[DebugInfo] Rename DbgValueHistoryMap::{InstrRange -> Entry}, NFC

Summary:
In an upcoming commit the history map will be changed so that it
contains explicit entries for instructions that clobber preceding debug
values, rather than Begin- End range pairs, so generalize the name to
"Entry".

Also, prefix the iterator variable names in buildLocationList() with
"E". In an upcoming commit the entry will have query functions such as
"isD(e)b(u)gValue", which could at a glance make one confuse it for
iterations over MachineInstrs, so make the iterator names a bit more
distinct to avoid that.

Reviewers: aprantl

Reviewed By: aprantl

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D59939

llvm-svn: 358060

1 files changed, 9 insertions, 9 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
index b91f40de148..75a63df083a 100644
--- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
@@ -1154,13 +1154,13 @@ static bool needsReferenceType(const DbgVariableLocation &Loc) {
 }
 
 void CodeViewDebug::calculateRanges(
-    LocalVariable &Var, const DbgValueHistoryMap::InstrRanges &Ranges) {
+    LocalVariable &Var, const DbgValueHistoryMap::Entries &Entries) {
   const TargetRegisterInfo *TRI = Asm->MF->getSubtarget().getRegisterInfo();
 
   // Calculate the definition ranges.
-  for (auto I = Ranges.begin(), E = Ranges.end(); I != E; ++I) {
-    const auto &Range = *I;
-    const MachineInstr *DVInst = Range.getBegin();
+  for (auto I = Entries.begin(), E = Entries.end(); I != E; ++I) {
+    const auto &Entry = *I;
+    const MachineInstr *DVInst = Entry.getBegin();
     assert(DVInst->isDebugValue() && "Invalid History entry");
     // FIXME: Find a way to represent constant variables, since they are
     // relatively common.
@@ -1187,7 +1187,7 @@ void CodeViewDebug::calculateRanges(
       // Start over using that.
       Var.UseReferenceType = true;
       Var.DefRanges.clear();
-      calculateRanges(Var, Ranges);
+      calculateRanges(Var, Entries);
       return;
     }
 
@@ -1215,8 +1215,8 @@ void CodeViewDebug::calculateRanges(
     }
 
     // Compute the label range.
-    const MCSymbol *Begin = getLabelBeforeInsn(Range.getBegin());
-    const MCSymbol *End = getLabelAfterInsn(Range.getEnd());
+    const MCSymbol *Begin = getLabelBeforeInsn(Entry.getBegin());
+    const MCSymbol *End = getLabelAfterInsn(Entry.getEnd());
     if (!End) {
       // This range is valid until the next overlapping bitpiece. In the
       // common case, ranges will not be bitpieces, so they will overlap.
@@ -1257,7 +1257,7 @@ void CodeViewDebug::collectVariableInfo(const DISubprogram *SP) {
     const DILocation *InlinedAt = IV.second;
 
     // Instruction ranges, specifying where IV is accessible.
-    const auto &Ranges = I.second;
+    const auto &Entries = I.second;
 
     LexicalScope *Scope = nullptr;
     if (InlinedAt)
@@ -1271,7 +1271,7 @@ void CodeViewDebug::collectVariableInfo(const DISubprogram *SP) {
     LocalVariable Var;
     Var.DIVar = DIVar;
 
-    calculateRanges(Var, Ranges);
+    calculateRanges(Var, Entries);
     recordLocalVariable(std::move(Var), Scope);
   }
 }