6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-11-01 00:17:01 +00:00
Code Issues Projects Releases Wiki Activity

Add MachineRegisterInfo::hasOneUse and hasOneNonDBGUse.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97663 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2010-03-03 21:18:38 +00:00
parent 14c85cbf54
commit 1423c70b8f
3 changed files with 24 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
lib/CodeGen/MachineRegisterInfo.cpp
View File

@@ -116,6 +116,19 @@ MachineInstr *MachineRegisterInfo::getVRegDef(unsigned Reg) const {
return 0;
}
bool MachineRegisterInfo::hasOneUse(unsigned RegNo) const {
use_iterator UI = use_begin(RegNo);
if (UI == use_end())
return false;
return ++UI == use_end();
}
bool MachineRegisterInfo::hasOneNonDBGUse(unsigned RegNo) const {
use_nodbg_iterator UI = use_nodbg_begin(RegNo);
if (UI == use_nodbg_end())
return false;
return ++UI == use_nodbg_end();
}
#ifndef NDEBUG
void MachineRegisterInfo::dumpUses(unsigned Reg) const {