[LLVMbugs] [Bug 8621] New: error in backend: Unsupported asm: input constraint with a matching output constraint of incompatible type!

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=8621

           Summary: error in backend: Unsupported asm: input constraint
                    with a matching  output constraint of incompatible
                    type!
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: santosh.nagarakatte at gmail.com
                CC: llvmbugs at cs.uiuc.edu


I am compiling bitvisor-1.1, a hypervisor using clang from the trunk with
revision 119293. I am using ubuntu-maverick 10.10 on x86-64.

When compiling the cpu_interpreter.c file. I am getting the following error.


fatal error: error in backend: Unsupported asm: input constraint with a
matching
      output constraint of incompatible type!

I have attached the .i file with this bug report and cc1 command line is given
below.

clang -cc1 -triple x86_64-unknown-linux-gnu -S -disable-free -main-file-name
cpu_interpreter.c -mrelocation-model static -mdisable-fp-elim -masm-verbose
-mconstructor-aliases -munwind-tables -disable-red-zone -target-cpu x86-64
-target-feature -sse -target-linker-version 2.20.51 -v -g -nostdinc
-resource-dir
/home/santoshn/llvm/llvm-svn-obj/Debug+Asserts/bin/../lib/clang/2.9 -O2 -Wall
-ferror-limit 19 -fmessage-length 80 -fno-builtin -fgnu-runtime
-fdiagnostics-show-option -fcolor-diagnostics -o cpu_interpreter.s -x
cpp-output cpu_interpreter.i

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