[llvm] r280272 - [ResetMachineFunction] Emit the diagnostic isel fallback when asked.
Quentin Colombet via llvm-commits
llvm-commits at lists.llvm.org
Wed Aug 31 11:43:01 PDT 2016
Author: qcolombet
Date: Wed Aug 31 13:43:01 2016
New Revision: 280272
URL: http://llvm.org/viewvc/llvm-project?rev=280272&view=rev
Log:
[ResetMachineFunction] Emit the diagnostic isel fallback when asked.
This pass is now able to report when the function is being reset.
Modified:
llvm/trunk/include/llvm/CodeGen/Passes.h
llvm/trunk/lib/CodeGen/ResetMachineFunctionPass.cpp
Modified: llvm/trunk/include/llvm/CodeGen/Passes.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/Passes.h?rev=280272&r1=280271&r2=280272&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/Passes.h (original)
+++ llvm/trunk/include/llvm/CodeGen/Passes.h Wed Aug 31 13:43:01 2016
@@ -53,7 +53,11 @@ namespace llvm {
/// using the MIR serialization format.
MachineFunctionPass *createPrintMIRPass(raw_ostream &OS);
- MachineFunctionPass *createResetMachineFunctionPass();
+ /// This pass resets a MachineFunction when it has the FailedISel property
+ /// as if it was just created.
+ /// If EmitFallbackDiag is true, the pass will emit a
+ /// DiagnosticInfoISelFallback for every MachineFunction it resets.
+ MachineFunctionPass *createResetMachineFunctionPass(bool EmitFallbackDiag);
/// createCodeGenPreparePass - Transform the code to expose more pattern
/// matching during instruction selection.
Modified: llvm/trunk/lib/CodeGen/ResetMachineFunctionPass.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/ResetMachineFunctionPass.cpp?rev=280272&r1=280271&r2=280272&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/ResetMachineFunctionPass.cpp (original)
+++ llvm/trunk/lib/CodeGen/ResetMachineFunctionPass.cpp Wed Aug 31 13:43:01 2016
@@ -13,6 +13,7 @@
#include "llvm/CodeGen/Passes.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
+#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/Support/Debug.h"
using namespace llvm;
@@ -20,11 +21,14 @@ using namespace llvm;
namespace {
class ResetMachineFunction : public MachineFunctionPass {
+ /// Tells whether or not this pass should emit a fallback
+ /// diagnostic when it resets a function.
+ bool EmitFallbackDiag;
+
public:
static char ID; // Pass identification, replacement for typeid
- ResetMachineFunction() :
- MachineFunctionPass(ID) {
- }
+ ResetMachineFunction(bool EmitFallbackDiag = false)
+ : MachineFunctionPass(ID), EmitFallbackDiag(EmitFallbackDiag) {}
const char *getPassName() const override {
return "ResetMachineFunction";
@@ -35,6 +39,11 @@ namespace {
MachineFunctionProperties::Property::FailedISel)) {
DEBUG(dbgs() << "Reseting: " << MF.getName() << '\n');
MF.reset();
+ if (EmitFallbackDiag) {
+ const Function &F = *MF.getFunction();
+ DiagnosticInfoISelFallback DiagFallback(F);
+ F.getContext().diagnose(DiagFallback);
+ }
return true;
}
return false;
@@ -48,6 +57,6 @@ INITIALIZE_PASS(ResetMachineFunction, DE
"reset machine function if ISel failed", false, false)
MachineFunctionPass *
-llvm::createResetMachineFunctionPass() {
- return new ResetMachineFunction();
+llvm::createResetMachineFunctionPass(bool EmitFallbackDiag = false) {
+ return new ResetMachineFunction(EmitFallbackDiag);
}
More information about the llvm-commits
mailing list