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      1 ; RUN: llc -march=hexagon -enable-misched=true < %s | FileCheck %s
      2 ; This test checks the delayed emission of CFI instructions
      3 ; This test also checks the proper initialization of RegisterPressureTracker.
      4 ; The RegisterPressureTracker must skip debug instructions upon entry of a BB
      5 
      6 target triple = "hexagon-unknown--elf"
      7 
      8 ; Check that allocframe was packetized with the two adds.
      9 ; CHECK: f0:
     10 ; CHECK: {
     11 ; CHECK-DAG: allocframe
     12 ; CHECK-DAG: add
     13 ; CHECK-DAG: add
     14 ; CHECK: }
     15 ; CHECK: dealloc_return
     16 ; CHECK: }
     17 
     18 
     19 ; Function Attrs: nounwind
     20 define i32 @f0(i32 %a0, i32 %a1) #0 !dbg !5 {
     21 b0:
     22   call void @llvm.dbg.value(metadata i32 %a0, metadata !10, metadata !DIExpression()), !dbg !12
     23   call void @llvm.dbg.value(metadata i32 %a1, metadata !11, metadata !DIExpression()), !dbg !13
     24   %v0 = add nsw i32 %a0, 1, !dbg !14
     25   %v1 = add nsw i32 %a1, 1, !dbg !15
     26   %v2 = tail call i32 @f1(i32 %v0, i32 %v1) #3, !dbg !16
     27   %v3 = add nsw i32 %v2, 1, !dbg !17
     28   ret i32 %v3, !dbg !18
     29 }
     30 
     31 declare i32 @f1(i32, i32) #1
     32 
     33 ; Function Attrs: nounwind readnone speculatable
     34 declare void @llvm.dbg.value(metadata, metadata, metadata) #2
     35 
     36 attributes #0 = { nounwind "target-cpu"="hexagonv55" }
     37 attributes #1 = { "target-cpu"="hexagonv55" }
     38 attributes #2 = { nounwind readnone speculatable }
     39 attributes #3 = { nounwind }
     40 
     41 !llvm.dbg.cu = !{!0}
     42 !llvm.module.flags = !{!3, !4}
     43 
     44 !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
     45 !1 = !DIFile(filename: "test.c", directory: "/test")
     46 !2 = !{}
     47 !3 = !{i32 2, !"Dwarf Version", i32 4}
     48 !4 = !{i32 2, !"Debug Info Version", i32 3}
     49 !5 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 3, type: !6, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !9)
     50 !6 = !DISubroutineType(types: !7)
     51 !7 = !{!8, !8, !8}
     52 !8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
     53 !9 = !{!10, !11}
     54 !10 = !DILocalVariable(name: "x", arg: 1, scope: !5, file: !1, line: 3, type: !8)
     55 !11 = !DILocalVariable(name: "y", arg: 2, scope: !5, file: !1, line: 3, type: !8)
     56 !12 = !DILocation(line: 3, column: 13, scope: !5)
     57 !13 = !DILocation(line: 3, column: 20, scope: !5)
     58 !14 = !DILocation(line: 4, column: 15, scope: !5)
     59 !15 = !DILocation(line: 4, column: 20, scope: !5)
     60 !16 = !DILocation(line: 4, column: 10, scope: !5)
     61 !17 = !DILocation(line: 4, column: 24, scope: !5)
     62 !18 = !DILocation(line: 4, column: 3, scope: !5)
     63