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Assert that the offset of a DBG_VALUE is always 0. (NFC) 

llvm-svn: 309834
This commit is contained in:
Adrian Prantl 2017-08-02 17:19:13 +00:00
parent 7a2274aaed
commit bd6d291c59
2 changed files with 8 additions and 4 deletions
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6
llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
View File

@ -481,9 +481,11 @@ DIE *DwarfCompileUnit::constructVariableDIEImpl(const DbgVariable &DV,
if (const MachineInstr *DVInsn = DV.getMInsn()) {
assert(DVInsn->getNumOperands() == 4);
if (DVInsn->getOperand(0).isReg()) {
const MachineOperand RegOp = DVInsn->getOperand(0);
auto RegOp = DVInsn->getOperand(0);
auto Op1 = DVInsn->getOperand(1);
// If the second operand is an immediate, this is an indirect value.
MachineLocation Location(RegOp.getReg(), DVInsn->getOperand(1).isImm());
assert((!Op1.isImm() || (Op1.getImm() == 0)) && "unexpected offset");
MachineLocation Location(RegOp.getReg(), Op1.isImm());
addVariableAddress(DV, *VariableDie, Location);
} else if (DVInsn->getOperand(0).isImm()) {
// This variable is described by a single constant.

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

@ -828,12 +828,14 @@ void DwarfDebug::collectVariableInfoFromMFTable(
// Get .debug_loc entry for the instruction range starting at MI.
static DebugLocEntry::Value getDebugLocValue(const MachineInstr *MI) {
const DIExpression *Expr = MI->getDebugExpression();
assert(MI->getNumOperands() == 4);
if (MI->getOperand(0).isReg()) {
auto RegOp = MI->getOperand(0);
auto Op1 = MI->getOperand(1);
// If the second operand is an immediate, this is a
// register-indirect address.
MachineLocation MLoc(MI->getOperand(0).getReg(), MI->getOperand(1).isImm());
assert((!Op1.isImm() || (Op1.getImm() == 0)) && "unexpected offset");
MachineLocation MLoc(RegOp.getReg(), Op1.isImm());
return DebugLocEntry::Value(Expr, MLoc);
}
if (MI->getOperand(0).isImm())