https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116406
Bug ID: 116406 Summary: [15 Regression] ICE: in add_to_value, at tree-ssa-pre.cc:695 with -Os -finstrument-functions-once -mfpmath=387 Product: gcc Version: 15.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Target Milestone: --- Host: x86_64-pc-linux-gnu Target: x86_64-pc-linux-gnu Created attachment 58947 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58947&action=edit reduced testcase Compiler output: $ x86_64-pc-linux-gnu-gcc -Os -finstrument-functions-once -mfpmath=387 testcase.c during GIMPLE pass: pre testcase.c: In function 'foo': testcase.c:8:1: internal compiler error: in add_to_value, at tree-ssa-pre.cc:695 8 | foo (int c, U u) | ^~~ 0x2b4e30e internal_error(char const*, ...) /repo/gcc-trunk/gcc/diagnostic-global-context.cc:491 0xe51fd1 fancy_abort(char const*, int, char const*) /repo/gcc-trunk/gcc/diagnostic.cc:1772 0x888c6b add_to_value /repo/gcc-trunk/gcc/tree-ssa-pre.cc:695 0x1773a3a phi_translate_1 /repo/gcc-trunk/gcc/tree-ssa-pre.cc:1676 0x17744c9 phi_translate /repo/gcc-trunk/gcc/tree-ssa-pre.cc:1743 0x17746ef phi_translate_set /repo/gcc-trunk/gcc/tree-ssa-pre.cc:1788 0x1777b65 compute_antic_aux /repo/gcc-trunk/gcc/tree-ssa-pre.cc:2137 0x1777b65 compute_antic /repo/gcc-trunk/gcc/tree-ssa-pre.cc:2492 0x1777b65 execute /repo/gcc-trunk/gcc/tree-ssa-pre.cc:4502 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. $ x86_64-pc-linux-gnu-gcc -v Using built-in specs. COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r15-2962-20240817120017-ga11dcaff9fc-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/15.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++ --enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra --disable-bootstrap --with-cloog --with-ppl --with-isl --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld --with-as=/usr/bin/x86_64-pc-linux-gnu-as --enable-libsanitizer --disable-libstdcxx-pch --prefix=/repo/gcc-trunk//binary-trunk-r15-2962-20240817120017-ga11dcaff9fc-checking-yes-rtl-df-extra-nobootstrap-amd64 Thread model: posix Supported LTO compression algorithms: zlib zstd gcc version 15.0.0 20240817 (experimental) (GCC)