https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109593
Bug ID: 109593
Summary: valgrind error doing build of latest gcc trunk
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
I just tried a valgrind build of gcc trunk. Configure line is
../trunk/configure \
--disable-multilib \
--disable-bootstrap \
--enable-checking=valgrind \
--enable-languages=c,c++
I get:
/home/dcb36/gcc/working/./gcc/xgcc -B/home/dcb36/gcc/working/./gcc/
-B/home/dcb36/gcc/results.20230422.valgrind/x86_64-pc-linux-gnu/bin/
-B/home/dcb36/gcc/results.20230422.valgrind/x86_64-pc-linux-gnu/lib/ -isystem
/home/dcb36/gcc/results.20230422.valgrind/x86_64-pc-linux-gnu/include -isystem
/home/dcb36/gcc/results.20230422.valgrind/x86_64-pc-linux-gnu/sys-include -g
-O2 -O2 -g -O2 -DIN_GCC -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem
./include -fpic -mlong-double-80 -DUSE_ELF_SYMVER -fcf-protection -mshstk -g
-DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -fpic -mlong-double-80
-DUSE_ELF_SYMVER -fcf-protection -mshstk -I. -I. -I../.././gcc
-I../../../trunk.year/libgcc -I../../../trunk.year/libgcc/.
-I../../../trunk.year/libgcc/../gcc -I../../../trunk.year/libgcc/../include
-I../../../trunk.year/libgcc/config/libbid -DENABLE_DECIMAL_BID_FORMAT
-DHAVE_CC_TLS -DUSE_TLS -o _bswapdi2_s.o -MT _bswapdi2_s.o -MD -MP -MF
_bswapdi2_s.dep -DSHARED -DL_bswapdi2 -c ../../../trunk.year/libgcc/libgcc2.c
==2810006== Conditional jump or move depends on uninitialised value(s)
==2810006== at 0xB9FD91: real_identical(real_value const*, real_value
const*) (real.cc:1318)
==2810006== by 0xEBFAD4: frange::operator==(frange const&) const
(value-range.cc:685)
==2810006== by 0x18BCCC0: operator!= (value-range.h:101)
==2810006== by 0x18BCCC0: operator!= (value-range.h:646)
==2810006== by 0x18BCCC0: ranger_cache::propagate_cache(tree_node*)
(gimple-range-cache.cc:1097)
