| ; RUN: opt -passes=loop-deletion %s -o /dev/null --pass-remarks-output=%t --pass-remarks-filter=loop-delete |
| ; RUN: cat %t | FileCheck %s |
| |
| ; Check that we use the right debug location: the loop header. |
| ; CHECK: --- !Passed |
| ; CHECK-NEXT: Pass: loop-delete |
| ; CHECK-NEXT: Name: Invariant |
| ; CHECK-NEXT: DebugLoc: { File: loop.c, Line: 2, Column: 3 } |
| ; CHECK-NEXT: Function: main |
| ; CHECK-NEXT: Args: |
| ; CHECK-NEXT: - String: Loop deleted because it is invariant |
| ; CHECK-NEXT: ... |
| define i32 @main() local_unnamed_addr #0 { |
| entry: |
| br label %for.cond, !dbg !9 |
| |
| for.cond: |
| %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.cond ] |
| %cmp = icmp ult i32 %i.0, 1000 |
| %inc = add nuw nsw i32 %i.0, 1 |
| br i1 %cmp, label %for.cond, label %for.cond.cleanup |
| |
| for.cond.cleanup: |
| ret i32 0 |
| } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "", isOptimized: true, runtimeVersion: 0, emissionKind: NoDebug, enums: !2, nameTableKind: None, sysroot: "/") |
| !1 = !DIFile(filename: "loop.c", directory: "") |
| !2 = !{} |
| !3 = !{i32 2, !"Debug Info Version", i32 3} |
| !6 = distinct !DISubprogram(name: "main", scope: !7, file: !7, line: 1, type: !8, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2) |
| !7 = !DIFile(filename: "loop.c", directory: "") |
| !8 = !DISubroutineType(types: !2) |
| !9 = !DILocation(line: 2, column: 3, scope: !6) |
