forked from OSchip/llvm-project
89 lines
6.5 KiB
LLVM
89 lines
6.5 KiB
LLVM
; RUN: llc -O2 < %s | FileCheck %s
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; RUN: llc -O2 -regalloc=basic < %s | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
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target triple = "x86_64-apple-darwin10"
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%struct.a = type { i32, %struct.a* }
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@llvm.used = appending global [1 x i8*] [i8* bitcast (i8* (%struct.a*)* @bar to i8*)], section "llvm.metadata" ; <[1 x i8*]*> [#uses=0]
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define i8* @bar(%struct.a* %myvar) nounwind optsize noinline ssp {
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entry:
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tail call void @llvm.dbg.value(metadata !{%struct.a* %myvar}, i64 0, metadata !8)
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%0 = getelementptr inbounds %struct.a* %myvar, i64 0, i32 0, !dbg !28 ; <i32*> [#uses=1]
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%1 = load i32* %0, align 8, !dbg !28 ; <i32> [#uses=1]
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tail call void @foo(i32 %1) nounwind optsize noinline ssp, !dbg !28
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%2 = bitcast %struct.a* %myvar to i8*, !dbg !30 ; <i8*> [#uses=1]
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ret i8* %2, !dbg !30
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}
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declare void @foo(i32) nounwind optsize noinline ssp
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declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
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!llvm.dbg.cu = !{!2}
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!0 = metadata !{i32 786484, i32 0, metadata !1, metadata !"ret", metadata !"ret", metadata !"", metadata !1, i32 7, metadata !3, i1 false, i1 true, null, null} ; [ DW_TAG_variable ]
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!1 = metadata !{i32 786473, metadata !36} ; [ DW_TAG_file_type ]
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!2 = metadata !{i32 786449, metadata !36, i32 1, metadata !"4.2.1 (Based on Apple Inc. build 5658) (LLVM build)", i1 true, metadata !"", i32 0, metadata !37, metadata !37, metadata !32, metadata !31, metadata !31, metadata !""} ; [ DW_TAG_compile_unit ]
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!3 = metadata !{i32 786468, metadata !36, metadata !1, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
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!4 = metadata !{i32 786689, metadata !5, metadata !"x", metadata !1, i32 12, metadata !3, i32 0, null} ; [ DW_TAG_arg_variable ]
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!5 = metadata !{i32 786478, metadata !36, metadata !1, metadata !"foo", metadata !"foo", metadata !"foo", i32 13, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 true, void (i32)* @foo, null, null, metadata !33, i32 13} ; [ DW_TAG_subprogram ]
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!6 = metadata !{i32 786453, metadata !36, metadata !1, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = metadata !{null, metadata !3}
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!8 = metadata !{i32 786689, metadata !9, metadata !"myvar", metadata !1, i32 17, metadata !13, i32 0, null} ; [ DW_TAG_arg_variable ]
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!9 = metadata !{i32 786478, metadata !36, metadata !1, metadata !"bar", metadata !"bar", metadata !"bar", i32 17, metadata !10, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 true, i8* (%struct.a*)* @bar, null, null, metadata !34, i32 17} ; [ DW_TAG_subprogram ]
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!10 = metadata !{i32 786453, metadata !36, metadata !1, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !11, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!11 = metadata !{metadata !12, metadata !13}
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!12 = metadata !{i32 786447, metadata !36, metadata !1, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, null} ; [ DW_TAG_pointer_type ]
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!13 = metadata !{i32 786447, metadata !36, metadata !1, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !14} ; [ DW_TAG_pointer_type ]
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!14 = metadata !{i32 786451, metadata !36, metadata !1, metadata !"a", i32 2, i64 128, i64 64, i64 0, i32 0, null, metadata !15, i32 0, null, null, null} ; [ DW_TAG_structure_type ] [a] [line 2, size 128, align 64, offset 0] [def] [from ]
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!15 = metadata !{metadata !16, metadata !17}
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!16 = metadata !{i32 786445, metadata !36, metadata !14, metadata !"c", i32 3, i64 32, i64 32, i64 0, i32 0, metadata !3} ; [ DW_TAG_member ]
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!17 = metadata !{i32 786445, metadata !36, metadata !14, metadata !"d", i32 4, i64 64, i64 64, i64 64, i32 0, metadata !13} ; [ DW_TAG_member ]
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!18 = metadata !{i32 786689, metadata !19, metadata !"argc", metadata !1, i32 22, metadata !3, i32 0, null} ; [ DW_TAG_arg_variable ]
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!19 = metadata !{i32 786478, metadata !36, metadata !1, metadata !"main", metadata !"main", metadata !"main", i32 22, metadata !20, i1 false, i1 true, i32 0, i32 0, null, i1 false, i1 true, null, null, null, metadata !35, i32 22} ; [ DW_TAG_subprogram ]
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!20 = metadata !{i32 786453, metadata !36, metadata !1, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !21, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!21 = metadata !{metadata !3, metadata !3, metadata !22}
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!22 = metadata !{i32 786447, metadata !36, metadata !1, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !23} ; [ DW_TAG_pointer_type ]
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!23 = metadata !{i32 786447, metadata !36, metadata !1, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !24} ; [ DW_TAG_pointer_type ]
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!24 = metadata !{i32 786468, metadata !36, metadata !1, metadata !"char", i32 0, i64 8, i64 8, i64 0, i32 0, i32 6} ; [ DW_TAG_base_type ]
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!25 = metadata !{i32 786689, metadata !19, metadata !"argv", metadata !1, i32 22, metadata !22, i32 0, null} ; [ DW_TAG_arg_variable ]
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!26 = metadata !{i32 786688, metadata !27, metadata !"e", metadata !1, i32 23, metadata !14, i32 0, null} ; [ DW_TAG_auto_variable ]
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!27 = metadata !{i32 786443, metadata !36, metadata !19, i32 22, i32 0, i32 0} ; [ DW_TAG_lexical_block ]
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!28 = metadata !{i32 18, i32 0, metadata !29, null}
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!29 = metadata !{i32 786443, metadata !36, metadata !9, i32 17, i32 0, i32 1} ; [ DW_TAG_lexical_block ]
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!30 = metadata !{i32 19, i32 0, metadata !29, null}
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!31 = metadata !{metadata !0}
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!32 = metadata !{metadata !5, metadata !9, metadata !19}
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!33 = metadata !{metadata !4}
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!34 = metadata !{metadata !8}
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!35 = metadata !{metadata !18, metadata !25, metadata !26}
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!36 = metadata !{metadata !"foo.c", metadata !"/tmp/"}
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!37 = metadata !{i32 0}
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; The variable bar:myvar changes registers after the first movq.
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; It is cobbered by popq %rbx
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; CHECK: movq
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; CHECK-NEXT: [[LABEL:Ltmp[0-9]*]]
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; CHECK: .loc 1 19 0
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; CHECK: popq
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; CHECK-NEXT: [[CLOBBER:Ltmp[0-9]*]]
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; CHECK: Ldebug_loc0:
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; CHECK-NEXT: .quad Lfunc_begin0
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; CHECK-NEXT: .quad [[LABEL]]
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; CHECK-NEXT: Lset{{.*}} = Ltmp{{.*}}-Ltmp{{.*}} ## Loc expr size
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; CHECK-NEXT: .short Lset{{.*}}
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; CHECK-NEXT: Ltmp{{.*}}:
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; CHECK-NEXT: .byte 85
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; CHECK-NEXT: Ltmp{{.*}}:
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; CHECK-NEXT: .quad [[LABEL]]
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; CHECK-NEXT: .quad [[CLOBBER]]
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; CHECK-NEXT: Lset{{.*}} = Ltmp{{.*}}-Ltmp{{.*}} ## Loc expr size
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; CHECK-NEXT: .short Lset{{.*}}
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; CHECK-NEXT: Ltmp{{.*}}:
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; CHECK-NEXT: .byte 83
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; CHECK-NEXT: Ltmp{{.*}}:
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