// FIXME: Handle more intrinsics.
switch (I.getIntrinsicID()) {
default: return false;
+ case Intrinsic::objectsize: {
+ ConstantInt *CI = dyn_cast<ConstantInt>(I.getOperand(2));
+ const Type *Ty = I.getCalledFunction()->getReturnType();
+
+ assert(CI && "Non-constant type in Intrinsic::objectsize?");
+
+ EVT VT;
+ if (!isTypeLegal(Ty, VT))
+ return false;
+
+ unsigned OpC = 0;
+ if (VT == MVT::i32)
+ OpC = X86::MOV32ri;
+ else if (VT == MVT::i64)
+ OpC = X86::MOV64ri;
+ else
+ return false;
+
+ unsigned ResultReg = createResultReg(TLI.getRegClassFor(VT));
+ BuildMI(MBB, DL, TII.get(OpC), ResultReg).
+ addImm(CI->getZExtValue() == 0 ? -1ULL : 0);
+ UpdateValueMap(&I, ResultReg);
+ return true;
+ }
case Intrinsic::dbg_declare: {
DbgDeclareInst *DI = cast<DbgDeclareInst>(&I);
X86AddressMode AM;
%tmp = load i8** @p ; <i8*> [#uses=1]
%0 = call i64 @llvm.objectsize.i64(i8* %tmp, i1 0) ; <i64> [#uses=1]
%cmp = icmp ne i64 %0, -1 ; <i1> [#uses=1]
-; X64: movq $-1, %rax
+; X64: movabsq $-1, %rax
; X64: cmpq $-1, %rax
br i1 %cmp, label %cond.true, label %cond.false