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Remove unreachable code. (NFC) 

MachineLocation::getOffset() always returns 0.

rdar://problem/33580047

llvm-svn: 309823
This commit is contained in:
Adrian Prantl 2017-08-02 15:22:17 +00:00
parent 188053af5e
commit 2049c0d734
4 changed files with 5 additions and 26 deletions
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2
llvm/lib/CodeGen/AsmPrinter/DebugLocEntry.h
View File

@ -81,7 +81,7 @@ public:
if (isLocation()) {
llvm::dbgs() << "Loc = { reg=" << Loc.getReg() << " ";
if (Loc.isIndirect())
llvm::dbgs() << '+' << Loc.getOffset();
llvm::dbgs() << "+0";
llvm::dbgs() << "} ";
}
else if (isConstantInt())

15
llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
View File

@ -799,12 +799,7 @@ void DwarfCompileUnit::addAddress(DIE &Die, dwarf::Attribute Attribute,
if (Location.isIndirect())
DwarfExpr.setMemoryLocationKind();
SmallVector<uint64_t, 8> Ops;
if (Location.isIndirect() && Location.getOffset()) {
Ops.push_back(dwarf::DW_OP_plus_uconst);
Ops.push_back(Location.getOffset());
}
DIExpressionCursor Cursor(Ops);
DIExpressionCursor Cursor({});
const TargetRegisterInfo &TRI = *Asm->MF->getSubtarget().getRegisterInfo();
if (!DwarfExpr.addMachineRegExpression(TRI, Cursor, Location.getReg()))
return;
@ -828,13 +823,7 @@ void DwarfCompileUnit::addComplexAddress(const DbgVariable &DV, DIE &Die,
if (Location.isIndirect())
DwarfExpr.setMemoryLocationKind();
SmallVector<uint64_t, 8> Ops;
if (Location.isIndirect() && Location.getOffset()) {
Ops.push_back(dwarf::DW_OP_plus_uconst);
Ops.push_back(Location.getOffset());
}
Ops.append(DIExpr->elements_begin(), DIExpr->elements_end());
DIExpressionCursor Cursor(Ops);
DIExpressionCursor Cursor(DIExpr);
const TargetRegisterInfo &TRI = *Asm->MF->getSubtarget().getRegisterInfo();
if (!DwarfExpr.addMachineRegExpression(TRI, Cursor, Location.getReg()))
return;

8
llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -1578,13 +1578,7 @@ static void emitDebugLocValue(const AsmPrinter &AP, const DIBasicType *BT,
MachineLocation Location = Value.getLoc();
if (Location.isIndirect())
DwarfExpr.setMemoryLocationKind();
SmallVector<uint64_t, 8> Ops;
if (Location.isIndirect() && Location.getOffset()) {
Ops.push_back(dwarf::DW_OP_plus_uconst);
Ops.push_back(Location.getOffset());
}
Ops.append(DIExpr->elements_begin(), DIExpr->elements_end());
DIExpressionCursor Cursor(Ops);
DIExpressionCursor Cursor(DIExpr);
const TargetRegisterInfo &TRI = *AP.MF->getSubtarget().getRegisterInfo();
if (!DwarfExpr.addMachineRegExpression(TRI, Cursor, Location.getReg()))
return;

6
llvm/lib/CodeGen/AsmPrinter/DwarfUnit.cpp
View File

@ -473,11 +473,7 @@ void DwarfUnit::addBlockByrefAddress(const DbgVariable &DV, DIE &Die,
if (Location.isIndirect())
DwarfExpr.setMemoryLocationKind();
SmallVector<uint64_t, 9> Ops;
if (Location.isIndirect() && Location.getOffset()) {
Ops.push_back(dwarf::DW_OP_plus_uconst);
Ops.push_back(Location.getOffset());
}
SmallVector<uint64_t, 6> Ops;
// If we started with a pointer to the __Block_byref... struct, then
// the first thing we need to do is dereference the pointer (DW_OP_deref).
if (isPointer)