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* [Bug lto/95620] New: [10/11 Regression] relocation truncated to fit: R_X86_64_PC32 against `.bss'
@ 2020-06-09 20:53 marxin at gcc dot gnu.org
  2020-06-10  6:19 ` [Bug lto/95620] " marxin at gcc dot gnu.org
                   ` (11 more replies)
  0 siblings, 12 replies; 13+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-06-09 20:53 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95620

            Bug ID: 95620
           Summary: [10/11 Regression] relocation truncated to fit:
                    R_X86_64_PC32 against `.bss'
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: rejects-valid
          Severity: normal
          Priority: P3
         Component: lto
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: hubicka at gcc dot gnu.org, marxin at gcc dot gnu.org
  Target Milestone: ---

It's a test-case reduced from opa-ff project:

$ cat intel.i
double a[353783808];
int b, c, d;

int
main() {
  for (; b;)
#pragma omp parallel
    a[c] = 1;
  for (;; b++)
    if (a[c])
      d++;
}

$ gcc intel.i -mcmodel=medium -O2 -fopenmp
$ gcc intel.i -mcmodel=medium -O2 -flto -fopenmp
/tmp/ccaU2BEX.ltrans0.ltrans.o: in function `main':
<artificial>:(.text.startup+0x2): relocation truncated to fit: R_X86_64_PC32
against `.bss'
<artificial>:(.text.startup+0x22): relocation truncated to fit: R_X86_64_PC32
against `.bss'
collect2: error: ld returned 1 exit status

They have a huge .bss array (~350MB).
Since r10-5244-g6d8fd122c4f856e9 we can't handle it, the maximum value
supported by LTO is ~270MB.

^ permalink raw reply	[flat|nested] 13+ messages in thread
end of thread, other threads:[~2023-07-07  8:54 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-06-09 20:53 [Bug lto/95620] New: [10/11 Regression] relocation truncated to fit: R_X86_64_PC32 against `.bss' marxin at gcc dot gnu.org
2020-06-10  6:19 ` [Bug lto/95620] " marxin at gcc dot gnu.org
2020-06-10  7:21 ` marxin at gcc dot gnu.org
2020-06-26 12:09 ` [Bug target/95620] " rguenth at gcc dot gnu.org
2020-06-26 13:00 ` hjl.tools at gmail dot com
2020-06-26 21:03 ` hjl.tools at gmail dot com
2020-06-29  9:46 ` marxin at gcc dot gnu.org
2020-07-18 15:56 ` cvs-commit at gcc dot gnu.org
2020-07-18 15:57 ` hjl.tools at gmail dot com
2020-07-23  6:51 ` rguenth at gcc dot gnu.org
2021-04-08 12:02 ` [Bug target/95620] [10 " rguenth at gcc dot gnu.org
2022-06-28 10:41 ` jakub at gcc dot gnu.org
2023-07-07  8:54 ` rguenth at gcc dot gnu.org

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