GlobalISel: support trivial inlineasm calls.
They're used for nefarious purposes by ObjC.
llvm-svn: 297422
diff --git a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
index e170b76..b2ab3c1 100644
--- a/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
@@ -715,13 +715,32 @@
return false;
}
+bool IRTranslator::translateInlineAsm(const CallInst &CI,
+ MachineIRBuilder &MIRBuilder) {
+ const InlineAsm &IA = cast<InlineAsm>(*CI.getCalledValue());
+ if (!IA.getConstraintString().empty())
+ return false;
+
+ unsigned ExtraInfo = 0;
+ if (IA.hasSideEffects())
+ ExtraInfo |= InlineAsm::Extra_HasSideEffects;
+ if (IA.getDialect() == InlineAsm::AD_Intel)
+ ExtraInfo |= InlineAsm::Extra_AsmDialect;
+
+ MIRBuilder.buildInstr(TargetOpcode::INLINEASM)
+ .addExternalSymbol(IA.getAsmString().c_str())
+ .addImm(ExtraInfo);
+
+ return true;
+}
+
bool IRTranslator::translateCall(const User &U, MachineIRBuilder &MIRBuilder) {
const CallInst &CI = cast<CallInst>(U);
auto TII = MF->getTarget().getIntrinsicInfo();
const Function *F = CI.getCalledFunction();
if (CI.isInlineAsm())
- return false;
+ return translateInlineAsm(CI, MIRBuilder);
if (!F || !F->isIntrinsic()) {
unsigned Res = CI.getType()->isVoidTy() ? 0 : getOrCreateVReg(CI);