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* [Bug rtl-optimization/98276] New: ICE in want_to_gcse_p, at gcse.c:808 with --param=gcse-cost-distance-ratio > 2^31
@ 2020-12-14 14:05 acoplan at gcc dot gnu.org
  2020-12-14 16:35 ` [Bug rtl-optimization/98276] " marxin at gcc dot gnu.org
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: acoplan at gcc dot gnu.org @ 2020-12-14 14:05 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98276

            Bug ID: 98276
           Summary: ICE in want_to_gcse_p, at gcse.c:808 with
                    --param=gcse-cost-distance-ratio > 2^31
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: acoplan at gcc dot gnu.org
  Target Milestone: ---

$ cat test.c
int a;
int c(void);
int b() { a && c(); }

$ aarch64-elf-gcc -c -Os --param=gcse-cost-distance-ratio=2147483648 test.c
during RTL pass: hoist
test.c: In function 'b':
test.c:3:21: internal compiler error: in want_to_gcse_p, at gcse.c:808
    3 | int b() { a && c(); }
      |                     ^
0xa4f8bb want_to_gcse_p
        /home/alecop01/toolchain/src/gcc/gcc/gcse.c:808
0xa4f9f7 hash_scan_set
        /home/alecop01/toolchain/src/gcc/gcc/gcse.c:1272
0xa4fe88 hash_scan_insn
        /home/alecop01/toolchain/src/gcc/gcc/gcse.c:1368
0xa4fe88 compute_hash_table_work
        /home/alecop01/toolchain/src/gcc/gcc/gcse.c:1551
0xa4fe88 compute_hash_table
        /home/alecop01/toolchain/src/gcc/gcc/gcse.c:1597
0xa50481 one_code_hoisting_pass
        /home/alecop01/toolchain/src/gcc/gcc/gcse.c:3549
0xa50481 execute_rtl_hoist
        /home/alecop01/toolchain/src/gcc/gcc/gcse.c:4043
0xa50481 execute
        /home/alecop01/toolchain/src/gcc/gcc/gcse.c:4124
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.

Presumably this --param should have a more restricted range?

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2020-12-16  9:22 UTC | newest]

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-- links below jump to the message on this page --
2020-12-14 14:05 [Bug rtl-optimization/98276] New: ICE in want_to_gcse_p, at gcse.c:808 with --param=gcse-cost-distance-ratio > 2^31 acoplan at gcc dot gnu.org
2020-12-14 16:35 ` [Bug rtl-optimization/98276] " marxin at gcc dot gnu.org
2020-12-16  9:21 ` cvs-commit at gcc dot gnu.org
2020-12-16  9:22 ` marxin at gcc dot gnu.org

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