[Bug middle-end/55642] New: [4.8 Regression] Invalid thumb code generated ("thumb conditional instruction should be in IT block")

[Bernhard.Rosenkranzer at linaro dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55642



             Bug #: 55642

           Summary: [4.8 Regression] Invalid thumb code generated ("thumb

                    conditional instruction should be in IT block")

    Classification: Unclassified

           Product: gcc

           Version: 4.8.0

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: middle-end

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: bernhard.rosenkran...@linaro.org





Created attachment 28914

  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28914

Test case (not yet reduced)



Building the attached preprocessed code with -std=gnu++11 -O2 -mthumb

-mcpu=cortex-a9 results in errors from the assembler:



[bero@localhost grouper-4.2.1-gcc-4.8 (master)]$

/opt/android-toolchain-trunk/bin/arm-linux-androideabi-g++ -std=gnu++11 -o

ARMAsmParser.o -O2 -mthumb  -mcpu=cortex-a9 -c ARMAsmParser.i 

/tmp/ccKYPdeC.s: Assembler messages:

/tmp/ccKYPdeC.s:7949: Error: thumb conditional instruction should be in IT

block -- `subne r2,r2,r3,asr#31'

/tmp/ccKYPdeC.s:21058: Error: thumb conditional instruction should be in IT

block -- `subne r2,r2,r3,asr#31'