1 ; RUN: opt -S -passes=jump-threading < %s | FileCheck %s
3 ; @process_block_branch checks that JumpThreading's processBlock() propagates
4 ; the debug location to the new branch instruction.
6 ; @process_threadable_edges_branch checks that JumpThreading's processThreadableEdges()
7 ; propagates the debug location to the new branch instruction.
9 define i32 @process_block_branch(i32 %action) #0 !dbg !5 {
10 ; CHECK-LABEL: define i32 @process_block_branch(
12 ; CHECK-NEXT: br label %for.cond, !dbg [[DBG10:![0-9]+]]
15 switch i32 %action, label %lor.rhs [
20 if.then: ; preds = %for.cond, %lor.end, %entry
21 ret i32 undef, !dbg !9
23 lor.rhs: ; preds = %entry
24 br label %lor.end, !dbg !10
26 lor.end: ; preds = %lor.rhs, %entry
27 %cmp103 = xor i1 undef, undef, !dbg !11
28 br i1 %cmp103, label %for.cond, label %if.then, !dbg !12
30 for.cond: ; preds = %for.body, %lor.end
31 br i1 undef, label %if.then, label %for.body, !dbg !13
33 for.body: ; preds = %for.cond
34 br label %for.cond, !dbg !14
37 define void @process_threadable_edges_branch(i32 %value) #0 !dbg !15 {
38 ; CHECK-LABEL: define void @process_threadable_edges_branch(
40 ; CHECK: br label %L2, !dbg [[DBG17:![0-9]+]]
43 %cmp = icmp eq i32 %value, 32, !dbg !16
44 %add = add i32 %value, 64, !dbg !17
45 br i1 %cmp, label %L0, label %L2, !dbg !18
48 %0 = call i32 @f2(), !dbg !19
49 %1 = call i32 @f2(), !dbg !20
50 switch i32 %add, label %L3 [
56 call void @f3(), !dbg !22
59 L2: ; preds = %L0, %entry
60 call void @f4(i32 %add), !dbg !24
64 call void @f3(), !dbg !26
76 attributes #0 = { nounwind }
79 !llvm.debugify = !{!2, !3}
80 !llvm.module.flags = !{!4}
83 ; CHECK: [[DBG10]] = !DILocation(line: 6,
84 ; CHECK: [[DBG17]] = !DILocation(line: 13,
87 !0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
88 !1 = !DIFile(filename: "temp.ll", directory: "/")
91 !4 = !{i32 2, !"Debug Info Version", i32 3}
92 !5 = distinct !DISubprogram(name: "process_block_branch", linkageName: "process_block_branch", scope: null, file: !1, line: 1, type: !6, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
93 !6 = !DISubroutineType(types: !7)
95 !8 = !DILocation(line: 1, column: 1, scope: !5)
96 !9 = !DILocation(line: 2, column: 1, scope: !5)
97 !10 = !DILocation(line: 3, column: 1, scope: !5)
98 !11 = !DILocation(line: 4, column: 1, scope: !5)
99 !12 = !DILocation(line: 5, column: 1, scope: !5)
100 !13 = !DILocation(line: 6, column: 1, scope: !5)
101 !14 = !DILocation(line: 7, column: 1, scope: !5)
102 !15 = distinct !DISubprogram(name: "process_threadable_edges_branch", linkageName: "process_threadable_edges_branch", scope: null, file: !1, line: 8, type: !6, scopeLine: 8, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0)
103 !16 = !DILocation(line: 8, column: 1, scope: !15)
104 !17 = !DILocation(line: 9, column: 1, scope: !15)
105 !18 = !DILocation(line: 10, column: 1, scope: !15)
106 !19 = !DILocation(line: 11, column: 1, scope: !15)
107 !20 = !DILocation(line: 12, column: 1, scope: !15)
108 !21 = !DILocation(line: 13, column: 1, scope: !15)
109 !22 = !DILocation(line: 14, column: 1, scope: !15)
110 !23 = !DILocation(line: 15, column: 1, scope: !15)
111 !24 = !DILocation(line: 16, column: 1, scope: !15)
112 !25 = !DILocation(line: 17, column: 1, scope: !15)
113 !26 = !DILocation(line: 18, column: 1, scope: !15)
114 !27 = !DILocation(line: 19, column: 1, scope: !15)