Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/test/Transforms/AddDiscriminators/dbg-declare-discriminator.ll

@@ -0,0 +1,33 @@
+; RUN: opt -S -add-discriminators < %s | FileCheck %s
+; RUN: opt -S -passes=add-discriminators < %s | FileCheck %s
+
+declare void @llvm.dbg.declare(metadata, metadata, metadata)
+
+; This checks whether the add-discriminators pass producess valid metadata on
+; llvm.dbg.declare instructions
+;
+; CHECK-LABEL: @test_valid_metadata
+define void @test_valid_metadata() {
+  %a = alloca i8
+  call void @llvm.dbg.declare(metadata i8* %a, metadata !2, metadata !5), !dbg !6
+  %b = alloca i8
+  call void @llvm.dbg.declare(metadata i8* %b, metadata !9, metadata !5), !dbg !11
+  ret void
+}
+
+!llvm.module.flags = !{!0, !1}
+!llvm.dbg.cu = !{!12}
+
+!0 = !{i32 2, !"Dwarf Version", i32 4}
+!1 = !{i32 2, !"Debug Info Version", i32 3}
+!2 = !DILocalVariable(scope: !3)
+!3 = distinct !DISubprogram(scope: null, file: !4, isLocal: false, isDefinition: true, isOptimized: false, unit: !12)
+!4 = !DIFile(filename: "a.cpp", directory: "/tmp")
+!5 = !DIExpression()
+!6 = !DILocation(line: 0, scope: !3, inlinedAt: !7)
+!7 = distinct !DILocation(line: 0, scope: !8)
+!8 = distinct !DISubprogram(linkageName: "test_valid_metadata", scope: null, isLocal: false, isDefinition: true, isOptimized: false, unit: !12)
+!9 = !DILocalVariable(scope: !10)
+!10 = distinct !DISubprogram(scope: null, file: !4, isLocal: false, isDefinition: true, isOptimized: false, unit: !12)
+!11 = !DILocation(line: 0, scope: !10)
+!12 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5 ", isOptimized: false, emissionKind: FullDebug, file: !4)