite/g++.dg/torture/20141013.C
index 529ef0965e4472e5038a9e6d09f13ca4f4a05954..82aacd6317eb3cd66b2839347a708ae0f4787efc 100644
--- a/gcc/testsuite/g++.dg/torture/20141013.C
+++ b/gcc/testsuite/g++.dg/torture/20141013.C
@@ -1,3 +1,4 @@
+/* { dg-options "-fno-short-enums" } */
enum
{
_sch_isdigit = 0x0004,
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH][testsuite] Fix oversized bitfield warning.
2015-01-14 10:58 [PATCH][testsuite] Fix oversized bitfield warning Matthew Wahab
@ 2015-01-14 21:59 ` Jeff Law
0 siblings, 0 replies; 2+ messages in thread
From: Jeff Law @ 2015-01-14 21:59 UTC (permalink / raw)
To: Matthew Wahab, gcc-patches
On 01/14/15 03:54, Matthew Wahab wrote:
> Hello,
>
> Test case g++.dg/torture/20141013.C (added
> https://gcc.gnu.org/ml/gcc-patches/2014-10/msg01190.html) triggers the
> warning
> --
> 20141013.C:45:23: warning: width of 'tree_base::code' exceeds its type
> --
> on arm-none-eabi.
>
> The code specifies a bitfield of size 16 with an enum as the underlying
> type. On arm-none-eabi, enums are packed by default (-fshort-enums) so
> the bitfield is oversized and the warning is correct.
>
> This patch adds -fno-short-enums to the compiler options for the test case.
>
> Testing: Ran g++.dg/torture/dg-torture.exp for arm-none-eabi and
> arm-none-linux-gnueabihf.
>
> Matthew
>
> 2015-01-13 Matthew Wahab <matthew.wahab@arm.com>
>
> * testsuite/g++.dg/torture/20141013.C: Set -fno-short-enums.
OK for the trunk. Please install.
Thanks,
Jeff
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