[Bug target/83013] New: MicroBlaze - #ident - Error: operation combines symbols in different segments

["nathan at nathanrossi dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83013

            Bug ID: 83013
           Summary: MicroBlaze - #ident - Error: operation combines
                    symbols in different segments
           Product: gcc
           Version: 7.2.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: nathan at nathanrossi dot com
  Target Milestone: ---

Created attachment 42618
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42618&action=edit
pre-processed source

When compiling certain code which uses the #ident directive the output assembly
is broken with content being located in .sdata2 instead of .text.

See attached pre-processed basename.i from the shadow package.

microblazeel-oe-linux-gcc \
  -mcpu=v10.0 -mlittle-endian -mxl-barrel-shift -mxl-pattern-compare
-mxl-reorder \
  -mno-xl-soft-mul -mxl-multiply-high -mno-xl-soft-div -mhard-float \
  -O2 -g -c \
  -o basename.o \
  -save-temps \
  basename.i

basename.s: Assembler messages:
basename.s:961: Error: operation combines symbols in different segments
basename.s:962: Error: operation combines symbols in different segments
basename.s:965: Error: operation combines symbols in different segments
basename.s:966: Error: operation combines symbols in different segments
basename.s:969: Error: operation combines symbols in different segments
basename.s:970: Error: operation combines symbols in different segments
basename.s:976: Error: operation combines symbols in different segments
basename.s:977: Error: operation combines symbols in different segments
basename.s:980: Error: operation combines symbols in different segments
basename.s:981: Error: operation combines symbols in different segments
basename.s:987: Error: operation combines symbols in different segments
basename.s:988: Error: operation combines symbols in different segments
basename.s:991: Error: operation combines symbols in different segments
basename.s:992: Error: operation combines symbols in different segments
basename.s:997: Error: operation combines symbols in different segments
basename.s:998: Error: operation combines symbols in different segments

As can be seen in the output basename.s, the section is setup to be .text at
the beginning, but is switched to .sdata2 for the ident content but then never
changed back to .text.

        .text
$Ltext0:
#APP
        .sdata2
        .ascii "$Id$\0"

#NO_APP
        .align  2
        .globl  Basename
$LFB35:
$LM1:
        .ent    Basename
        .type   Basename, @function
Basename:
        .frame  r1,32,r15               # vars= 0, regs= 1, args= 24
        .mask   0x00088000
$LVL0:
        addik   r1,r1,-32

Which results in the $LVL0-$Ltext0 (and others) crossing sections.

This may be a duplicate of a previously reported bug.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63261