; XFAIL: * ; RUN: opt < %s -newgvn -o /dev/null -pass-remarks-output=%t -S -pass-remarks=gvn \ ; RUN: 2>&1 | FileCheck %s ; RUN: cat %t | FileCheck -check-prefix=YAML %s ; RUN: opt < %s -passes=newgvn -o /dev/null -pass-remarks-output=%t -S -pass-remarks=gvn \ ; RUN: 2>&1 | FileCheck %s ; RUN: cat %t | FileCheck -check-prefix=YAML %s ; CHECK: remark: :0:0: load of type i32 eliminated{{$}} ; CHECK-NEXT: remark: :0:0: load of type i32 eliminated{{$}} ; CHECK-NEXT: remark: :0:0: load of type i32 eliminated{{$}} ; CHECK-NOT: remark: ; YAML: --- !Passed ; YAML-NEXT: Pass: gvn ; YAML-NEXT: Name: LoadElim ; YAML-NEXT: Function: arg ; YAML-NEXT: Args: ; YAML-NEXT: - String: 'load of type ' ; YAML-NEXT: - Type: i32 ; YAML-NEXT: - String: ' eliminated' ; YAML-NEXT: - String: ' in favor of ' ; YAML-NEXT: - InfavorOfValue: i ; YAML-NEXT: ... ; YAML-NEXT: --- !Passed ; YAML-NEXT: Pass: gvn ; YAML-NEXT: Name: LoadElim ; YAML-NEXT: Function: const ; YAML-NEXT: Args: ; YAML-NEXT: - String: 'load of type ' ; YAML-NEXT: - Type: i32 ; YAML-NEXT: - String: ' eliminated' ; YAML-NEXT: - String: ' in favor of ' ; YAML-NEXT: - InfavorOfValue: '4' ; YAML-NEXT: ... ; YAML-NEXT: --- !Passed ; YAML-NEXT: Pass: gvn ; YAML-NEXT: Name: LoadElim ; YAML-NEXT: Function: inst ; YAML-NEXT: Args: ; YAML-NEXT: - String: 'load of type ' ; YAML-NEXT: - Type: i32 ; YAML-NEXT: - String: ' eliminated' ; YAML-NEXT: - String: ' in favor of ' ; YAML-NEXT: - InfavorOfValue: load ; YAML-NEXT: ... ; YAML-NEXT: --- !Missed ; YAML-NEXT: Pass: gvn ; YAML-NEXT: Name: LoadClobbered ; YAML-NEXT: DebugLoc: { File: /tmp/s.c, Line: 3, Column: 3 } ; YAML-NEXT: Function: may_alias ; YAML-NEXT: Args: ; YAML-NEXT: - String: 'load of type ' ; YAML-NEXT: - Type: i32 ; YAML-NEXT: - String: ' not eliminated' ; YAML-NEXT: - String: ' in favor of ' ; YAML-NEXT: - OtherAccess: load ; YAML-NEXT: DebugLoc: { File: /tmp/s.c, Line: 1, Column: 13 } ; YAML-NEXT: - String: ' because it is clobbered by ' ; YAML-NEXT: - ClobberedBy: store ; YAML-NEXT: DebugLoc: { File: /tmp/s.c, Line: 2, Column: 10 } ; YAML-NEXT: ... define i32 @arg(i32* %p, i32 %i) { entry: store i32 %i, i32* %p %load = load i32, i32* %p ret i32 %load } define i32 @const(i32* %p) { entry: store i32 4, i32* %p %load = load i32, i32* %p ret i32 %load } define i32 @inst(i32* %p) { entry: %load1 = load i32, i32* %p %load = load i32, i32* %p %add = add i32 %load1, %load ret i32 %add } define i32 @may_alias(i32* %p, i32* %r) !dbg !7 { entry: %load1 = load i32, i32* %p, !tbaa !13, !dbg !9 store i32 4, i32* %r, !tbaa !13, !dbg !10 %load = load i32, i32* %p, !tbaa !13, !dbg !11 %add = add i32 %load1, %load ret i32 %add } !llvm.dbg.cu = !{!0} !llvm.module.flags = !{!3, !4, !5} !llvm.ident = !{!6} !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) !1 = !DIFile(filename: "/tmp/s.c", directory: "/tmp") !2 = !{} !3 = !{i32 2, !"Dwarf Version", i32 4} !4 = !{i32 2, !"Debug Info Version", i32 3} !5 = !{i32 1, !"PIC Level", i32 2} !6 = !{!"clang version 4.0.0 (trunk 282540) (llvm/trunk 282542)"} !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) !8 = !DISubroutineType(types: !2) !9 = !DILocation(line: 1, column: 13, scope: !7) !10 = !DILocation(line: 2, column: 10, scope: !7) !11 = !DILocation(line: 3, column: 3, scope: !7) !12 = !{ !"tbaa root" } !13 = !{ !"int", !12 }