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* [r13-1786 Regression] FAIL: gcc.dg/analyzer/stdarg-3.c (test for excess errors) on Linux/x86_64
@ 2022-07-22 1:35 skpandey
2022-07-22 15:06 ` David Malcolm
0 siblings, 1 reply; 2+ messages in thread
From: skpandey @ 2022-07-22 1:35 UTC (permalink / raw)
To: gcc-patches, gcc-regression, dmalcolm
On Linux/x86_64,
b852aa7f265424c8e2036899da5d8306ff06a16c is the first bad commit
commit b852aa7f265424c8e2036899da5d8306ff06a16c
Author: David Malcolm <dmalcolm@redhat.com>
Date: Thu Jul 21 17:29:26 2022 -0400
analyzer: fix -Wanalyzer-va-list-exhausted false +ve on va_arg in subroutine [PR106383]
caused
FAIL: gcc.dg/analyzer/stdarg-3.c (test for excess errors)
with GCC configured with
../../gcc/configure --prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r13-1786/usr --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld --with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl --enable-libmpx x86_64-linux --disable-bootstrap
To reproduce:
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="analyzer.exp=gcc.dg/analyzer/stdarg-3.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="analyzer.exp=gcc.dg/analyzer/stdarg-3.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="analyzer.exp=gcc.dg/analyzer/stdarg-3.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="analyzer.exp=gcc.dg/analyzer/stdarg-3.c --target_board='unix{-m64\ -march=cascadelake}'"
(Please do not reply to this email, for question about this report, contact me at skpgkp2 at gmail dot com)
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [r13-1786 Regression] FAIL: gcc.dg/analyzer/stdarg-3.c (test for excess errors) on Linux/x86_64
2022-07-22 1:35 [r13-1786 Regression] FAIL: gcc.dg/analyzer/stdarg-3.c (test for excess errors) on Linux/x86_64 skpandey
@ 2022-07-22 15:06 ` David Malcolm
0 siblings, 0 replies; 2+ messages in thread
From: David Malcolm @ 2022-07-22 15:06 UTC (permalink / raw)
To: skpandey, gcc-patches, gcc-regression
On Thu, 2022-07-21 at 18:35 -0700, skpandey@sc.intel.com wrote:
> On Linux/x86_64,
>
> b852aa7f265424c8e2036899da5d8306ff06a16c is the first bad commit
> commit b852aa7f265424c8e2036899da5d8306ff06a16c
> Author: David Malcolm <dmalcolm@redhat.com>
> Date: Thu Jul 21 17:29:26 2022 -0400
>
> analyzer: fix -Wanalyzer-va-list-exhausted false +ve on va_arg in
> subroutine [PR106383]
>
> caused
>
> FAIL: gcc.dg/analyzer/stdarg-3.c (test for excess errors)
Thanks; I somehow managed to miss the FAIL when reviewing the test
results; sorry everyone; it points to a real issue in -fanalyzer for
va_arg in loops.
I've filed this as PR analyzer/106413 ("State explosion on va_arg when
va_start is in top-level function of analysis").
Dave
^ permalink raw reply [flat|nested] 2+ messages in thread
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2022-07-22 1:35 [r13-1786 Regression] FAIL: gcc.dg/analyzer/stdarg-3.c (test for excess errors) on Linux/x86_64 skpandey
2022-07-22 15:06 ` David Malcolm
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