https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83488
Bug ID: 83488 Summary: [8 Regression] ICE on a CET test-case Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: marxin at gcc dot gnu.org CC: igor.v.tsimbalist at intel dot com Target Milestone: --- Host: x86_64-linux-gnu Starting from r253977 we ICE on: $ gcc /home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/cet-rdssp-1.c -mavx5124vnniw /home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/cet-rdssp-1.c: In function ‘test’: /home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/cet-rdssp-1.c:32:1: error: unrecognizable insn: } ^ (insn 8 7 9 2 (set (reg:DI 87) (unspec_volatile:DI [ (reg:DI 88) ] UNSPECV_NOP_RDSSP)) "/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/cet-rdssp-1.c":19 -1 (nil)) during RTL pass: vregs /home/marxin/Programming/gcc/gcc/testsuite/gcc.target/i386/cet-rdssp-1.c:32:1: internal compiler error: in extract_insn, at recog.c:2306 0x5afca1 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) ../../gcc/rtl-error.c:108 0x5afcc0 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*) ../../gcc/rtl-error.c:116 0xb1a757 extract_insn(rtx_insn*) ../../gcc/recog.c:2306 0x8c54cd instantiate_virtual_regs_in_insn ../../gcc/function.c:1591 0x8c54cd instantiate_virtual_regs ../../gcc/function.c:1960 0x8c54cd execute ../../gcc/function.c:2009