[Bug target/83585] New: [8 Regression] Assembler messages: Error: can't resolve `.text' {.text section} - `.LCOLDB0' {.text.unlikely section}

[asolokha at gmx dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83585

            Bug ID: 83585
           Summary: [8 Regression] Assembler messages: Error: can't
                    resolve `.text' {.text section} - `.LCOLDB0'
                    {.text.unlikely section}
           Product: gcc
           Version: 8.0
            Status: UNCONFIRMED
          Keywords: assemble-failure
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
  Target Milestone: ---

gas 2.29.1 rejects the code generated by gcc-8.0.0-alpha20171217 snapshot
(r255766) w/ -O2 (-O3, -Ofast) -g -fno-tree-dce -fno-guess-branch-probability
for the following snippet:

int
j3 (int tz)
{
  int wy;

  for (wy = 0; wy < 2; ++wy)
    if (tz != 0)
      {
        int yd;

        for (yd = 0; yd < 2; ++yd)
          {
          }

        return 0;
      }

  return;
}

% x86_64-pc-linux-gnu-gcc-8.0.0-alpha20171224 -O2 -g -fno-tree-dce
-fno-guess-branch-probability -w -c ixdsdxfe.c
/tmp/ccWUPZAP.s: Assembler messages:
/tmp/ccWUPZAP.s:215: Error: can't resolve `.text' {.text section} - `.LCOLDB0'
{.text.unlikely section}
/tmp/ccWUPZAP.s:216: Error: can't resolve `.text' {.text section} - `.LCOLDB0'
{.text.unlikely section}
/tmp/ccWUPZAP.s:220: Error: can't resolve `.text' {.text section} - `.LCOLDB0'
{.text.unlikely section}
/tmp/ccWUPZAP.s:221: Error: can't resolve `.text' {.text section} - `.LCOLDB0'
{.text.unlikely section}
/tmp/ccWUPZAP.s:228: Error: can't resolve `.text' {.text section} - `.LCOLDB0'
{.text.unlikely section}
/tmp/ccWUPZAP.s:229: Error: can't resolve `.text' {.text section} - `.LCOLDB0'
{.text.unlikely section}