Imported Upstream version 5.18.0.205

Former-commit-id: 7f59f7e792705db773f1caecdaa823092f4e2927

external/llvm/test/Verifier/metadata-function-dbg.ll

@@ -0,0 +1,37 @@
+; RUN: llvm-as %s -disable-output 2>&1 | FileCheck %s
+
+; CHECK:      function declaration may not have a !dbg attachment
+declare !dbg !4 void @f1()
+
+; CHECK:      function must have a single !dbg attachment
+define void @f2() !dbg !4 !dbg !4 {
+  unreachable
+}
+
+; CHECK:      DISubprogram attached to more than one function
+define void @f3() !dbg !4 {
+  unreachable
+}
+
+; CHECK:      DISubprogram attached to more than one function
+define void @f4() !dbg !4 {
+  unreachable
+}
+
+; CHECK-NOT:  !dbg
+; CHECK:      function !dbg attachment must be a subprogram
+; CHECK-NEXT: void ()* @bar
+; CHECK-NEXT: !{{[0-9]+}} = !{}
+define void @bar() !dbg !3 {
+  unreachable
+}
+
+; CHECK: warning: ignoring invalid debug info
+!llvm.module.flags = !{!0}
+!0 = !{i32 2, !"Debug Info Version", i32 3}
+
+!llvm.dbg.cu = !{!1}
+!1 = distinct !DICompileUnit(language: DW_LANG_C99, file: !2)
+!2 = !DIFile(filename: "t.c", directory: "/path/to/dir")
+!3 = !{}
+!4 = distinct !DISubprogram(name: "foo", scope: !1, file: !2, unit: !1)