https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119131
--- Comment #5 from Zdenek Sojka <zsojka at seznam dot cz> --- Created attachment 60666 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60666&action=edit auto-reduced testcase showing a similar issues with +Int The other (cvise-reduced) testcase shows a similar issue with +Inf. It might be in the end be the same if +Inf is generated by division by zero, but I better show it as well. $ aarch64-unknown-linux-gnu-gcc -Ofast testcase-min0.i testcase-min0.i: In function 'foo0': testcase-min0.i:37:11: warning: no semicolon at end of struct or union 37 | })((union { | ^ testcase-min0.i:40:14: warning: no semicolon at end of struct or union 40 | })((union { | ^ testcase-min0.i:43:17: warning: no semicolon at end of struct or union 43 | })((union { | ^ testcase-min0.i:46:17: warning: no semicolon at end of struct or union 46 | })(v128u8)v128d64_0) | ^ testcase-min0.i: In function 'main': testcase-min0.i:64:1: error: unrecognizable insn: 64 | } | ^ (insn 61 59 14 4 (set (reg:SD 32 v0 [orig:102 iftmp.0_3 ] [102]) (const_double:SD +Inf [+Inf])) -1 (nil)) during RTL pass: sched_fusion testcase-min0.i:64:1: internal compiler error: in get_attr_type, at config/aarch64/aarch64.md:17054 0x282e921 internal_error(char const*, ...) /repo/gcc-trunk/gcc/diagnostic-global-context.cc:517 0xcb0631 fancy_abort(char const*, int, char const*) /repo/gcc-trunk/gcc/diagnostic.cc:1722 0x8c9d85 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) /repo/gcc-trunk/gcc/rtl-error.cc:108 0x8c9e02 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*) /repo/gcc-trunk/gcc/rtl-error.cc:116 0xa1ec54 get_attr_type(rtx_insn*) /repo/gcc-trunk/gcc/config/aarch64/aarch64.md:17054 0x18ab0f6 aarch64_sched_variable_issue /repo/gcc-trunk/gcc/config/aarch64/aarch64.cc:16300 0x25adfdd schedule_block(basic_block_def**, void*) /repo/gcc-trunk/gcc/haifa-sched.cc:6928 0x13f092a schedule_region /repo/gcc-trunk/gcc/sched-rgn.cc:3213 0x13f092a schedule_insns() /repo/gcc-trunk/gcc/sched-rgn.cc:3535 0x13f0ce0 schedule_insns() /repo/gcc-trunk/gcc/sched-rgn.cc:3946 0x13f0ce0 rest_of_handle_sched_fusion /repo/gcc-trunk/gcc/sched-rgn.cc:3770 0x13f0ce0 execute /repo/gcc-trunk/gcc/sched-rgn.cc:3948 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.
