Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

external/llvm/test/DebugInfo/Generic/gvn.ll

@@ -1,107 +0,0 @@
-; RUN: opt < %s -gvn -S | FileCheck %s
-;
-; Produced at -O2 from:
-; int a, b;
-; void f1(int *p1) {
-;   if (b)
-;     a = 1;
-;   if (a && *p1)
-;     f4();
-; }
-; int f2(int);
-; void f3(void) {
-;   a = f2(1);
-;   f1(&a);
-; }
-source_filename = "test/DebugInfo/Generic/gvn.ll"
-target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
-target triple = "arm64-apple-ios"
-
-@a = common global i32 0, align 4, !dbg !0
-@b = common global i32 0, align 4, !dbg !6
-
-; Function Attrs: nounwind
-define void @f3() #0 !dbg !12 {
-entry:
-  ; Verify that the call still has a debug location after GVN.
-  ; CHECK: %call = tail call i32 @f2(i32 1) #{{[0-9]}}, !dbg
-  %call = tail call i32 @f2(i32 1) #0, !dbg !15
-  store i32 %call, i32* @a, align 4, !dbg !15, !tbaa !24
-  tail call void @llvm.dbg.value(metadata i32* @a, metadata !22, metadata !28) #0, !dbg !29
-  %0 = load i32, i32* @b, align 4, !dbg !29, !tbaa !24
-  %tobool.i = icmp eq i32 %0, 0, !dbg !29
-  br i1 %tobool.i, label %if.end.i, label %land.lhs.true.i.thread, !dbg !30
-
-land.lhs.true.i.thread:                           ; preds = %entry
-  store i32 1, i32* @a, align 4, !dbg !32, !tbaa !24
-  br label %if.then.3.i, !dbg !33
-
-  ; This instruction has no debug location -- in this
-  ; particular case it was removed by a bug in SimplifyCFG.
-if.end.i:                                         ; preds = %entry
-  %.pr = load i32, i32* @a, align 4
-  ; GVN is supposed to replace the load of %.pr with a direct reference to %call.
-  ; CHECK: %tobool2.i = icmp eq i32 %call, 0, !dbg
-  %tobool2.i = icmp eq i32 %.pr, 0, !dbg !34
-  br i1 %tobool2.i, label %f1.exit, label %if.then.3.i, !dbg !34
-
-if.then.3.i:                                      ; preds = %if.end.i, %land.lhs.true.i.thread
-  %call.i = tail call i32 bitcast (i32 (...)* @f4 to i32 ()*)() #0, !dbg !35
-  br label %f1.exit, !dbg !35
-
-f1.exit:                                          ; preds = %if.then.3.i, %if.end.i
-  ret void, !dbg !36
-}
-
-declare i32 @f2(i32)
-
-declare i32 @f4(...)
-
-; Function Attrs: nounwind readnone
-declare void @llvm.dbg.value(metadata, metadata, metadata) #1
-
-attributes #0 = { nounwind }
-attributes #1 = { nounwind readnone }
-
-!llvm.dbg.cu = !{!2}
-!llvm.module.flags = !{!9, !10}
-!llvm.ident = !{!11}
-
-!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
-!1 = !DIGlobalVariable(name: "a", scope: !2, file: !3, line: 1, type: !8, isLocal: false, isDefinition: true)
-!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 3.8.0 (trunk 245562) (llvm/trunk 245569)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
-!3 = !DIFile(filename: "test.c", directory: "/")
-!4 = !{}
-!5 = !{!0, !6}
-!6 = !DIGlobalVariableExpression(var: !7, expr: !DIExpression())
-!7 = !DIGlobalVariable(name: "b", scope: !2, file: !3, line: 1, type: !8, isLocal: false, isDefinition: true)
-!8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
-!9 = !{i32 2, !"Dwarf Version", i32 2}
-!10 = !{i32 2, !"Debug Info Version", i32 3}
-!11 = !{!"clang version 3.8.0 (trunk 245562) (llvm/trunk 245569)"}
-!12 = distinct !DISubprogram(name: "f3", scope: !3, file: !3, line: 9, type: !13, isLocal: false, isDefinition: true, scopeLine: 9, flags: DIFlagPrototyped, isOptimized: true, unit: !2, variables: !4)
-!13 = !DISubroutineType(types: !14)
-!14 = !{null}
-!15 = !DILocation(line: 5, scope: !16, inlinedAt: !23)
-!16 = distinct !DILexicalBlock(scope: !17, file: !3, line: 5)
-!17 = distinct !DISubprogram(name: "f1", scope: !3, file: !3, line: 2, type: !18, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !2, variables: !21)
-!18 = !DISubroutineType(types: !19)
-!19 = !{null, !20}
-!20 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 64, align: 64)
-!21 = !{!22}
-!22 = !DILocalVariable(name: "p1", arg: 1, scope: !17, file: !3, line: 2, type: !20)
-!23 = distinct !DILocation(line: 11, scope: !12)
-!24 = !{!25, !25, i64 0}
-!25 = !{!"int", !26, i64 0}
-!26 = !{!"omnipotent char", !27, i64 0}
-!27 = !{!"Simple C/C++ TBAA"}
-!28 = !DIExpression()
-!29 = !DILocation(line: 2, scope: !17, inlinedAt: !23)
-!30 = !DILocation(line: 3, scope: !31, inlinedAt: !23)
-!31 = distinct !DILexicalBlock(scope: !17, file: !3, line: 3)
-!32 = !DILocation(line: 3, scope: !17, inlinedAt: !23)
-!33 = !DILocation(line: 4, scope: !31, inlinedAt: !23)
-!34 = !DILocation(line: 5, scope: !17, inlinedAt: !23)
-!35 = !DILocation(line: 6, scope: !16, inlinedAt: !23)
-!36 = !DILocation(line: 12, scope: !12)
-