averello/swift-mirror
1
0
Fork 0
mirror of https://github.com/apple/swift.git synced 2025-12-14 20:36:38 +01:00
Code Issues Packages Projects Releases Wiki Activity

Debug Info: Fix a backend crash by removing obsolete linetable heuristics.

Browse Source 
Recent versions of LLDB can deal with line 0 locations much better and
due to a subtle bug in the heuristic instructions immediately following
the prologue could end up without debug locations which can cause serious
problems for the LLVM inliner when constructing inline debug scope info.

<rdar://problem/24394944>
This commit is contained in:
Adrian Prantl
2016-02-01 13:05:40 -08:00
parent f73626eb28
commit 59226f383d
5 changed files with 31 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
test/DebugInfo/any.swift
View File

@@ -4,8 +4,8 @@ func markUsed<T>(t: T) {}
func main() {
// CHECK: call void @llvm.dbg.declare(metadata %"protocol<>"* {{.*}}, metadata ![[S:.*]], metadata !{{[0-9]+}}), !dbg ![[DBG:.*]]
// CHECK: ![[S]] = !DILocalVariable(name: "s", {{.*}}line: [[@LINE+3]]
// CHECK: ![[SCOPE:.*]] = distinct !DILexicalBlock({{.*}}line: 5, column: 13)
// CHECK: ![[S]] = !DILocalVariable(name: "s", {{.*}}line: [[@LINE+2]]
// CHECK: ![[DBG]] = !DILocation(line: [[@LINE+1]], column: 7, scope: ![[SCOPE]])
var s: Any = "hello world"
var n: Any = 12