Rewriter for DIExpressionAttr. More...

#include "mlir/Dialect/LLVMIR/Transforms/DIExpressionRewriter.h"

Classes
class	ExprRewritePattern

Public Types
using	OperatorT = LLVM::DIExpressionElemAttr

Public Member Functions
void	addPattern (std::unique_ptr< ExprRewritePattern > pattern)
	Register a rewrite pattern with the rewriter. More...

LLVM::DIExpressionAttr	simplify (LLVM::DIExpressionAttr expr, std::optional< uint64_t > maxNumRewrites={}) const
	Simplify a DIExpression according to all the patterns registered. More...

Detailed Description

Rewriter for DIExpressionAttr.

Users of this rewriter register their own rewrite patterns. Each pattern matches on a contiguous range of LLVM DIExpressionElemAttrs, and can be used to rewrite it into a new range of DIExpressionElemAttrs of any length.

Definition at line 27 of file DIExpressionRewriter.h.

Member Typedef Documentation

◆ OperatorT

using mlir::LLVM::DIExpressionRewriter::OperatorT = LLVM::DIExpressionElemAttr

Definition at line 29 of file DIExpressionRewriter.h.

Member Function Documentation

◆ addPattern()

void DIExpressionRewriter::addPattern ( std::unique_ptr< ExprRewritePattern > pattern )

Register a rewrite pattern with the rewriter.

Rewrite patterns are attempted in the order of registration.

Definition at line 22 of file DIExpressionRewriter.cpp.

Referenced by mlir::LLVM::legalizeDIExpressionsRecursively().

◆ simplify()

DIExpressionAttr DIExpressionRewriter::simplify	(	LLVM::DIExpressionAttr	expr,
		std::optional< uint64_t >	maxNumRewrites = `{}`
	)		const

Simplify a DIExpression according to all the patterns registered.

An optional maxNumRewrites can be passed to limit the number of rewrites that gets applied.

Definition at line 28 of file DIExpressionRewriter.cpp.

References mlir::get().

Referenced by mlir::LLVM::legalizeDIExpressionsRecursively().

The documentation for this class was generated from the following files:

include/mlir/Dialect/LLVMIR/Transforms/DIExpressionRewriter.h
lib/Dialect/LLVMIR/Transforms/DIExpressionRewriter.cpp

Classes