[LLVMbugs] [Bug 828] NEW: X86 backend lacks 'q' inlineasm constraint

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Tue Jul 11 15:46:52 PDT 2006


           Summary: X86 backend lacks 'q' inlineasm constraint
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Backend: X86
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: jackrobi at gmail.com

cat |llvm-as|llc
target endian = little
target pointersize = 32
target triple = "i686-pc-linux-gnu"

implementation   ; Functions:

void %_ZN5() {

cond_true9:             ; preds = %entry
        %tmp3.i.i = call int asm sideeffect "lock; cmpxchg $1,$2",
"={ax},q,m,0,~{dirflag},~{fpsr},~{flags},~{memory}"( int 0, int* null, int 0 ) 
              ; <int> [#uses=0]
        ret void
llc: SelectionDAGISel.cpp:2230: void
llvm::SelectionDAGLowering::visitInlineAsm(llvm::CallInst&): Assertion `CTy ==
TargetLowering::C_RegisterClass && "Unknown op type!"' failed.
llc((anonymous namespace)::PrintStackTrace()+0x1f)[0x878a07f]

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