http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54595

             Bug #: 54595
           Summary: [4.8 Regression] symbol causes a section type conflict
                    with itself with -O -g -fdata-section
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: bernhard.rosenkran...@linaro.org


Created attachment 28198
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28198
Preprocessed source, gzipped because it's huge

Compiling llvm with -O -g -fdata-section results in

$ /opt/android-toolchain-trunk/bin/arm-linux-androideabi-g++ -O -g
-fdata-sections -c FunctionAttrs.i -o
out/target/product/maguro/obj/STATIC_LIBRARIES/libLLVMipo_intermediates/FunctionAttrs.o
 
In file included from external/llvm/include/llvm/Argument.h:18:0,
                 from external/llvm/include/llvm/Function.h:24,
                 from external/llvm/include/llvm/Analysis/CallGraph.h:54,
                 from external/llvm/include/llvm/CallGraphSCCPass.h:25,
                 from external/llvm/lib/Transforms/IPO/FunctionAttrs.cpp:23:
external/llvm/include/llvm/Attributes.h:113:52: error:
llvm::Attribute::ReadOnly causes a section type conflict with
llvm::Attribute::ReadOnly
 DECLARE_LLVM_ATTRIBUTE(ReadOnly,1<<10) ///< Function only reads from memory
                                                    ^

I haven't tried to isolate the cause/reduce the test case yet; this might be a
dupe of
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53475

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