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misched: Fix LiveInterval update to better handle DebugVal.

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Assertion failed: (itr != mi2iMap.end() && "Instruction not found in maps.")
rdar://12777252.

llvm-svn: 169070
This commit is contained in:
Andrew Trick 2012-12-01 01:22:41 +00:00
parent cc6d57195d
commit c6aec1a4f7
2 changed files with 55 additions and 1 deletions
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6
lib/CodeGen/LiveIntervalAnalysis.cpp
View File

@ -1292,7 +1292,11 @@ private:
MachineBasicBlock::iterator MII(MI);
++MII;
MachineBasicBlock* MBB = MI->getParent();
for (; MII != MBB->end() && LIS.getInstructionIndex(MII) < OldIdx; ++MII){
for (; MII != MBB->end(); ++MII){
if (MII->isDebugValue())
continue;
if (LIS.getInstructionIndex(MII) < OldIdx)
break;
for (MachineInstr::mop_iterator MOI = MII->operands_begin(),
MOE = MII->operands_end();
MOI != MOE; ++MOI) {

50
test/CodeGen/X86/2012-11-30-handlemove-dbg.ll Normal file
View File

@ -0,0 +1,50 @@
; RUN: llc < %s -mtriple=x86_64-apple-macosx -enable-misched \
; RUN: -verify-machineinstrs | FileCheck %s
;
; Test LiveInterval update handling of DBG_VALUE.
; rdar://12777252.
;
; CHECK: %entry
; CHECK: DEBUG_VALUE: hg
; CHECK: je
%struct.node.0.27 = type { i16, double, [3 x double], i32, i32 }
%struct.hgstruct.2.29 = type { %struct.bnode.1.28*, [3 x double], double, [3 x double] }
%struct.bnode.1.28 = type { i16, double, [3 x double], i32, i32, [3 x double], [3 x double], [3 x double], double, %struct.bnode.1.28*, %struct.bnode.1.28* }
declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
define signext i16 @subdivp(%struct.node.0.27* nocapture %p, double %dsq, double %tolsq, %struct.hgstruct.2.29* nocapture byval align 8 %hg) nounwind uwtable readonly ssp {
entry:
call void @llvm.dbg.declare(metadata !{%struct.hgstruct.2.29* %hg}, metadata !4)
%type = getelementptr inbounds %struct.node.0.27* %p, i64 0, i32 0
%0 = load i16* %type, align 2, !tbaa !8
%cmp = icmp eq i16 %0, 1
br i1 %cmp, label %return, label %for.cond.preheader
for.cond.preheader: ; preds = %entry
%arrayidx6.1 = getelementptr inbounds %struct.hgstruct.2.29* %hg, i64 0, i32 1, i64 1
%cmp22 = fcmp olt double 0.000000e+00, %dsq
%conv24 = zext i1 %cmp22 to i16
br label %return
return: ; preds = %for.cond.preheader, %entry
%retval.0 = phi i16 [ %conv24, %for.cond.preheader ], [ 0, %entry ]
ret i16 %retval.0
}
declare void @llvm.dbg.value(metadata, i64, metadata) nounwind readnone
!llvm.dbg.cu = !{!0}
!0 = metadata !{i32 786449, i32 0, i32 12, metadata !"MultiSource/Benchmarks/Olden/bh/newbh.c", metadata !"MultiSource/Benchmarks/Olden/bh", metadata !"clang version 3.3 (trunk 168918) (llvm/trunk 168920)", i1 true, i1 true, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3} ; [ DW_TAG_compile_unit ] [MultiSource/Benchmarks/Olden/bh/newbh.c] [DW_LANG_C99]
!1 = metadata !{metadata !2}
!2 = metadata !{i32 0}
!3 = metadata !{null}
!4 = metadata !{i32 786689, null, metadata !"hg", metadata !5, i32 67109589, metadata !6, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [hg] [line 725]
!5 = metadata !{i32 786473, metadata !"MultiSource/Benchmarks/Olden/bh/newbh.c", metadata !"MultiSource/Benchmarks/Olden/bh", null} ; [ DW_TAG_file_type ]
!6 = metadata !{i32 786454, null, metadata !"hgstruct", metadata !5, i32 492, i64 0, i64 0, i64 0, i32 0, metadata !7} ; [ DW_TAG_typedef ] [hgstruct] [line 492, size 0, align 0, offset 0] [from ]
!7 = metadata !{i32 786451, null, metadata !"", metadata !5, i32 487, i64 512, i64 64, i32 0, i32 0, null, null, i32 0, i32 0, i32 0} ; [ DW_TAG_structure_type ] [line 487, size 512, align 64, offset 0] [from ]
!8 = metadata !{metadata !"short", metadata !9}
!9 = metadata !{metadata !"omnipotent char", metadata !10}
!10 = metadata !{metadata !"Simple C/C++ TBAA"}