[Bug target/56091] New: gcc.target/arm/pr43137.c fails for THUMB-1

[janis at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56091

             Bug #: 56091
           Summary: gcc.target/arm/pr43137.c fails for THUMB-1
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: janis@gcc.gnu.org
            Target: arm-none-eabi


This test failure now appears for mainline arm-none-eabi for all THUMB-1
effective targets:

    FAIL: gcc.target/arm/pr43137.c scan-assembler-not movtr1, r[1-9]

This is a compile-only test so I was able to run it for 34 sets of flags
comprising all values of -march supported by GAS, with and without -mthumb as
appropriate.  The test failure begins with this patch to GCC mainline:

   r187015 | rsandifo | 2012-05-01 07:45:24 -0700 (Tue, 01 May 2012) | 33 lines

This is a regression from GCC 4.7