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* [Bug target/103396] New: [GCN][BUILD] ICE RTL check: access of elt 4 of vector with last elt 3 in move_callee_saved_registers, at config/gcn/gcn.c:2821
@ 2021-11-23 20:48 burnus at gcc dot gnu.org
  2021-11-23 21:13 ` [Bug target/103396] " pinskia at gcc dot gnu.org
                   ` (6 more replies)
  0 siblings, 7 replies; 8+ messages in thread
From: burnus at gcc dot gnu.org @ 2021-11-23 20:48 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103396

            Bug ID: 103396
           Summary: [GCN][BUILD] ICE RTL check: access of elt 4 of vector
                    with last elt 3 in move_callee_saved_registers, at
                    config/gcn/gcn.c:2821
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: build, ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: burnus at gcc dot gnu.org
                CC: ams at gcc dot gnu.org, rdapp at gcc dot gnu.org, sayle at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-gnu-linux
            Target: amdgcn-amdhsa

Bisecting points at r12-5436-gdc915b361bbc99da83fc53db7f7e0e28d0ce12c8
Date:   Sun Nov 21 11:40:08 2021 +0000

    Tweak tree-ssa-math-opts.c to solve PR target/102117.
...
    2021-11-21  Roger Sayle  <roger@nextmovesoftware.com>
                Robin Dapp  <rdapp@linux.ibm.com>

    gcc/ChangeLog
            PR target/102117
            * tree-ssa-math-opts.c (convert_mult_to_widen): Recognize
            signed WIDEN_MULT_EXPR if the target supports umul_widen_optab.
...

Compiling libgfortran/runtime/environ.c during bootstrap with -march=gfx900 -O2
fails with:

during RTL pass: pro_and_epilogue

libgfortran/runtime/environ.c: In function 'search_unit':
libgfortran/runtime/environ.c:319:1: internal compiler error: RTL check: access
of elt 4 of vector with last elt 3 in move_callee_saved_registers, at
config/gcn/gcn.c:2821
  319 | }
      | ^
0x908087 rtvec_check_failed_bounds(rtvec_def const*, int, char const*, int,
char const*)
        gcc-mainline/gcc/rtl.c:975
0x9aa041 move_callee_saved_registers
        gcc-mainline/gcc/config/gcn/gcn.c:2821
0x14679cf gcn_expand_prologue()
        gcc-mainline/gcc/config/gcn/gcn.c:2939
0x17d331a gen_prologue()
        gcc-mainline/gcc/config/gcn/gcn.md:714
0x1460758 target_gen_prologue
        ./insn-target-def.h:433
0xdb3537 make_prologue_seq
        gcc-mainline/gcc/function.c:5823
0xdb36c2 thread_prologue_and_epilogue_insns()

^ permalink raw reply	[flat|nested] 8+ messages in thread
end of thread, other threads:[~2021-11-25 16:14 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-11-23 20:48 [Bug target/103396] New: [GCN][BUILD] ICE RTL check: access of elt 4 of vector with last elt 3 in move_callee_saved_registers, at config/gcn/gcn.c:2821 burnus at gcc dot gnu.org
2021-11-23 21:13 ` [Bug target/103396] " pinskia at gcc dot gnu.org
2021-11-23 21:16 ` pinskia at gcc dot gnu.org
2021-11-23 21:20 ` burnus at gcc dot gnu.org
2021-11-23 21:25 ` [Bug target/103396] [12 Regression][GCN][BUILD] " burnus at gcc dot gnu.org
2021-11-24 12:30 ` ams at gcc dot gnu.org
2021-11-25 16:05 ` cvs-commit at gcc dot gnu.org
2021-11-25 16:14 ` ams at gcc dot gnu.org

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