1 files changed, 124 insertions, 0 deletions
diff --git a/test/DebugInfo/strip-loop-metadata.ll b/test/DebugInfo/strip-loop-metadata.ll
new file mode 100644
index 0000000000000..e0d8cdfaf4695
--- /dev/null
+++ b/test/DebugInfo/strip-loop-metadata.ll
@@ -0,0 +1,124 @@
+; RUN: opt -S -strip-debug < %s | FileCheck %s
+
+target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.12.0"
+
+; CHECK-LABEL: _Z5test1v
+; CHECK-NOT: br {{.*}} !llvm.loop
+define void @_Z5test1v() !dbg !7 {
+entry:
+  br label %while.body, !dbg !9
+
+while.body:
+  call void @_Z3barv(), !dbg !10
+  br label %while.body, !dbg !11, !llvm.loop !13
+
+return:
+  ret void, !dbg !14
+}
+
+declare void @_Z3barv()
+declare i1 @_Z3bazv()
+
+; CHECK-LABEL: _Z5test2v
+; CHECK: br {{.*}} !llvm.loop [[LOOP:![0-9]+]]
+define void @_Z5test2v() !dbg !15 {
+entry:
+  br label %while.body, !dbg !16
+
+while.body:
+  call void @_Z3barv(), !dbg !17
+  br label %while.body, !dbg !18, !llvm.loop !19
+
+return:
+  ret void, !dbg !21
+}
+
+; CHECK-LABEL: _Z5test3v
+define void @_Z5test3v() !dbg !22 {
+entry:
+  br label %while.body, !dbg !23
+
+while.body:
+  %c = call i1 @_Z3bazv()
+  br i1 %c, label %if, label %then
+
+if:
+  call void @_Z3barv(), !dbg !24
+; CHECK: br {{.*}} !llvm.loop [[LOOP2:![0-9]+]]
+  br label %while.body, !dbg !25, !llvm.loop !26
+
+then:
+; CHECK: br {{.*}} !llvm.loop [[LOOP2]]
+  br label %while.body, !dbg !25, !llvm.loop !26
+
+return:
+  ret void, !dbg !28
+}
+
+; CHECK-LABEL: _Z5test4v
+; CHECK-NOT: br {{.*}} !llvm.loop
+define void @_Z5test4v() !dbg !30 {
+entry:
+  br label %while.body, !dbg !31
+
+while.body:
+  call void @_Z3barv(), !dbg !32
+  br label %while.body, !dbg !33, !llvm.loop !34
+
+return:
+  ret void, !dbg !36
+}
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!3, !4, !5}
+!llvm.ident = !{!6}
+
+!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 4.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
+!1 = !DIFile(filename: "test.cpp", directory: "/tmp")
+!2 = !{}
+!3 = !{i32 2, !"Dwarf Version", i32 4}
+!4 = !{i32 2, !"Debug Info Version", i32 3}
+!5 = !{i32 1, !"PIC Level", i32 2}
+!6 = !{!"clang version 4.0.0"}
+!7 = distinct !DISubprogram(name: "test1", scope: !1, file: !1, line: 3, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
+!8 = !DISubroutineType(types: !2)
+!9 = !DILocation(line: 4, column: 3, scope: !7)
+!10 = !DILocation(line: 5, column: 5, scope: !7)
+!11 = !DILocation(line: 4, column: 3, scope: !12)
+!12 = !DILexicalBlockFile(scope: !7, file: !1, discriminator: 1)
+!13 = distinct !{!13, !9}
+!14 = !DILocation(line: 6, column: 1, scope: !7)
+!15 = distinct !DISubprogram(name: "test2", scope: !1, file: !1, line: 8, type: !8, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
+!16 = !DILocation(line: 8, column: 14, scope: !15)
+!17 = !DILocation(line: 11, column: 5, scope: !15)
+!18 = !DILocation(line: 10, column: 3, scope: !15)
+!19 = distinct !{!19, !16, !20}
+!20 = !{!"llvm.loop.unroll.enable"}
+!21 = !DILocation(line: 12, column: 1, scope: !15)
+!22 = distinct !DISubprogram(name: "test3", scope: !1, file: !1, line: 8, type: !8, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
+!23 = !DILocation(line: 8, column: 14, scope: !22)
+!24 = !DILocation(line: 11, column: 5, scope: !22)
+!25 = !DILocation(line: 10, column: 3, scope: !22)
+!26 = distinct !{!26, !23, !29, !27}
+!27 = !{!"llvm.loop.unroll.enable"}
+!28 = !DILocation(line: 12, column: 1, scope: !22)
+!29 = !DILocation(line: 12, column: 1, scope: !22)
+!30 = distinct !DISubprogram(name: "test4", scope: !1, file: !1, line: 8, type: !8, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
+!31 = !DILocation(line: 8, column: 14, scope: !30)
+!32 = !DILocation(line: 11, column: 5, scope: !30)
+!33 = !DILocation(line: 10, column: 3, scope: !30)
+!34 = distinct !{!34, !31, !35}
+!35 = !DILocation(line: 12, column: 1, scope: !30)
+!36 = !DILocation(line: 12, column: 1, scope: !30)
+
+; CHECK-NOT: !DICompileUnit
+; CHECK-NOT: !DIFile
+; CHECK-NOT: !DISubprogram
+; CHECK-NOT: !DISubroutineType
+; CHECK-NOT: !DILocation
+; CHECK-NOT: !DILexicalBlockFile
+; CHECK: [[LOOP]] = distinct !{[[LOOP]], [[LOOP_UNROLL:![0-9]+]]}
+; CHECK-NEXT: [[LOOP_UNROLL]] = !{!"llvm.loop.unroll.enable"}
+; CHECK: [[LOOP2]] = distinct !{[[LOOP2]], [[LOOP_UNROLL]]}
+; CHECK-NOT: !DILocation