https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84164
Bug ID: 84164 Summary: [8 Regression] ICE: in elimination_costs_in_insn, at reload1.c:3633 at -O1 Product: gcc Version: 8.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: zsojka at seznam dot cz Target Milestone: --- Host: x86_64-pc-linux-gnu Target: aarch64-unknown-linux-gnu Created attachment 43317 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43317&action=edit reduced testcase This occurs only with the aarch64-unknown-linux-gnu target. Compiler output: $ cc1 -quiet testcase.c -O during RTL pass: ira testcase.c: In function 'foo': testcase.c:15:1: internal compiler error: in elimination_costs_in_insn, at reload1.c:3633 } ^ 0xbed921 elimination_costs_in_insn /repo/gcc-trunk/gcc/reload1.c:3630 0xbf68cf calculate_elim_costs_all_insns() /repo/gcc-trunk/gcc/reload1.c:1607 0xa64ced ira_costs() /repo/gcc-trunk/gcc/ira-costs.c:2249 0xa5d17c ira_build() /repo/gcc-trunk/gcc/ira-build.c:3427 0xa53d66 ira /repo/gcc-trunk/gcc/ira.c:5293 0xa53d66 execute /repo/gcc-trunk/gcc/ira.c:5604 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. $ xgcc -v Using built-in specs. COLLECT_GCC=/repo/build-trunk-257290-checking-yes-rtl-df-extra-aarch64/./gcc/xgcc Target: aarch64-unknown-linux-gnu Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++ --enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra --with-cloog --with-ppl --with-isl --with-sysroot=/usr/aarch64-unknown-linux-gnu --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=aarch64-unknown-linux-gnu --with-ld=/usr/bin/aarch64-unknown-linux-gnu-ld --with-as=/usr/bin/aarch64-unknown-linux-gnu-as --disable-libstdcxx-pch --prefix=/repo/gcc-trunk//binary-trunk-257290-checking-yes-rtl-df-extra-aarch64 Thread model: posix gcc version 8.0.1 20180201 (experimental) (GCC)