Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/test/Transforms/GVN/dbg-redundant-load.ll

@@ -1,52 +0,0 @@
-; RUN: opt -gvn -S < %s | FileCheck %s
-
-; Check that the redundant load from %if.then is removed.
-; Also, check that the debug location associated to load %0 still refers to
-; line 3 and not line 6.
-
-target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
-
-; CHECK: @test_redundant_load(
-; CHECK-LABEL: entry:
-; CHECK-NEXT: load i32, i32* %Y, align 4, !dbg ![[LOC:[0-9]+]]
-; CHECK-LABEL: if.then:
-; CHECK-NOT: load
-; CHECK-LABEL: if.end:
-; CHECK: ![[LOC]] = !DILocation(line: 3, scope: !{{.*}})
-
-define i32 @test_redundant_load(i32 %X, i32* %Y) !dbg !6 {
-entry:
-  %0 = load i32, i32* %Y, align 4, !dbg !8
-  %cmp = icmp sgt i32 %X, -1, !dbg !9
-  br i1 %cmp, label %if.then, label %if.end, !dbg !9
-
-if.then:                                          ; preds = %entry
-  %1 = load i32, i32* %Y, align 4, !dbg !10
-  %add = add nsw i32 %0, %1, !dbg !10
-  call void @foo(), !dbg !11
-  br label %if.end, !dbg !12
-
-if.end:                                           ; preds = %if.then, %entry
-  %Result.0 = phi i32 [ %add, %if.then ], [ %0, %entry ]
-  ret i32 %Result.0, !dbg !13
-}
-
-declare void @foo()
-
-!llvm.dbg.cu = !{!0}
-!llvm.module.flags = !{!3, !4, !5}
-
-!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, isOptimized: false, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
-!1 = !DIFile(filename: "test.cpp", directory: "")
-!2 = !{}
-!3 = !{i32 2, !"Dwarf Version", i32 4}
-!4 = !{i32 2, !"Debug Info Version", i32 3}
-!5 = !{i32 1, !"PIC Level", i32 2}
-!6 = distinct !DISubprogram(name: "test_redundant_load", scope: !1, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !2)
-!7 = !DISubroutineType(types: !2)
-!8 = !DILocation(line: 3, scope: !6)
-!9 = !DILocation(line: 5, scope: !6)
-!10 = !DILocation(line: 6, scope: !6)
-!11 = !DILocation(line: 7, scope: !6)
-!12 = !DILocation(line: 8, scope: !6)
-!13 = !DILocation(line: 10, scope: !6)