GlobalISel: translate the @llvm.objectsize intrinsic.
llvm-svn: 284527
diff --git a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
index e073717..dd64cc7 100644
--- a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
@@ -392,6 +392,13 @@
case Intrinsic::smul_with_overflow: Op = TargetOpcode::G_SMULO; break;
case Intrinsic::memcpy:
return translateMemcpy(CI);
+ case Intrinsic::objectsize: {
+ // If we don't know by now, we're never going to know.
+ const ConstantInt *Min = cast<ConstantInt>(CI.getArgOperand(1));
+
+ MIRBuilder.buildConstant(getOrCreateVReg(CI), Min->isZero() ? -1ULL : 0);
+ return true;
+ }
}
LLT Ty{*CI.getOperand(0)->getType(), *DL};