1; RUN: opt < %s -simplifycfg -S | FileCheck %s 2; RUN: opt < %s -strip-debug -simplifycfg -S | FileCheck %s 3 4; Verify that the and.2 instruction is eliminated even in the presence of a 5; preceding debug intrinsic. 6 7; CHECK-LABEL: bb1: 8; CHECK: and i1 false, false 9; CHECK-NOT: and i1 false, false 10 11target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 12target triple = "x86_64-unknown-linux-gnu" 13 14; Function Attrs: norecurse nounwind 15define void @foo() local_unnamed_addr #0 !dbg !4 { 16bb1: 17 %and.1 = and i1 false, false 18 %cmp = icmp eq i16 0, 0 19 br i1 %cmp, label %bb2, label %bb3 20 21bb2: ; preds = %bb1 22 call void @llvm.dbg.value(metadata i16 0, metadata !8, metadata !DIExpression()), !dbg !9 23 %and.2 = and i1 false, false 24 br label %bb3 25 26bb3: ; preds = %bb2, %bb1 27 ret void 28} 29 30; Function Attrs: nounwind readnone speculatable 31declare void @llvm.dbg.value(metadata, metadata, metadata) #1 32 33attributes #0 = { norecurse nounwind } 34attributes #1 = { nounwind readnone speculatable } 35 36!llvm.dbg.cu = !{!0} 37!llvm.module.flags = !{!3} 38 39!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "Foo", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2) 40!1 = !DIFile(filename: "foo.c", directory: "/") 41!2 = !{} 42!3 = !{i32 2, !"Debug Info Version", i32 3} 43!4 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 10, type: !5, isLocal: false, isDefinition: true, scopeLine: 10, isOptimized: false, unit: !0, retainedNodes: !2) 44!5 = !DISubroutineType(types: !6) 45!6 = !{null, !7} 46!7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 47!8 = !DILocalVariable(name: "p_1", arg: 1, scope: !4, line: 4, type: !7) 48!9 = distinct !DILocation(line: 11, column: 3, scope: !4) 49