[Bug target/52294] New: [4.7 Regression] [ARM Thumb] generated asm code produces "branch out of range" error in gas with -Os -mcpu=cortex-a9

["bero at arklinux dot org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52294

             Bug #: 52294
           Summary: [4.7 Regression] [ARM Thumb] generated asm code
                    produces "branch out of range" error in gas with -Os
                    -mcpu=cortex-a9
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: bero@arklinux.org


Created attachment 26693
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26693
Preprocessed source triggering this issue

[bero@localhost ~]$ /opt/android-toolchain-4.7/bin/arm-linux-androideabi-g++
-mcpu=cortex-a9 -mthumb -Os -o agc2_amr_wb.o -c agc2_amr_wb.i 
/tmp/ccBg0Qr8.s: Assembler messages:
/tmp/ccBg0Qr8.s:110: Error: branch out of range

The problem disappears when taking out -mcpu=cortex-a9 or replacing -Os with
any other optimization level.

Reproducable with arm-linux-androideabi, arm-eabi and arm-linux-gnueabi
compilers.