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Fix comments in PhysRegTracker and rename isPhysRegAvail to isRegAvail to be consistent with the other two

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11723 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alkis Evlogimenos 2004-02-23 01:25:05 +00:00
parent 2d0a82570a
commit 534f545ef1
2 changed files with 6 additions and 5 deletions
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9
lib/CodeGen/PhysRegTracker.h
View File

@ -1,4 +1,4 @@
//===-- llvm/CodeGen/LiveInterval.h - Live Interval Analysis ----*- C++ -*-===// //===-- llvm/CodeGen/PhysRegTracker.h - Physical Register Tracker -*- C++ -*-=//
// //
// The LLVM Compiler Infrastructure // The LLVM Compiler Infrastructure
// //
@ -8,8 +8,9 @@
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// //
// This file implements a physical register tracker. The tracker // This file implements a physical register tracker. The tracker
// tracks physical register usage through addPhysRegUse and // tracks physical register usage through addRegUse and
// delPhysRegUse functions while abstracting away register aliases. // delRegUse. isRegAvail checks if a physical register is available or
// not taking into consideration register aliases.
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
@ -67,7 +68,7 @@ namespace llvm {
} }
} }
bool isPhysRegAvail(unsigned physReg) const { bool isRegAvail(unsigned physReg) const {
assert(MRegisterInfo::isPhysicalRegister(physReg) && assert(MRegisterInfo::isPhysicalRegister(physReg) &&
"should be physical register!"); "should be physical register!");
return regUse_[physReg] == 0; return regUse_[physReg] == 0;

2
lib/CodeGen/RegAllocLinearScan.cpp
View File

@ -706,7 +706,7 @@ unsigned RA::getFreePhysReg(IntervalPtrs::value_type cur)
for (TargetRegisterClass::iterator i = rc->allocation_order_begin(*mf_); for (TargetRegisterClass::iterator i = rc->allocation_order_begin(*mf_);
i != rc->allocation_order_end(*mf_); ++i) { i != rc->allocation_order_end(*mf_); ++i) {
unsigned reg = *i; unsigned reg = *i;
if (prt_.isPhysRegAvail(reg)) if (prt_.isRegAvail(reg))
return reg; return reg;
} }
return 0; return 0;