On 5/16/22 12:32, Richard Biener wrote:
> It only seems to happen with your host compiler though? The set of
Yes, happens with just released 12.1 as host compiler:
g++ -fcf-protection -fno-PIE -c -g -O2 -DIN_GCC -fPIC -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 -fno-common
-DHAVE_CONFIG_H -I. -I. -I/home/marxin/Programming/gcc/gcc
-I/home/marxin/Programming/gcc/gcc/.
-I/home/marxin/Programming/gcc/gcc/../include
-I/home/marxin/Programming/gcc/gcc/../libcpp/include
-I/home/marxin/Programming/gcc/gcc/../libcody
-I/home/marxin/Programming/gcc/gcc/../libdecnumber
-I/home/marxin/Programming/gcc/gcc/../libdecnumber/bid -I../libdecnumber
-I/home/marxin/Programming/gcc/gcc/../libbacktrace -o expmed.o -MT expmed.o
-MMD -MP -MF ./.deps/expmed.TPo /home/marxin/Programming/gcc/gcc/expmed.cc
In file included from /home/marxin/Programming/gcc/gcc/coretypes.h:478,
from /home/marxin/Programming/gcc/gcc/expmed.cc:26:
In function ‘poly_uint16 mode_to_bytes(machine_mode)’,
inlined from ‘typename if_nonpoly<typename T::measurement_type>::type
GET_MODE_SIZE(const T&) [with T = scalar_int_mode]’ at
/home/marxin/Programming/gcc/gcc/machmode.h:647:24,
inlined from ‘rtx_def* emit_store_flag_1(rtx, rtx_code, rtx, rtx,
machine_mode, int, int, machine_mode)’ at
/home/marxin/Programming/gcc/gcc/expmed.cc:5728:56:
/home/marxin/Programming/gcc/gcc/machmode.h:550:49: warning: ‘*(unsigned
int*)((char*)&int_mode + offsetof(scalar_int_mode, scalar_int_mode::m_mode))’
may be used uninitialized [-Wmaybe-uninitialized]
550 | ? mode_size_inline (mode) : mode_size[mode]);
| ^~~~
/home/marxin/Programming/gcc/gcc/expmed.cc: In function ‘rtx_def*
emit_store_flag_1(rtx, rtx_code, rtx, rtx, machine_mode, int, int,
machine_mode)’:
/home/marxin/Programming/gcc/gcc/expmed.cc:5657:19: note: ‘*(unsigned
int*)((char*)&int_mode + offsetof(scalar_int_mode, scalar_int_mode::m_mode))’
was declared here
5657 | scalar_int_mode int_mode;
| ^~~~~~~~
Cheers,
Martin
