1 ; XFAIL: * 2 ; RUN: opt < %s -newgvn -o /dev/null -pass-remarks-output=%t -S -pass-remarks=gvn \ 3 ; RUN: 2>&1 | FileCheck %s 4 ; RUN: cat %t | FileCheck -check-prefix=YAML %s 5 ; RUN: opt < %s -passes=newgvn -o /dev/null -pass-remarks-output=%t -S -pass-remarks=gvn \ 6 ; RUN: 2>&1 | FileCheck %s 7 ; RUN: cat %t | FileCheck -check-prefix=YAML %s 8 9 10 ; CHECK: remark: <unknown>:0:0: load of type i32 eliminated{{$}} 11 ; CHECK-NEXT: remark: <unknown>:0:0: load of type i32 eliminated{{$}} 12 ; CHECK-NEXT: remark: <unknown>:0:0: load of type i32 eliminated{{$}} 13 ; CHECK-NOT: remark: 14 15 ; YAML: --- !Passed 16 ; YAML-NEXT: Pass: gvn 17 ; YAML-NEXT: Name: LoadElim 18 ; YAML-NEXT: Function: arg 19 ; YAML-NEXT: Args: 20 ; YAML-NEXT: - String: 'load of type ' 21 ; YAML-NEXT: - Type: i32 22 ; YAML-NEXT: - String: ' eliminated' 23 ; YAML-NEXT: - String: ' in favor of ' 24 ; YAML-NEXT: - InfavorOfValue: i 25 ; YAML-NEXT: ... 26 ; YAML-NEXT: --- !Passed 27 ; YAML-NEXT: Pass: gvn 28 ; YAML-NEXT: Name: LoadElim 29 ; YAML-NEXT: Function: const 30 ; YAML-NEXT: Args: 31 ; YAML-NEXT: - String: 'load of type ' 32 ; YAML-NEXT: - Type: i32 33 ; YAML-NEXT: - String: ' eliminated' 34 ; YAML-NEXT: - String: ' in favor of ' 35 ; YAML-NEXT: - InfavorOfValue: '4' 36 ; YAML-NEXT: ... 37 ; YAML-NEXT: --- !Passed 38 ; YAML-NEXT: Pass: gvn 39 ; YAML-NEXT: Name: LoadElim 40 ; YAML-NEXT: Function: inst 41 ; YAML-NEXT: Args: 42 ; YAML-NEXT: - String: 'load of type ' 43 ; YAML-NEXT: - Type: i32 44 ; YAML-NEXT: - String: ' eliminated' 45 ; YAML-NEXT: - String: ' in favor of ' 46 ; YAML-NEXT: - InfavorOfValue: load 47 ; YAML-NEXT: ... 48 ; YAML-NEXT: --- !Missed 49 ; YAML-NEXT: Pass: gvn 50 ; YAML-NEXT: Name: LoadClobbered 51 ; YAML-NEXT: DebugLoc: { File: /tmp/s.c, Line: 3, Column: 3 } 52 ; YAML-NEXT: Function: may_alias 53 ; YAML-NEXT: Args: 54 ; YAML-NEXT: - String: 'load of type ' 55 ; YAML-NEXT: - Type: i32 56 ; YAML-NEXT: - String: ' not eliminated' 57 ; YAML-NEXT: - String: ' in favor of ' 58 ; YAML-NEXT: - OtherAccess: load 59 ; YAML-NEXT: DebugLoc: { File: /tmp/s.c, Line: 1, Column: 13 } 60 ; YAML-NEXT: - String: ' because it is clobbered by ' 61 ; YAML-NEXT: - ClobberedBy: store 62 ; YAML-NEXT: DebugLoc: { File: /tmp/s.c, Line: 2, Column: 10 } 63 ; YAML-NEXT: ... 64 65 define i32 @arg(i32* %p, i32 %i) { 66 entry: 67 store i32 %i, i32* %p 68 %load = load i32, i32* %p 69 ret i32 %load 70 } 71 72 define i32 @const(i32* %p) { 73 entry: 74 store i32 4, i32* %p 75 %load = load i32, i32* %p 76 ret i32 %load 77 } 78 79 define i32 @inst(i32* %p) { 80 entry: 81 %load1 = load i32, i32* %p 82 %load = load i32, i32* %p 83 %add = add i32 %load1, %load 84 ret i32 %add 85 } 86 87 define i32 @may_alias(i32* %p, i32* %r) !dbg !7 { 88 entry: 89 %load1 = load i32, i32* %p, !tbaa !13, !dbg !9 90 store i32 4, i32* %r, !tbaa !13, !dbg !10 91 %load = load i32, i32* %p, !tbaa !13, !dbg !11 92 %add = add i32 %load1, %load 93 ret i32 %add 94 } 95 !llvm.dbg.cu = !{!0} 96 !llvm.module.flags = !{!3, !4, !5} 97 !llvm.ident = !{!6} 98 99 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.0 (trunk 282540) (llvm/trunk 282542)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2) 100 !1 = !DIFile(filename: "/tmp/s.c", directory: "/tmp") 101 !2 = !{} 102 !3 = !{i32 2, !"Dwarf Version", i32 4} 103 !4 = !{i32 2, !"Debug Info Version", i32 3} 104 !5 = !{i32 1, !"PIC Level", i32 2} 105 !6 = !{!"clang version 4.0.0 (trunk 282540) (llvm/trunk 282542)"} 106 !7 = distinct !DISubprogram(name: "may_alias", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: true, unit: !0, retainedNodes: !2) 107 !8 = !DISubroutineType(types: !2) 108 !9 = !DILocation(line: 1, column: 13, scope: !7) 109 !10 = !DILocation(line: 2, column: 10, scope: !7) 110 !11 = !DILocation(line: 3, column: 3, scope: !7) 111 112 !12 = !{ !"tbaa root" } 113 !13 = !{ !"int", !12 } 114
