[Bug gas/19359] New: [2.26/2.27 regression] gas fails with Error: junk at end of line: `8' on powerpc64le-linux-gnu

[doko at debian dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=19359

            Bug ID: 19359
           Summary: [2.26/2.27 regression] gas fails with Error: junk at
                    end of line: `8' on powerpc64le-linux-gnu
           Product: binutils
           Version: 2.26
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gas
          Assignee: unassigned at sourceware dot org
          Reporter: doko at debian dot org
  Target Milestone: ---

Created attachment 8844
  --> https://sourceware.org/bugzilla/attachment.cgi?id=8844&action=edit
at.i

building with -O2 works around the issue. The last successful build I see is
with 2.25 (Dec 2014).

$ gcc -save-temps -DHAVE_CONFIG_H -DNO_DEBUG -Wall -O3 -mcpu=powerpc64le
-I../include -pthread -I/usr/include/freetype2 -c at.c
at.s: Assembler messages:
at.s:2035: Error: junk at end of line: `8'
at.s:2249: Error: junk at end of line: `8'
$ as -v -a64 -many -mlittle -o at.o at.s
GNU assembler version 2.25.90 (powerpc64le-linux-gnu) using BFD version (GNU
Binutils for Ubuntu) 2.25.90.20151211
at.s: Assembler messages:
at.s:2035: Error: junk at end of line: `8'
at.s:2249: Error: junk at end of line: `8'

complaining about:

        mfcr 12,8

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