LLVM  6.0.0svn
Macros
WebAssemblyReplacePhysRegs.cpp File Reference

This file implements a pass that replaces physical registers with virtual registers. More...

#include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
#include "WebAssembly.h"
#include "WebAssemblyMachineFunctionInfo.h"
#include "WebAssemblySubtarget.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/Passes.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
Include dependency graph for WebAssemblyReplacePhysRegs.cpp:

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Macros

#define DEBUG_TYPE   "wasm-replace-phys-regs"
 

Detailed Description

This file implements a pass that replaces physical registers with virtual registers.

LLVM expects certain physical registers, such as a stack pointer. However, WebAssembly doesn't actually have such physical registers. This pass is run once LLVM no longer needs these registers, and replaces them with virtual registers, so they can participate in register stackifying and coloring in the normal way.

Definition in file WebAssemblyReplacePhysRegs.cpp.

Macro Definition Documentation

◆ DEBUG_TYPE

#define DEBUG_TYPE   "wasm-replace-phys-regs"

Definition at line 33 of file WebAssemblyReplacePhysRegs.cpp.