[llvm-bugs] [Bug 31007] New: inline asm 0bH conflict

via llvm-bugs llvm-bugs at lists.llvm.org
Sun Nov 13 04:47:16 PST 2016


https://llvm.org/bugs/show_bug.cgi?id=31007

            Bug ID: 31007
           Summary: inline asm 0bH conflict
           Product: new-bugs
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: ziv.izhar at intel.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

there is a conflict in imm operands between 0b which states "binary" and H
which states "Hexa":

int main(){
    __asm{
        add al,0bH
    }
}

clang first parses the 0b and thinks "binary" but then the H isn't a valid
character therefore generates an error.
0bH can be b in hexa, therefore it's a parsing problem.

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