blob: bc1a5b13401d32e4f0f4beb10c4f53bc4395c6cd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
//===-- DebugLoc.cpp ------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Implementation for DebugScopeTracker.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/DebugLoc.h"
#include "llvm/CodeGen/MachineFunction.h"
using namespace llvm;
/// EnterDebugScope - Start a new debug scope. ScopeGV can be a DISubprogram
/// or a DIBlock.
void DebugScopeTracker::EnterDebugScope(GlobalVariable *ScopeGV,
MachineFunction &MF) {
assert(ScopeGV && "GlobalVariable for scope is null!");
CurScope = MF.CreateDebugScope(ScopeGV, CurScope);
}
/// ExitDebugScope - "Pop" a DISubprogram or a DIBlock.
void DebugScopeTracker::ExitDebugScope(GlobalVariable *ScopeGV,
MachineFunction &MF) {
assert(ScopeGV && "GlobalVariable for scope is null!");
assert(!CurScope.isInvalid() && "Mismatched region.end ?");
// We may have skipped a region.end because it was in an unreachable block.
// Go up the scope chain until we reach the scope that ScopeGV points to.
DebugScopeInfo DSI;
do {
DSI = MF.getDebugScopeInfo(CurScope);
CurScope = DSI.Parent;
} while (!DSI.Parent.isInvalid() && DSI.GV != ScopeGV);
}
|
