1 files changed, 74 insertions, 0 deletions
diff --git a/llvm/test/DebugInfo/WebAssembly/dbg-value-ti.ll b/llvm/test/DebugInfo/WebAssembly/dbg-value-ti.ll
new file mode 100644
index 00000000000..a99ca2d43cb
--- /dev/null
+++ b/llvm/test/DebugInfo/WebAssembly/dbg-value-ti.ll
@@ -0,0 +1,74 @@
+; RUN: llc < %s -stop-after=wasm-explicit-locals | FileCheck %s
+
+; Checks if DBG_VALUEs that correspond to new `local.{tee,set}` are
+; using `target-index(wasm-local-start)` operands.
+
+target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
+target triple = "wasm32-unknown-unknown-wasm"
+
+define hidden i32 @fib(i32 %n) local_unnamed_addr #0 !dbg !7 {
+; CHECK: body:
+entry:
+
+; CHECK: %[[REG1:.*]]:i32 = CONST_I32 1,
+; CHECK: LOCAL_SET_I32 [[LOOP_LOCAL:.*]], %[[REG1]],
+; CHECK: DBG_VALUE 1, $noreg,
+  call void @llvm.dbg.value(metadata i32 1, metadata !16, metadata !DIExpression()), !dbg !19
+  %cmp8 = icmp sgt i32 %n, 0, !dbg !21
+  br i1 %cmp8, label %for.body, label %for.end, !dbg !24
+
+for.body:                                         ; preds = %entry, %for.body
+  %b.011 = phi i32 [ %add, %for.body ], [ 1, %entry ]
+  %a.010 = phi i32 [ %b.011, %for.body ], [ 0, %entry ]
+  %i.09 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
+
+; CHECK: %[[REG2:.*]]:i32 = LOCAL_GET_I32 [[LOOP_LOCAL]],
+; CHECK: %[[REG3:.*]]:i32 = LOCAL_TEE_I32 [[TMP_LOCAL:.*]], %[[REG2]],
+; CHECK: DBG_VALUE target-index(wasm-local-start) + [[TMP_LOCAL]], $noreg,
+  call void @llvm.dbg.value(metadata i32 %b.011, metadata !16, metadata !DIExpression()), !dbg !19
+
+; CHECK: %[[REG4:.*]]:i32 = nsw ADD_I32
+; CHECK: LOCAL_SET_I32 [[LOOP_LOCAL]], %[[REG4]],
+; CHECK: DBG_VALUE target-index(wasm-local-start) + [[LOOP_LOCAL]], $noreg,
+  %add = add nsw i32 %b.011, %a.010, !dbg !26
+  %inc = add nuw nsw i32 %i.09, 1, !dbg !28
+  call void @llvm.dbg.value(metadata i32 %add, metadata !16, metadata !DIExpression()), !dbg !19
+  %exitcond = icmp eq i32 %inc, %n, !dbg !21
+  br i1 %exitcond, label %for.end, label %for.body, !dbg !24, !llvm.loop !29
+
+for.end:                                          ; preds = %for.body, %entry
+  %b.0.lcssa = phi i32 [ 1, %entry ], [ %add, %for.body ], !dbg !31
+  call void @llvm.dbg.value(metadata i32 %b.0.lcssa, metadata !16, metadata !DIExpression()), !dbg !19
+  ret i32 %b.0.lcssa, !dbg !32
+}
+
+declare void @llvm.dbg.value(metadata, metadata, metadata) #1
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!4}
+!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 8.0.0 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
+!1 = !DIFile(filename: "<unknown>", directory: "")
+!2 = !{}
+!4 = !{i32 2, !"Debug Info Version", i32 3}
+!7 = distinct !DISubprogram(name: "fib", scope: !1, file: !1, line: 1, type: !8, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
+!8 = !DISubroutineType(types: !9)
+!9 = !{!10, !10}
+!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
+!11 = !{!16}
+!16 = !DILocalVariable(name: "b", scope: !7, file: !1, line: 2, type: !10)
+!17 = !DILocation(line: 1, column: 13, scope: !7)
+!18 = !DILocation(line: 2, column: 13, scope: !7)
+!19 = !DILocation(line: 2, column: 20, scope: !7)
+!20 = !DILocation(line: 2, column: 7, scope: !7)
+!21 = !DILocation(line: 3, column: 17, scope: !22)
+!22 = distinct !DILexicalBlock(scope: !23, file: !1, line: 3, column: 3)
+!23 = distinct !DILexicalBlock(scope: !7, file: !1, line: 3, column: 3)
+!24 = !DILocation(line: 3, column: 3, scope: !23)
+!25 = !DILocation(line: 2, column: 10, scope: !7)
+!26 = !DILocation(line: 6, column: 7, scope: !27)
+!27 = distinct !DILexicalBlock(scope: !22, file: !1, line: 3, column: 27)
+!28 = !DILocation(line: 3, column: 23, scope: !22)
+!29 = distinct !{!29, !24, !30}
+!30 = !DILocation(line: 7, column: 3, scope: !23)
+!31 = !DILocation(line: 0, scope: !7)
+!32 = !DILocation(line: 8, column: 3, scope: !7)