[Bug target/111461] New: [14.0 Regression] RISC-V rv32gc bootstrap ICEs with --enable-checking=rtl

[Bug target/111461] New: [14.0 Regression] RISC-V rv32gc bootstrap ICEs with --enable-checking=rtl

[patrick at rivosinc dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111461

            Bug ID: 111461
           Summary: [14.0 Regression] RISC-V rv32gc bootstrap ICEs with
                    --enable-checking=rtl
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: patrick at rivosinc dot com
  Target Milestone: ---

Created attachment 55923
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55923&action=edit
Backtrace

Bootstrap fails with an ICE.

during RTL pass: expand
offtime.c: In function '__offtime':
offtime.c:79:6: internal compiler error: RTL check: expected elt 0 type 'e' or
'u', have 'w' (rtx const_int) in riscv_legitimize_const_move, at
config/riscv/riscv.cc:2176
   79 |   ip = __mon_yday[__isleap(y)];
      |   ~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Caused by: r14-3548-gd16af3ebea8

[Bug target/111461] [14.0 Regression] RISC-V rv32gc bootstrap ICEs with --enable-checking=rtl

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111461

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |14.0
             Target|                            |riscv

[Bug target/111461] [14.0 Regression] RISC-V rv32gc bootstrap ICEs with --enable-checking=rtl

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111461

--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Patrick O'Neill <poneill@gcc.gnu.org>:

https://gcc.gnu.org/g:5b554c559d0103bfc1a68777907945ec3035a2bd

commit r14-4154-g5b554c559d0103bfc1a68777907945ec3035a2bd
Author: Patrick O'Neill <patrick@rivosinc.com>
Date:   Tue Sep 19 10:03:35 2023 -0700

    RISC-V: Fix --enable-checking=rtl ICE on rv32gc bootstrap

    Resolves PR 111461.

    during RTL pass: expand
    offtime.c: In function '__offtime':
    offtime.c:79:6: internal compiler error: RTL check: expected elt 0 type 'e'
or 'u', have 'w' (rtx const_int) in riscv_legitimize_const_move, at
config/riscv/riscv.cc:2176
       79 |   ip = __mon_yday[__isleap(y)];

    Tested on rv32gc glibc with --enable-checking=rtl.

    2023-09-19 Juzhe Zhong <juzhe.zhong@rivai.ai>

    gcc/ChangeLog:

            * config/riscv/riscv.cc (riscv_legitimize_const_move): Eliminate
            src_op_0 var to avoid rtl check error.

    Tested-by: Patrick O'Neill <patrick@rivosinc.com>

[Bug target/111461] [14.0 Regression] RISC-V rv32gc bootstrap ICEs with --enable-checking=rtl

[patrick at rivosinc dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111461

Patrick O'Neill <patrick at rivosinc dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #2 from Patrick O'Neill <patrick at rivosinc dot com> ---
Fixed on trunk.