On Mär 31 2021, Jan Hubicka via Gcc-cvs wrote:
> https://gcc.gnu.org/g:e7fd3b783238d034018443e43a58ff87908b4db6
>
> commit r11-7940-ge7fd3b783238d034018443e43a58ff87908b4db6
> Author: Jan Hubicka <j...@suse.cz>
> Date: Wed Mar 31 22:44:20 2021 +0200
>
> Make USES_COMDAT_LOCAL CIF_FINAL_NORMAL
>
> USES_COMDAT_LOCAL is incorrectly defined as CIF_FINAL_ERROR which makes
> inliner
> to mis some inlines of functions in comdat section that was previously
> split.
>
> 2021-03-31 Jan Hubicka <hubi...@ucw.cz>
>
> PR ipa/98265
> * cif-code.def (USES_COMDAT_LOCAL): Make CIF_FINAL_NORMAL.
This breaks bootstrap on riscv64:
In function ‘alloca_type_and_limit alloca_call_type(range_query&, gimple*, bool
’,
inlined from ‘virtual unsigned int pass_walloca::execute(function*)’ at
../../gcc/gimple-ssa-warn-alloca.c:295:25:
../../gcc/gimple-ssa-warn-alloca.c:206:13: error: ‘*(long int*)((char*)&ret +
offsetof(alloca_type_and_limit,
alloca_type_and_limit::limit.generic_wide_int<wide_int_storage>::<unnamed>.wide_int_storage::val[0]))’
may be used uninitialized -Werror=maybe-uninitialized]
206 | ret = alloca_type_and_limit (ALLOCA_OK);
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../gcc/gimple-ssa-warn-alloca.c: In member function ‘virtual unsigned int
pass_walloca::execute(function*)’:
../../gcc/gimple-ssa-warn-alloca.c:200:32: note: ‘ret’ declared here
200 | struct alloca_type_and_limit ret = alloca_type_and_limit (ALLOCA_OK);
| ^~~
In function ‘alloca_type_and_limit alloca_call_type(range_query&, gimple*, bool
’,
inlined from ‘virtual unsigned int pass_walloca::execute(function*)’ at
../../gcc/gimple-ssa-warn-alloca.c:295:25:
../../gcc/gimple-ssa-warn-alloca.c:206:13: error: ‘*(long int*)((char*)&ret +
offsetof(alloca_type_and_limit,
alloca_type_and_limit::limit.generic_wide_int<wide_int_storage>::<unnamed>.wide_int_storage::val[1]))’
may be used uninitialized -Werror=maybe-uninitialized]
206 | ret = alloca_type_and_limit (ALLOCA_OK);
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../gcc/gimple-ssa-warn-alloca.c: In member function ‘virtual unsigned int
pass_walloca::execute(function*)’:
../../gcc/gimple-ssa-warn-alloca.c:200:32: note: ‘ret’ declared here
200 | struct alloca_type_and_limit ret = alloca_type_and_limit (ALLOCA_OK);
| ^~~
In function ‘alloca_type_and_limit alloca_call_type(range_query&, gimple*, bool
’,
inlined from ‘virtual unsigned int pass_walloca::execute(function*)’ at
../../gcc/gimple-ssa-warn-alloca.c:295:25:
../../gcc/gimple-ssa-warn-alloca.c:206:13: error: ‘*(long int*)((char*)&ret +
offsetof(alloca_type_and_limit,
alloca_type_and_limit::limit.generic_wide_int<wide_int_storage>::<unnamed>.wide_int_storage::val[2]))’
may be used uninitialized -Werror=maybe-uninitialized]
206 | ret = alloca_type_and_limit (ALLOCA_OK);
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../gcc/gimple-ssa-warn-alloca.c: In member function ‘virtual unsigned int
pass_walloca::execute(function*)’:
../../gcc/gimple-ssa-warn-alloca.c:200:32: note: ‘ret’ declared here
200 | struct alloca_type_and_limit ret = alloca_type_and_limit (ALLOCA_OK);
| ^~~
In function ‘alloca_type_and_limit alloca_call_type(range_query&, gimple*, bool
’,
inlined from ‘virtual unsigned int pass_walloca::execute(function*)’ at
../../gcc/gimple-ssa-warn-alloca.c:295:25:
../../gcc/gimple-ssa-warn-alloca.c:206:13: error: ‘*(unsigned int*)((char*)&ret
+ offsetof(alloca_type_and_limit,
alloca_type_and_limit::limit.generic_wide_int<wide_int_storage>::<unnamed>.wide_int_storage::len))’
may be used uninitialized [-Werror=maybe-uninitialized]
206 | ret = alloca_type_and_limit (ALLOCA_OK);
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../gcc/gimple-ssa-warn-alloca.c: In member function ‘virtual unsigned int
pass_walloca::execute(function*)’:
../../gcc/gimple-ssa-warn-alloca.c:200:32: note: ‘ret’ declared here
200 | struct alloca_type_and_limit ret = alloca_type_and_limit (ALLOCA_OK);
| ^~~
In function ‘alloca_type_and_limit alloca_call_type(range_query&, gimple*, bool
’,
inlined from ‘virtual unsigned int pass_walloca::execute(function*)’ at
../../gcc/gimple-ssa-warn-alloca.c:295:25:
../../gcc/gimple-ssa-warn-alloca.c:206:13: error: ‘*(unsigned int*)((char*)&ret
+ offsetof(alloca_type_and_limit,
alloca_type_and_limit::limit.generic_wide_int<wide_int_storage>::<unnamed>.wide_int_storage::precision))’
may be used uninitialized [-Werror=maybe-uninitialized]
206 | ret = alloca_type_and_limit (ALLOCA_OK);
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../gcc/gimple-ssa-warn-alloca.c: In member function ‘virtual unsigned int
pass_walloca::execute(function*)’:
../../gcc/gimple-ssa-warn-alloca.c:200:32: note: ‘ret’ declared here
200 | struct alloca_type_and_limit ret = alloca_type_and_limit (ALLOCA_OK);
| ^~~
cc1plus: all warnings being treated as errors
make[3]: *** [Makefile:1142: gimple-ssa-warn-alloca.o] Error 1
Andreas.
--
Andreas Schwab, sch...@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
