| ; RUN: opt < %s -simplifycfg -S | FileCheck %s |
| ; RUN: opt < %s -strip-debug -simplifycfg -S | FileCheck %s |
| |
| ; Verify that the and.2 instruction is eliminated even in the presence of a |
| ; preceding debug intrinsic. |
| |
| ; CHECK-LABEL: bb1: |
| ; CHECK: and i1 false, false |
| ; CHECK-LABEL: bb2: |
| ; CHECK-NOT: and i1 false, false |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; Function Attrs: norecurse nounwind |
| define void @foo() local_unnamed_addr #0 !dbg !4 { |
| bb1: |
| %and.1 = and i1 false, false |
| %cmp = icmp eq i16 0, 0 |
| br i1 %cmp, label %bb2, label %bb3 |
| |
| bb2: ; preds = %bb1 |
| call void @llvm.dbg.value(metadata i16 0, metadata !8, metadata !DIExpression()), !dbg !9 |
| %and.2 = and i1 false, false |
| br label %bb3 |
| |
| bb3: ; preds = %bb2, %bb1 |
| ret void |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.value(metadata, metadata, metadata) #1 |
| |
| attributes #0 = { norecurse nounwind } |
| attributes #1 = { nounwind readnone speculatable } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "Foo", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2) |
| !1 = !DIFile(filename: "foo.c", directory: "/") |
| !2 = !{} |
| !3 = !{i32 2, !"Debug Info Version", i32 3} |
| !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) |
| !5 = !DISubroutineType(types: !6) |
| !6 = !{null, !7} |
| !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !8 = !DILocalVariable(name: "p_1", arg: 1, scope: !4, line: 4, type: !7) |
| !9 = distinct !DILocation(line: 11, column: 3, scope: !4) |
