[llvm] r280271 - [DiagnosticInfo] Add a diagnostic class for the fallback of ISel.

[Quentin Colombet via llvm-commits]

Author: qcolombet
Date: Wed Aug 31 13:42:55 2016
New Revision: 280271

URL: http://llvm.org/viewvc/llvm-project?rev=280271&view=rev
Log:
[DiagnosticInfo] Add a diagnostic class for the fallback of ISel.

This will be used to warm when we fallback in GlobalISel.

Modified:
    llvm/trunk/include/llvm/IR/DiagnosticInfo.h
    llvm/trunk/lib/IR/DiagnosticInfo.cpp

Modified: llvm/trunk/include/llvm/IR/DiagnosticInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/DiagnosticInfo.h?rev=280271&r1=280270&r2=280271&view=diff
==============================================================================
--- llvm/trunk/include/llvm/IR/DiagnosticInfo.h (original)
+++ llvm/trunk/include/llvm/IR/DiagnosticInfo.h Wed Aug 31 13:42:55 2016
@@ -54,6 +54,7 @@ enum DiagnosticKind {
   DK_Linker,
   DK_DebugMetadataVersion,
   DK_DebugMetadataInvalid,
+  DK_ISelFallback,
   DK_SampleProfile,
   DK_OptimizationRemark,
   DK_OptimizationRemarkMissed,
@@ -584,6 +585,25 @@ public:
   }
 };
 
+/// Diagnostic information for ISel fallback path.
+class DiagnosticInfoISelFallback : public DiagnosticInfo {
+  /// The function that is concerned by this diagnostic.
+  const Function &Fn;
+
+public:
+  DiagnosticInfoISelFallback(const Function &Fn,
+                             DiagnosticSeverity Severity = DS_Warning)
+      : DiagnosticInfo(DK_ISelFallback, Severity), Fn(Fn) {}
+
+  const Function &getFunction() const { return Fn; }
+
+  void print(DiagnosticPrinter &DP) const override;
+
+  static bool classof(const DiagnosticInfo *DI) {
+    return DI->getKind() == DK_ISelFallback;
+  }
+};
+
 // Create wrappers for C Binding types (see CBindingWrapping.h).
 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(DiagnosticInfo, LLVMDiagnosticInfoRef)
 

Modified: llvm/trunk/lib/IR/DiagnosticInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/DiagnosticInfo.cpp?rev=280271&r1=280270&r2=280271&view=diff
==============================================================================
--- llvm/trunk/lib/IR/DiagnosticInfo.cpp (original)
+++ llvm/trunk/lib/IR/DiagnosticInfo.cpp Wed Aug 31 13:42:55 2016
@@ -262,3 +262,7 @@ void llvm::emitLoopInterleaveWarning(LLV
   Ctx.diagnose(DiagnosticInfoOptimizationFailure(
       Fn, DLoc, Twine("loop not interleaved: " + Msg)));
 }
+
+void DiagnosticInfoISelFallback::print(DiagnosticPrinter &DP) const {
+  DP << "Instruction selection used fallback path for " << getFunction();
+}