1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
2 ; RUN: opt -disable-output -S -passes=print-ir-similarity < %s 2>&1 | FileCheck %s
4 ; When a debug instruction is the first instruction in a block, when that block
5 ; has not been given a canonical numbering, since debug instructions are not
6 ; counted in similarity matching they must be ignored when creating canonical
7 ; relations from one region to another. This checks that this is enforced.
9 ; CHECK: 2 candidates of length 4. Found in:
10 ; CHECK-NEXT: Function: main, Basic Block: entry
11 ; CHECK-NEXT: Start Instruction: %0 = add i32 1, 4
12 ; CHECK-NEXT: End Instruction: %1 = sub i32 1, 4
13 ; CHECK-NEXT: Function: main, Basic Block: for.body169
14 ; CHECK-NEXT: Start Instruction: %2 = add i32 1, 4
15 ; CHECK-NEXT: End Instruction: %3 = sub i32 1, 4
16 ; CHECK-NEXT: 2 candidates of length 3. Found in:
17 ; CHECK-NEXT: Function: main, Basic Block: entry
18 ; CHECK-NEXT: Start Instruction: br label %for.body169
19 ; CHECK-NEXT: End Instruction: %1 = sub i32 1, 4
20 ; CHECK-NEXT: Function: main, Basic Block: for.body169
21 ; CHECK-NEXT: Start Instruction: br label %for.end122
22 ; CHECK-NEXT: End Instruction: %3 = sub i32 1, 4
23 ; CHECK-NEXT: 2 candidates of length 2. Found in:
24 ; CHECK-NEXT: Function: main, Basic Block: for.end122
25 ; CHECK-NEXT: Start Instruction: store i32 30, ptr undef, align 1
26 ; CHECK-NEXT: End Instruction: %1 = sub i32 1, 4
27 ; CHECK-NEXT: Function: main, Basic Block: for.end246
28 ; CHECK-NEXT: Start Instruction: store i32 0, ptr undef, align 1
29 ; CHECK-NEXT: End Instruction: %3 = sub i32 1, 4
31 source_filename = "irsimilarity_crash.ll"
33 @v_13 = external dso_local global ptr, align 1
35 ; Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn
36 declare void @llvm.dbg.declare(metadata, metadata, metadata) #0
38 define dso_local i16 @main() {
43 for.end122: ; preds = %for.cond108
44 store i32 30, ptr undef, align 1
48 for.body169: ; preds = %for.cond167
52 for.end246: ; preds = %for.cond167
53 call void @llvm.dbg.declare(metadata ptr undef, metadata !1, metadata !DIExpression()), !dbg !11
54 store i32 0, ptr undef, align 1
59 attributes #0 = { nocallback nofree nosync nounwind readnone speculatable willreturn }
62 !llvm.module.flags = !{!0}
64 !0 = !{i32 2, !"Debug Info Version", i32 3}
65 !1 = !DILocalVariable(name: "v_68", scope: !2, file: !3, line: 522, type: !10)
66 !2 = distinct !DILexicalBlock(scope: !4, file: !3, line: 522, column: 9)
67 !3 = !DIFile(filename: "41097217.c", directory: "rt.outdir")
68 !4 = distinct !DISubprogram(name: "main", scope: !3, file: !3, line: 480, type: !5, scopeLine: 481, spFlags: DISPFlagDefinition, unit: !8, retainedNodes: !9)
69 !5 = !DISubroutineType(types: !6)
71 !7 = !DIBasicType(name: "int", size: 16, encoding: DW_ATE_signed)
72 !8 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 15.0.0.prerel", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, retainedTypes: !9, globals: !9, splitDebugInlining: false, nameTableKind: None)
74 !10 = !DIBasicType(name: "long", size: 32, encoding: DW_ATE_signed)
75 !11 = !DILocation(line: 522, column: 23, scope: !2)
76 ;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line: