https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118819
Bug ID: 118819
Summary: runtime error: signed integer overflow during
bootstrap
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
>From this morning's bootstrap with ASAN & UBSAN I get
/home/dcb40b/gcc/working/./gcc/xgcc -B/home/dcb40b/gcc/working/./gcc/
-B/home/dcb40b/gcc/results.20250210/x86_64-pc-linux-gnu/bin/
-B/home/dcb40b/gcc/results.20250210/x86_64-pc-linux-gnu/lib/ -isystem
/home/dcb40b/gcc/results.20250210/x86_64-pc-linux-gnu/include -isystem
/home/dcb40b/gcc/results.20250210/x86_64-pc-linux-gnu/sys-include -fno-checking
-DHAVE_CONFIG_H -I. -I../../../trunk/libgomp
-I../../../trunk/libgomp/config/linux/x86 -I../../../trunk/libgomp/config/linux
-I../../../trunk/libgomp/config/posix -I../../../trunk/libgomp
-I../../../trunk/libgomp/../include -Wall -ftls-model=initial-exec -pthread
-DUSING_INITIAL_EXEC_TLS -fcf-protection -mshstk -g -O2 -march=native -MT
ptrlock.lo -MD -MP -MF .deps/ptrlock.Tpo -c
../../../trunk/libgomp/config/linux/ptrlock.c -fPIC -DPIC -o .libs/ptrlock.o
../../trunk/gcc/poly-int.h:776:5: runtime error: signed integer overflow:
-9223372036854775807 + -8 cannot be represented in type 'long int'
and
working $ grep -E "error:|^Config" mk.out
...
Configuring stage 2 in x86_64-pc-linux-gnu/libstdc++-v3
../../trunk/gcc/poly-int.h:776:5: runtime error: signed integer overflow:
-92233
72036854775807 + -8 cannot be represented in type 'long int'
Configure is
../trunk/configure --prefix=$HOME/gcc/results.$DATE \
--disable-multilib \
--disable-werror \
--with-pkgversion=$HASH \
--with-build-config="bootstrap-asan bootstrap-ubsan" \
--enable-checking=yes \
--enable-languages=c,c++
sed 's;-O2;-O2 -march=znver3;' < Makefile > Makefile.tmp
diff Makefile Makefile.tmp
mv Makefile.tmp Makefile
The last time I tried this bootstrap, dated 20250202, it
seemed to work.
