https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111425
--- Comment #5 from Frank Scheiner <frank.scheiner at web dot de> --- (In reply to Richard Biener from comment #2) > Confirmed on trunk - we ICE in cselib during var-tracking, so > -fno-var-tracking would be a workaround (or -g0). Also confirming that both - i.e. using `-fno-var-tracking` or `-g0` - indeed workaround the problem for me (this time with v6.6-rc2 which without those options still shows the original problem): ``` # ia64-linux-gcc -fno-var-tracking -Wp,-MMD,net/ipv4/.fib_semantics.o.d -nostdinc -I./arch/ia64/include -I./arch/ia64/include/generated -I./include -I./arch/ia64/include/uapi -I./arch/ia64/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/compiler-version.h -include ./include/linux/kconfig.h -include ./include/linux/compiler_types.h -D__KERNEL__ -DHAVE_WORKING_TEXT_ALIGN -DHAVE_MODEL_SMALL_ATTRIBUTE -DHAVE_SERIALIZE_DIRECTIVE -fmacro-prefix-map=./= -std=gnu11 -fshort-wchar -funsigned-char -fno-common -fno-PIE -fno-strict-aliasing -pipe -ffixed-r13 -mfixed-range=f12-f15,f32-f127 -frename-registers -fno-optimize-sibling-calls -fno-delete-null-pointer-checks -O2 -fno-allow-store-data-races -fno-stack-protector -fomit-frame-pointer -ftrivial-auto-var-init=zero -fno-stack-clash-protection -falign-functions=32 -fstrict-flex-arrays=3 -fno-strict-overflow -fno-stack-check -fconserve-stack -Wall -Wundef -Werror=implicit-function-declaration -Werror=implicit-int -Werror=return-type -Werror=strict-prototypes -Wno-format-security -Wno-trigraphs -Wno-frame-address -Wno-address-of-packed-member -Wframe-larger-than=2048 -Wno-main -Wno-unused-but-set-variable -Wno-unused-const-variable -Wno-dangling-pointer -Wvla -Wno-pointer-sign -Wcast-function-type -Wno-array-bounds -Wno-alloc-size-larger-than -Wimplicit-fallthrough=5 -Werror=date-time -Werror=incompatible-pointer-types -Werror=designated-init -Wenum-conversion -Wno-unused-but-set-variable -Wno-unused-const-variable -Wno-restrict -Wno-packed-not-aligned -Wno-format-overflow -Wno-format-truncation -Wno-stringop-overflow -Wno-stringop-truncation -Wno-missing-field-initializers -Wno-type-limits -Wno-shift-negative-value -Wno-maybe-uninitialized -Wno-sign-compare -g -mconstant-gp -DKBUILD_MODFILE='"net/ipv4/fib_semantics"' -DKBUILD_BASENAME='"fib_semantics"' -DKBUILD_MODNAME='"fib_semantics"' -D__KBUILD_MODNAME=kmod_fib_semantics -c -o net/ipv4/fib_semantics.o net/ipv4/fib_semantics.c # echo $? 0 # rm net/ipv4/fib_semantics.o # ia64-linux-gcc -Wp,-MMD,net/ipv4/.fib_semantics.o.d -nostdinc -I./arch/ia64/include -I./arch/ia64/include/generated -I./include -I./arch/ia64/include/uapi -I./arch/ia64/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/compiler-version.h -include ./include/linux/kconfig.h -include ./include/linux/compiler_types.h -D__KERNEL__ -DHAVE_WORKING_TEXT_ALIGN -DHAVE_MODEL_SMALL_ATTRIBUTE -DHAVE_SERIALIZE_DIRECTIVE -fmacro-prefix-map=./= -std=gnu11 -fshort-wchar -funsigned-char -fno-common -fno-PIE -fno-strict-aliasing -pipe -ffixed-r13 -mfixed-range=f12-f15,f32-f127 -frename-registers -fno-optimize-sibling-calls -fno-delete-null-pointer-checks -O2 -fno-allow-store-data-races -fno-stack-protector -fomit-frame-pointer -ftrivial-auto-var-init=zero -fno-stack-clash-protection -falign-functions=32 -fstrict-flex-arrays=3 -fno-strict-overflow -fno-stack-check -fconserve-stack -Wall -Wundef -Werror=implicit-function-declaration -Werror=implicit-int -Werror=return-type -Werror=strict-prototypes -Wno-format-security -Wno-trigraphs -Wno-frame-address -Wno-address-of-packed-member -Wframe-larger-than=2048 -Wno-main -Wno-unused-but-set-variable -Wno-unused-const-variable -Wno-dangling-pointer -Wvla -Wno-pointer-sign -Wcast-function-type -Wno-array-bounds -Wno-alloc-size-larger-than -Wimplicit-fallthrough=5 -Werror=date-time -Werror=incompatible-pointer-types -Werror=designated-init -Wenum-conversion -Wno-unused-but-set-variable -Wno-unused-const-variable -Wno-restrict -Wno-packed-not-aligned -Wno-format-overflow -Wno-format-truncation -Wno-stringop-overflow -Wno-stringop-truncation -Wno-missing-field-initializers -Wno-type-limits -Wno-shift-negative-value -Wno-maybe-uninitialized -Wno-sign-compare -g0 -mconstant-gp -DKBUILD_MODFILE='"net/ipv4/fib_semantics"' -DKBUILD_BASENAME='"fib_semantics"' -DKBUILD_MODNAME='"fib_semantics"' -D__KBUILD_MODNAME=kmod_fib_semantics -c -o net/ipv4/fib_semantics.o net/ipv4/fib_semantics.c # echo $? 0 ```
