class StackColoring

Declaration

class StackColoring { /* full declaration omitted */ };

Description

Compute live ranges of allocas. Live ranges are represented as sets of "interesting" instructions, which are defined as instructions that may start or end an alloca's lifetime. These are: * lifetime.start and lifetime.end intrinsics * first instruction of any basic block Interesting instructions are numbered in the depth-first walk of the CFG, and in the program order inside each basic block.

Declared at: llvm/lib/CodeGen/SafeStackColoring.h:37

Method Overview

• public StackColoring(llvm::Function & F, ArrayRef<llvm::AllocaInst *> Allocas)
• public llvm::safestack::StackColoring::LiveRange getFullLiveRange()
• public const llvm::safestack::StackColoring::LiveRange & getLiveRange(llvm::AllocaInst * AI)
• public void removeAllMarkers()
• public void run()

Methods

¶StackColoring(llvm::Function& F,
              ArrayRef<llvm::AllocaInst*> Allocas)

Declared at: llvm/lib/CodeGen/SafeStackColoring.h:118

Parameters

llvm::Function& F

ArrayRef<llvm::AllocaInst*> Allocas

¶llvm::safestack::StackColoring::LiveRange
getFullLiveRange()

Description

Returns a live range that represents an alloca that is live throughout the entire function.

Declared at: llvm/lib/CodeGen/SafeStackColoring.h:131

¶const llvm::safestack::StackColoring::LiveRange&
getLiveRange(llvm::AllocaInst* AI)

Description

Returns a set of "interesting" instructions where the given alloca is live. Not all instructions in a function are interesting: we pick a set that is large enough for LiveRange::Overlaps to be correct.

Declared at: llvm/lib/CodeGen/SafeStackColoring.h:127

Parameters

llvm::AllocaInst* AI

¶void removeAllMarkers()

Declared at: llvm/lib/CodeGen/SafeStackColoring.h:122

¶void run()

Declared at: llvm/lib/CodeGen/SafeStackColoring.h:121