Extend late diagnostics to include late test for runtime pointer checks.

This patch moves checking the threshold of runtime pointer checks to the vectorization requirements (late diagnostics) and emits a diagnostic that infroms the user the loop would be vectorized if not for exceeding the pointer-check threshold. Clang will also append the options that can be used to allow vectorization.

llvm-svn: 244523

1 files changed, 9 insertions, 0 deletions

diff --git a/llvm/lib/IR/DiagnosticInfo.cpp b/llvm/lib/IR/DiagnosticInfo.cpp
index 07c6714e913..3acef9048cc 100644
--- a/llvm/lib/IR/DiagnosticInfo.cpp
+++ b/llvm/lib/IR/DiagnosticInfo.cpp
@@ -205,6 +205,15 @@ void llvm::emitOptimizationRemarkAnalysisFPCommute(LLVMContext &Ctx,
                                                                  DLoc, Msg));
 }
 
+void llvm::emitOptimizationRemarkAnalysisAliasing(LLVMContext &Ctx,
+                                                  const char *PassName,
+                                                  const Function &Fn,
+                                                  const DebugLoc &DLoc,
+                                                  const Twine &Msg) {
+  Ctx.diagnose(DiagnosticInfoOptimizationRemarkAnalysisAliasing(PassName, Fn,
+                                                                DLoc, Msg));
+}
+
 bool DiagnosticInfoOptimizationFailure::isEnabled() const {
   // Only print warnings.
   return getSeverity() == DS_Warning;