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Fix PR16143: Insert DEBUG_VALUE before terminator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182717 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick
parent
f0c74bda2e
commit
9edb37feb5
@ -883,7 +883,7 @@ EmitSchedule(MachineBasicBlock::iterator &InsertPos) {
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// Insert at the instruction, which may be in a different
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// block, if the block was split by a custom inserter.
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MachineBasicBlock::iterator Pos = MI;
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MI->getParent()->insert(llvm::next(Pos), DbgMI);
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MI->getParent()->insert(Pos, DbgMI);
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}
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}
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}
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130
test/CodeGen/X86/dbg-value-terminator.ll
Normal file
130
test/CodeGen/X86/dbg-value-terminator.ll
Normal file
@ -0,0 +1,130 @@
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; RUN: llc -mtriple=x86_64-apple-macosx < %s -verify-machineinstrs | FileCheck %s
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;
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; PR16143: MachineOperand::setIsKill(bool): Assertion
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;
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; verify-machineinstrs should ensure that DEBUG_VALUEs go before the
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; terminator.
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;
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; CHECK: test:
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; CHECK: ##DEBUG_VALUE: :i
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%a = type { i32, i32 }
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define hidden fastcc %a* @test() #1 {
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entry:
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%0 = icmp eq %a* undef, null, !dbg !1
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br i1 %0, label %"14", label %return, !dbg !1
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"14": ; preds = %"8"
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br i1 undef, label %"25", label %"21", !dbg !1
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"21": ; preds = %"14"
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br i1 undef, label %may_unswitch_on.exit, label %"6.i", !dbg !1
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"6.i": ; preds = %"21"
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br i1 undef, label %"10.i", label %may_unswitch_on.exit, !dbg !1
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"10.i": ; preds = %"6.i"
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br i1 undef, label %may_unswitch_on.exit, label %"12.i", !dbg !1
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"12.i": ; preds = %"10.i"
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br i1 undef, label %"4.i.i", label %"3.i.i", !dbg !1
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"3.i.i": ; preds = %"12.i"
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br i1 undef, label %"4.i.i", label %VEC_edge_base_index.exit.i, !dbg !1
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"4.i.i": ; preds = %"3.i.i", %"12.i"
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unreachable, !dbg !1
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VEC_edge_base_index.exit.i: ; preds = %"3.i.i"
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br i1 undef, label %may_unswitch_on.exit, label %"16.i", !dbg !1
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"16.i": ; preds = %VEC_edge_base_index.exit.i
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br i1 undef, label %"4.i6.i", label %"3.i5.i", !dbg !1
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"3.i5.i": ; preds = %"16.i"
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br i1 undef, label %VEC_edge_base_index.exit7.i, label %"4.i6.i", !dbg !1
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"4.i6.i": ; preds = %"3.i5.i", %"16.i"
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unreachable, !dbg !1
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VEC_edge_base_index.exit7.i: ; preds = %"3.i5.i"
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br i1 undef, label %may_unswitch_on.exit, label %"21.i", !dbg !1
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"21.i": ; preds = %VEC_edge_base_index.exit7.i
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br i1 undef, label %may_unswitch_on.exit, label %"23.i", !dbg !1
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"23.i": ; preds = %"21.i"
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br i1 undef, label %may_unswitch_on.exit, label %"26.i", !dbg !1
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"26.i": ; preds = %"34.i", %"23.i"
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%1 = icmp eq i32 undef, 9, !dbg !1
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br i1 %1, label %"34.i", label %"28.i", !dbg !1
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"28.i": ; preds = %"26.i"
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unreachable
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"34.i": ; preds = %"26.i"
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br i1 undef, label %"26.i", label %"36.i", !dbg !1
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"36.i": ; preds = %"34.i"
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br i1 undef, label %"37.i", label %"38.i", !dbg !1
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"37.i": ; preds = %"36.i"
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br label %"38.i", !dbg !1
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"38.i": ; preds = %"37.i", %"36.i"
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br i1 undef, label %"39.i", label %"45.i", !dbg !1
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"39.i": ; preds = %"38.i"
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br i1 undef, label %"41.i", label %may_unswitch_on.exit, !dbg !1
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"41.i": ; preds = %"39.i"
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br i1 undef, label %may_unswitch_on.exit, label %"42.i", !dbg !1
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"42.i": ; preds = %"41.i"
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br i1 undef, label %may_unswitch_on.exit, label %"44.i", !dbg !1
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"44.i": ; preds = %"42.i"
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%2 = load %a** undef, align 8, !dbg !1
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%3 = bitcast %a* %2 to %a*, !dbg !1
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call void @llvm.dbg.value(metadata !{%a* %3}, i64 0, metadata !6), !dbg !12
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br label %may_unswitch_on.exit, !dbg !1
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"45.i": ; preds = %"38.i"
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unreachable
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may_unswitch_on.exit: ; preds = %"44.i", %"42.i", %"41.i", %"39.i", %"23.i", %"21.i", %VEC_edge_base_index.exit7.i, %VEC_edge_base_index.exit.i, %"10.i", %"6.i", %"21"
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%4 = phi %a* [ %3, %"44.i" ], [ null, %"6.i" ], [ null, %"10.i" ], [ null, %VEC_edge_base_index.exit7.i ], [ null, %VEC_edge_base_index.exit.i ], [ null, %"21.i" ], [ null, %"23.i" ], [ null, %"39.i" ], [ null, %"42.i" ], [ null, %"41.i" ], [ null, %"21" ]
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br label %return
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"25": ; preds = %"14"
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unreachable
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"return":
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%result = phi %a* [ null, %entry ], [ %4, %may_unswitch_on.exit ]
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ret %a* %result, !dbg !1
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}
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attributes #0 = { nounwind readnone }
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attributes #1 = { nounwind uwtable }
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declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
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!llvm.dbg.cu = !{!0}
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!0 = metadata !{i32 786449, metadata !20, i32 12, metadata !"Apple clang version", i1 true, metadata !"", i32 0, null, null, metadata !18, null, null, null} ; [ DW_TAG_compile_unit ]
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!1 = metadata !{i32 786478, metadata !2, metadata !"foo", metadata !"foo", metadata !"", metadata !2, i32 2, metadata !3, i1 false, i1 true, i32 0, i32 0, i32 0, i32 256, i1 true, %a* ()* @test, null, null, metadata !19, i32 0} ; [ DW_TAG_subprogram ]
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!2 = metadata !{i32 786473, metadata !20} ; [ DW_TAG_file_type ]
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!3 = metadata !{i32 786453, metadata !2, metadata !"", metadata !2, i32 0, i64 0, i64 0, i32 0, i32 0, i32 0, metadata !4, i32 0, i32 0} ; [ DW_TAG_subroutine_type ]
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!4 = metadata !{metadata !5}
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!5 = metadata !{i32 786468, metadata !0, metadata !"int", null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
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!6 = metadata !{i32 786689, metadata !1, metadata !"i", metadata !2, i32 16777218, metadata !5, i32 0, null} ; [ DW_TAG_arg_variable ]
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!7 = metadata !{i32 786689, metadata !1, metadata !"c", metadata !2, i32 33554434, metadata !8, i32 0, null} ; [ DW_TAG_arg_variable ]
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!8 = metadata !{i32 786447, metadata !0, metadata !"", null, i32 0, i64 64, i64 64, i64 0, i32 0, metadata !9} ; [ DW_TAG_pointer_type ]
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!9 = metadata !{i32 786468, metadata !0, metadata !"char", null, i32 0, i64 8, i64 8, i64 0, i32 0, i32 6} ; [ DW_TAG_base_type ]
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!10 = metadata !{i32 786688, metadata !11, metadata !"a", metadata !2, i32 3, metadata !9, i32 0, null} ; [ DW_TAG_auto_variable ]
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!11 = metadata !{i32 786443, metadata !20, metadata !1, i32 2, i32 25, i32 0} ; [ DW_TAG_lexical_block ]
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!12 = metadata !{i32 2, i32 13, metadata !1, null}
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!18 = metadata !{metadata !1}
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!19 = metadata !{metadata !6, metadata !7, metadata !10}
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!20 = metadata !{metadata !"a.c", metadata !"/private/tmp"}
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