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A function for loop vectorization illegality reporting has been introduced: void LoopVectorizationLegality::reportVectorizationFailure( const StringRef DebugMsg, const StringRef OREMsg, const StringRef ORETag, Instruction * const I) const; The function prints a debug message when the debug for the compilation unit is enabled as well as invokes the optimization report emitter to generate a message with a specified tag. The function doesn't cover any complicated logic when a custom lambda should be passed to the emitter, only generating a message with a tag is supported. The function always prints the instruction `I` after the debug message whenever the instruction is specified, otherwise the debug message ends with a dot: 'LV: Not vectorizing: Disabled/already vectorized.' Patch by Pavel Samolysov <samolisov@gmail.com> llvm-svn: 362736 |
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