1; RUN: llc < %s -stop-after=wasm-explicit-locals | FileCheck %s
2
3; Checks if DBG_VALUEs that correspond to new `local.{tee,set}` are
4; using `target-index(wasm-local)` operands.
5
6target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
7target triple = "wasm32-unknown-unknown-wasm"
8
9define hidden i32 @fib(i32 %n) local_unnamed_addr #0 !dbg !7 {
10; CHECK: body:
11entry:
12
13; CHECK: %[[REG1:.*]]:i32 = CONST_I32 1,
14; CHECK: LOCAL_SET_I32 [[LOOP_LOCAL:.*]], %[[REG1]],
15; CHECK: DBG_VALUE 1, $noreg,
16  call void @llvm.dbg.value(metadata i32 1, metadata !16, metadata !DIExpression()), !dbg !19
17  %cmp8 = icmp sgt i32 %n, 0, !dbg !21
18  br i1 %cmp8, label %for.body, label %for.end, !dbg !24
19
20for.body:                                         ; preds = %entry, %for.body
21  %b.011 = phi i32 [ %add, %for.body ], [ 1, %entry ]
22  %a.010 = phi i32 [ %b.011, %for.body ], [ 0, %entry ]
23  %i.09 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
24
25; CHECK: %[[REG2:.*]]:i32 = LOCAL_GET_I32 [[LOOP_LOCAL]],
26; CHECK: %[[REG3:.*]]:i32 = LOCAL_TEE_I32 [[TMP_LOCAL:.*]], %[[REG2]],
27; CHECK: DBG_VALUE target-index(wasm-local) + [[TMP_LOCAL]], $noreg,
28  call void @llvm.dbg.value(metadata i32 %b.011, metadata !16, metadata !DIExpression()), !dbg !19
29
30; CHECK: %[[REG4:.*]]:i32 = nsw ADD_I32
31; CHECK: LOCAL_SET_I32 [[LOOP_LOCAL]], %[[REG4]],
32; CHECK: DBG_VALUE target-index(wasm-local) + [[LOOP_LOCAL]], $noreg,
33  %add = add nsw i32 %b.011, %a.010, !dbg !26
34  %inc = add nuw nsw i32 %i.09, 1, !dbg !28
35  call void @llvm.dbg.value(metadata i32 %add, metadata !16, metadata !DIExpression()), !dbg !19
36  %exitcond = icmp eq i32 %inc, %n, !dbg !21
37  br i1 %exitcond, label %for.end, label %for.body, !dbg !24, !llvm.loop !29
38
39for.end:                                          ; preds = %for.body, %entry
40  %b.0.lcssa = phi i32 [ 1, %entry ], [ %add, %for.body ], !dbg !31
41  call void @llvm.dbg.value(metadata i32 %b.0.lcssa, metadata !16, metadata !DIExpression()), !dbg !19
42  ret i32 %b.0.lcssa, !dbg !32
43}
44
45declare void @llvm.dbg.value(metadata, metadata, metadata) #1
46
47!llvm.dbg.cu = !{!0}
48!llvm.module.flags = !{!4}
49!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)
50!1 = !DIFile(filename: "<unknown>", directory: "")
51!2 = !{}
52!4 = !{i32 2, !"Debug Info Version", i32 3}
53!7 = distinct !DISubprogram(name: "fib", scope: !1, file: !1, line: 1, type: !8, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
54!8 = !DISubroutineType(types: !9)
55!9 = !{!10, !10}
56!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
57!11 = !{!16}
58!16 = !DILocalVariable(name: "b", scope: !7, file: !1, line: 2, type: !10)
59!17 = !DILocation(line: 1, column: 13, scope: !7)
60!18 = !DILocation(line: 2, column: 13, scope: !7)
61!19 = !DILocation(line: 2, column: 20, scope: !7)
62!20 = !DILocation(line: 2, column: 7, scope: !7)
63!21 = !DILocation(line: 3, column: 17, scope: !22)
64!22 = distinct !DILexicalBlock(scope: !23, file: !1, line: 3, column: 3)
65!23 = distinct !DILexicalBlock(scope: !7, file: !1, line: 3, column: 3)
66!24 = !DILocation(line: 3, column: 3, scope: !23)
67!25 = !DILocation(line: 2, column: 10, scope: !7)
68!26 = !DILocation(line: 6, column: 7, scope: !27)
69!27 = distinct !DILexicalBlock(scope: !22, file: !1, line: 3, column: 27)
70!28 = !DILocation(line: 3, column: 23, scope: !22)
71!29 = distinct !{!29, !24, !30}
72!30 = !DILocation(line: 7, column: 3, scope: !23)
73!31 = !DILocation(line: 0, scope: !7)
74!32 = !DILocation(line: 8, column: 3, scope: !7)
75