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This patch fixes https://bugs.llvm.org/show_bug.cgi?id=32352 It enables…

Authored by vivekvpandya on Sep 15 2017, 1:10 PM.

Description

This patch fixes https://bugs.llvm.org/show_bug.cgi?id=32352 It enables OptimizationRemarkEmitter::allowExtraAnalysis and MachineOptimizationRemarkEmitter::allowExtraAnalysis to return true not only for -fsave-optimization-record but when specific remarks are requested with command line options. The diagnostic handler used to be callback now this patch adds a class DiagnosticHandler. It has virtual method to provide custom diagnostic handler and methods to control which particular remarks are enabled. However LLVM-C API users can still provide callback function for diagnostic handler.

llvm-svn: 313390

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