https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100841
Bug ID: 100841
Summary: xtensa-linux: dwarf2cfi.c:291:12: error: comparison of
integer expressions of different signedness: 'const
unsigned int' and 'int'
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: jbg...@lug-owl.de
Target Milestone: ---
Hi!
After having started automated testing again, I noticed this as of
ef8176e0fac935c095cc39f4ecdfd43cdb8cb3f3, building with a quite recent GCC:
$ ../gcc/configure --target=xtensa-linux --enable-werror-always
--enable-languages=all --disable-gcov --disable-shared --disable-threads
--without-headers
--prefix=/var/lib/laminar/run/gcc-xtensa-linux/2/toolchain-install
$ make all-gcc
[...]
/usr/lib/gcc-snapshot/bin/g++ -fno-PIE -c -g -O2 -DIN_GCC
-DCROSS_DIRECTORY_STRUCTURE -fno-exceptions -fno-rtti
-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute
-Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -I.
-I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include
-I../../gcc/gcc/../libcpp/include -I../../gcc/gcc/../libcody
-I../../gcc/gcc/../libdecnumber -I../../gcc/gcc/../libdecnumber/dpd
-I../libdecnumber -I../../gcc/gcc/../libbacktrace -o dwarf2cfi.o -MT
dwarf2cfi.o -MMD -MP -MF ./.deps/dwarf2cfi.TPo ../../gcc/gcc/dwarf2cfi.c
../../gcc/gcc/dwarf2cfi.c: In function 'void init_one_dwarf_reg_size(int,
machine_mode, rtx, machine_mode, init_one_dwarf_reg_state*)':
../../gcc/gcc/dwarf2cfi.c:291:12: error: comparison of integer expressions of
different signedness: 'const unsigned int' and 'int' [-Werror=sign-compare]
291 | if (rnum >= DWARF_FRAME_REGISTERS)
cc1plus: all warnings being treated as errors
make[1]: *** [Makefile:1141: dwarf2cfi.o] Error 1
make[1]: Leaving directory
'/var/lib/laminar/run/gcc-xtensa-linux/2/toolchain-build/gcc'
make: *** [Makefile:4414: all-gcc] Error 2
Should be simple to fix I guess.
Thanks,
Jan-Benedict
