[TargetPassConfig] Add a hook to tell whether GlobalISel should warm on fallback.
Thanks to this patch, we know have a way to easly see if GlobalISel
failed.
llvm-svn: 280273
diff --git a/llvm/lib/CodeGen/LLVMTargetMachine.cpp b/llvm/lib/CodeGen/LLVMTargetMachine.cpp
index e11eb01..c094ab8 100644
--- a/llvm/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/llvm/lib/CodeGen/LLVMTargetMachine.cpp
@@ -169,7 +169,8 @@
return nullptr;
// Pass to reset the MachineFunction if the ISel failed.
- PM.add(createResetMachineFunctionPass());
+ PM.add(createResetMachineFunctionPass(
+ PassConfig->reportDiagnosticWhenGlobalISelFallback()));
// Provide a fallback path when we do not want to abort on
// not-yet-supported input.