Make dense maps keyed on physical registers smallerusing
MRegisterInfo::getNumRegs() instead of
MRegisterInfo::FirstVirtualRegister.
Also use MRegisterInfo::is{Physical,Virtual}Register where
appropriate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11477 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/PeepholeOptimizer.cpp b/lib/Target/X86/PeepholeOptimizer.cpp
index 0c159e1..42c985d 100644
--- a/lib/Target/X86/PeepholeOptimizer.cpp
+++ b/lib/Target/X86/PeepholeOptimizer.cpp
@@ -164,7 +164,7 @@
// getDefinition - Return the machine instruction that defines the specified
// SSA virtual register.
MachineInstr *getDefinition(unsigned Reg) {
- assert(Reg >= MRegisterInfo::FirstVirtualRegister &&
+ assert(MRegisterInfo::isVirtualRegister(Reg) &&
"use-def chains only exist for SSA registers!");
assert(Reg - MRegisterInfo::FirstVirtualRegister < DefiningInst.size() &&
"Unknown register number!");