Home | History | Annotate | Download | only in LoopSimplify
      1 ; Check that LoopSimplify creates debug locations in synthesized basic blocks.
      2 ; RUN: opt -loop-simplify %s -S -o - | FileCheck %s
      3 
      4 %union.anon = type { i32 }
      5 %"Length" = type <{ %union.anon, i8, i8, i8, i8 }>
      6 declare void @bar(%"Length"*) #3
      7 @catchtypeinfo = external unnamed_addr constant { i8*, i8*, i8* }
      8 declare i32 @__gxx_personality_v0(...)
      9 declare void @f1()
     10 declare void @f2()
     11 declare void @f3()
     12 
     13 ; CHECK-LABEL: @foo
     14 ; CHECK:       for.body.preheader:
     15 ; CHECK-NEXT:    br label %for.body, !dbg [[PREHEADER_LOC:![0-9]+]]
     16 ; CHECK:       for.end.loopexit:
     17 ; CHECK-NEXT:    br label %for.end, !dbg [[LOOPEXIT_LOC:![0-9]+]]
     18 
     19 define linkonce_odr hidden void @foo(%"Length"* %begin, %"Length"* %end) nounwind ssp uwtable align 2 !dbg !6 {
     20 entry:
     21   %cmp.4 = icmp eq %"Length"* %begin, %end, !dbg !7
     22   br i1 %cmp.4, label %for.end, label %for.body, !dbg !8
     23 
     24 for.body:                                         ; preds = %entry, %length.exit
     25   %begin.sink5 = phi %"Length"* [ %incdec.ptr, %length.exit ], [ %begin, %entry ]
     26   %m_type.i.i.i = getelementptr inbounds %"Length", %"Length"* %begin.sink5, i64 0, i32 2, !dbg !9
     27   %0 = load i8, i8* %m_type.i.i.i, align 1, !dbg !9
     28   %cmp.i.i = icmp eq i8 %0, 9, !dbg !7
     29   br i1 %cmp.i.i, label %if.then.i, label %length.exit, !dbg !8
     30 
     31 if.then.i:                                        ; preds = %for.body
     32   tail call void @bar(%"Length"* %begin.sink5) #7, !dbg !10
     33   br label %length.exit, !dbg !10
     34 
     35 length.exit:                        ; preds = %for.body, %if.then.i
     36   %incdec.ptr = getelementptr inbounds %"Length", %"Length"* %begin.sink5, i64 1, !dbg !11
     37   %cmp = icmp eq %"Length"* %incdec.ptr, %end, !dbg !7
     38   br i1 %cmp, label %for.end, label %for.body, !dbg !8
     39 
     40 for.end:                                          ; preds = %length.exit, %entry
     41   ret void, !dbg !12
     42 }
     43 
     44 ; CHECK-LABEL: @with_landingpad
     45 ; CHECK: catch.preheader:
     46 ; CHECK:   br label %catch, !dbg [[LPAD_PREHEADER_LOC:![0-9]+]]
     47 ; CHECK: catch.preheader.split-lp:
     48 ; CHECK:   br label %catch, !dbg [[LPAD_PREHEADER_LOC]]
     49 
     50 define void @with_landingpad() uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
     51 entry:
     52   invoke void @f1() to label %try.cont19 unwind label %catch, !dbg !13
     53 
     54 catch:                                            ; preds = %if.else, %entry
     55   %0 = landingpad { i8*, i32 }
     56           catch i8* bitcast ({ i8*, i8*, i8* }* @catchtypeinfo to i8*), !dbg !13
     57   invoke void @f3() to label %if.else unwind label %eh.resume, !dbg !13
     58 
     59 if.else:                                          ; preds = %catch
     60   invoke void @f2() to label %try.cont19 unwind label %catch, !dbg !13
     61 
     62 try.cont19:                                       ; preds = %if.else, %entry
     63   ret void, !dbg !13
     64 
     65 eh.resume:                                        ; preds = %catch
     66   %1 = landingpad { i8*, i32 }
     67           cleanup catch i8* bitcast ({ i8*, i8*, i8* }* @catchtypeinfo to i8*), !dbg !13
     68   resume { i8*, i32 } undef, !dbg !13
     69 }
     70 
     71 ; CHECK-DAG: [[PREHEADER_LOC]] = !DILocation(line: 73, column: 27, scope: !{{[0-9]+}})
     72 ; CHECK-DAG: [[LOOPEXIT_LOC]] = !DILocation(line: 75, column: 9, scope: !{{[0-9]+}})
     73 ; CHECK-DAG: [[LPAD_PREHEADER_LOC]] = !DILocation(line: 85, column: 1, scope: !{{[0-9]+}})
     74 
     75 !llvm.module.flags = !{!0, !1, !2}
     76 !0 = !{i32 2, !"Dwarf Version", i32 4}
     77 !1 = !{i32 2, !"Debug Info Version", i32 3}
     78 !2 = !{i32 1, !"PIC Level", i32 2}
     79 
     80 !3 = !{}
     81 !4 = !DISubroutineType(types: !3)
     82 !5 = !DIFile(filename: "Vector.h", directory: "/tmp")
     83 !6 = distinct !DISubprogram(name: "destruct", scope: !5, file: !5, line: 71, type: !4, isLocal: false, isDefinition: true, scopeLine: 72, flags: DIFlagPrototyped, isOptimized: false, variables: !3)
     84 !7 = !DILocation(line: 73, column: 38, scope: !6)
     85 !8 = !DILocation(line: 73, column: 13, scope: !6)
     86 !9 = !DILocation(line: 73, column: 27, scope: !6)
     87 !10 = !DILocation(line: 74, column: 17, scope: !6)
     88 !11 = !DILocation(line: 73, column: 46, scope: !6)
     89 !12 = !DILocation(line: 75, column: 9, scope: !6)
     90 !13 = !DILocation(line: 85, column: 1, scope: !6)
     91