https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114930
Bug ID: 114930 Summary: ICE in fld_incomplete_type_of when building libwebp with -std=c23 -flto Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ipa Assignee: unassigned at gcc dot gnu.org Reporter: sjames at gcc dot gnu.org Target Milestone: --- Created attachment 58093 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58093&action=edit libwebpdecode_la-vp8l_dec.i.xz ``` $ gcc -c libwebpdecode_la-vp8l_dec.i -std=c23 -flto /var/tmp/portage/media-libs/libwebp-1.3.2/work/libwebp-1.3.2/src/dec/vp8l_dec.c: In function ‘CopySmallPattern8b’: /var/tmp/portage/media-libs/libwebp-1.3.2/work/libwebp-1.3.2/src/dec/vp8l_dec.c:908:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 908 | while ((uintptr_t)dst & 3) { | ^ /var/tmp/portage/media-libs/libwebp-1.3.2/work/libwebp-1.3.2/src/dec/vp8l_dec.c: In function ‘CopySmallPattern32b’: /var/tmp/portage/media-libs/libwebp-1.3.2/work/libwebp-1.3.2/src/dec/vp8l_dec.c:977:7: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 977 | if ((uintptr_t)dst & 4) { // Align 'dst' to 8-bytes boundary. | ^ /var/tmp/portage/media-libs/libwebp-1.3.2/work/libwebp-1.3.2/src/dec/vp8l_dec.c: In function ‘CopyBlock32b’: /var/tmp/portage/media-libs/libwebp-1.3.2/work/libwebp-1.3.2/src/dec/vp8l_dec.c:994:36: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 994 | if (dist <= 2 && length >= 4 && ((uintptr_t)dst & 3) == 0) { | ^ during IPA pass: *free_lang_data /var/tmp/portage/media-libs/libwebp-1.3.2/work/libwebp-1.3.2/src/dec/vp8l_dec.c: At top level: /var/tmp/portage/media-libs/libwebp-1.3.2/work/libwebp-1.3.2/src/dec/vp8l_dec.c:1744:1: internal compiler error: in fld_incomplete_type_of, at ipa-free-lang-data.cc:257 1744 | } | ^ 0x5564762f6448 fld_incomplete_type_of /usr/src/debug/sys-devel/gcc-14.0.1_pre20240430/gcc-14.1.0-RC-20240430/gcc/ipa-free-lang-data.cc:257 0x5564778ff8fd fld_simplified_type /usr/src/debug/sys-devel/gcc-14.0.1_pre20240430/gcc-14.1.0-RC-20240430/gcc/ipa-free-lang-data.cc:344 0x5564778ff8fd free_lang_data_in_type /usr/src/debug/sys-devel/gcc-14.0.1_pre20240430/gcc-14.1.0-RC-20240430/gcc/ipa-free-lang-data.cc:439 0x556477fd53b0 free_lang_data_in_cgraph /usr/src/debug/sys-devel/gcc-14.0.1_pre20240430/gcc-14.1.0-RC-20240430/gcc/ipa-free-lang-data.cc:1072 0x556477fd53b0 free_lang_data /usr/src/debug/sys-devel/gcc-14.0.1_pre20240430/gcc-14.1.0-RC-20240430/gcc/ipa-free-lang-data.cc:1109 0x556477fd53b0 execute /usr/src/debug/sys-devel/gcc-14.0.1_pre20240430/gcc-14.1.0-RC-20240430/gcc/ipa-free-lang-data.cc:1176 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://bugs.gentoo.org/> for instructions. ```