While replacing an MDNode elment, properly update MDNode's operand list.

MDNode's operand list does not include all elements.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81045 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 264 insertions, 0 deletions

diff --git a/test/Transforms/GlobalDCE/2009-09-03-MDNode.ll b/test/Transforms/GlobalDCE/2009-09-03-MDNode.ll
new file mode 100644
index 0000000..7993027
--- /dev/null
+++ b/test/Transforms/GlobalDCE/2009-09-03-MDNode.ll
@@ -0,0 +1,264 @@
+; RUN: llvm-as < %s | opt -globaldce | llc -O0 -o /dev/null
+
+%struct..0__pthread_mutex_s = type { i32, i32, i32, i32, i32, i32, %struct.__pthread_list_t }
+%"struct.__gnu_cxx::_ConvertibleConcept<unsigned int,unsigned int>" = type { i32 }
+%struct.__pthread_list_t = type { %struct.__pthread_list_t*, %struct.__pthread_list_t* }
+%struct.pthread_attr_t = type { i64, [48 x i8] }
+%struct.pthread_mutex_t = type { %struct..0__pthread_mutex_s }
+
+@_ZL20__gthrw_pthread_oncePiPFvvE = alias weak i32 (i32*, void ()*)* @pthread_once ; <i32 (i32*, void ()*)*> [#uses=0]
+@_ZL27__gthrw_pthread_getspecificj = alias weak i8* (i32)* @pthread_getspecific ; <i8* (i32)*> [#uses=0]
+@_ZL27__gthrw_pthread_setspecificjPKv = alias weak i32 (i32, i8*)* @pthread_setspecific ; <i32 (i32, i8*)*> [#uses=0]
+@_ZL22__gthrw_pthread_createPmPK14pthread_attr_tPFPvS3_ES3_ = alias weak i32 (i64*, %struct.pthread_attr_t*, i8* (i8*)*, i8*)* @pthread_create ; <i32 (i64*, %struct.pthread_attr_t*, i8* (i8*)*, i8*)*> [#uses=0]
+@_ZL22__gthrw_pthread_cancelm = alias weak i32 (i64)* @pthread_cancel ; <i32 (i64)*> [#uses=0]
+@_ZL26__gthrw_pthread_mutex_lockP15pthread_mutex_t = alias weak i32 (%struct.pthread_mutex_t*)* @pthread_mutex_lock ; <i32 (%struct.pthread_mutex_t*)*> [#uses=0]
+@_ZL29__gthrw_pthread_mutex_trylockP15pthread_mutex_t = alias weak i32 (%struct.pthread_mutex_t*)* @pthread_mutex_trylock ; <i32 (%struct.pthread_mutex_t*)*> [#uses=0]
+@_ZL28__gthrw_pthread_mutex_unlockP15pthread_mutex_t = alias weak i32 (%struct.pthread_mutex_t*)* @pthread_mutex_unlock ; <i32 (%struct.pthread_mutex_t*)*> [#uses=0]
+@_ZL26__gthrw_pthread_mutex_initP15pthread_mutex_tPK19pthread_mutexattr_t = alias weak i32 (%struct.pthread_mutex_t*, %"struct.__gnu_cxx::_ConvertibleConcept<unsigned int,unsigned int>"*)* @pthread_mutex_init ; <i32 (%struct.pthread_mutex_t*, %"struct.__gnu_cxx::_ConvertibleConcept<unsigned int,unsigned int>"*)*> [#uses=0]
+@_ZL26__gthrw_pthread_key_createPjPFvPvE = alias weak i32 (i32*, void (i8*)*)* @pthread_key_create ; <i32 (i32*, void (i8*)*)*> [#uses=0]
+@_ZL26__gthrw_pthread_key_deletej = alias weak i32 (i32)* @pthread_key_delete ; <i32 (i32)*> [#uses=0]
+@_ZL30__gthrw_pthread_mutexattr_initP19pthread_mutexattr_t = alias weak i32 (%"struct.__gnu_cxx::_ConvertibleConcept<unsigned int,unsigned int>"*)* @pthread_mutexattr_init ; <i32 (%"struct.__gnu_cxx::_ConvertibleConcept<unsigned int,unsigned int>"*)*> [#uses=0]
+@_ZL33__gthrw_pthread_mutexattr_settypeP19pthread_mutexattr_ti = alias weak i32 (%"struct.__gnu_cxx::_ConvertibleConcept<unsigned int,unsigned int>"*, i32)* @pthread_mutexattr_settype ; <i32 (%"struct.__gnu_cxx::_ConvertibleConcept<unsigned int,unsigned int>"*, i32)*> [#uses=0]
+@_ZL33__gthrw_pthread_mutexattr_destroyP19pthread_mutexattr_t = alias weak i32 (%"struct.__gnu_cxx::_ConvertibleConcept<unsigned int,unsigned int>"*)* @pthread_mutexattr_destroy ; <i32 (%"struct.__gnu_cxx::_ConvertibleConcept<unsigned int,unsigned int>"*)*> [#uses=0]
+
+define weak void @_ZN9__gnu_cxx26__aux_require_boolean_exprIbEEvRKT_(i8* %__t) {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !0)
+  tail call void @llvm.dbg.stoppoint(i32 240, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !0)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_19_ConvertibleConceptIjjEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !8)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !8)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_21_InputIteratorConceptIPcEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !11)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !11)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_21_InputIteratorConceptIPKcEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !12)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !12)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_21_InputIteratorConceptIPwEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !13)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !13)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_21_InputIteratorConceptIPKwEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !14)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !14)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_26_LessThanComparableConceptIPwEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !15)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !15)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_26_LessThanComparableConceptIPcEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !16)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !16)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_26_LessThanComparableConceptIiEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !17)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !17)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_26_LessThanComparableConceptIlEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !18)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !18)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_26_LessThanComparableConceptIxEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !19)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !19)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_26_LessThanComparableConceptIjEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !20)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !20)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_22_OutputIteratorConceptISt19ostreambuf_iteratorIcSt11char_traitsIcEEcEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !21)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !21)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_22_OutputIteratorConceptISt19ostreambuf_iteratorIwSt11char_traitsIwEEwEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !22)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !22)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_28_RandomAccessIteratorConceptIPcEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !23)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !23)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_28_RandomAccessIteratorConceptIPKcEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !24)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !24)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_28_RandomAccessIteratorConceptINS_17__normal_iteratorIPKcSsEEEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !25)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !25)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_28_RandomAccessIteratorConceptINS_17__normal_iteratorIPcSsEEEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !26)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !26)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_28_RandomAccessIteratorConceptINS_17__normal_iteratorIPKwSbIwSt11char_traitsIwESaIwEEEEEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !27)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !27)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_28_RandomAccessIteratorConceptINS_17__normal_iteratorIPwSbIwSt11char_traitsIwESaIwEEEEEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !28)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !28)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_28_RandomAccessIteratorConceptIPwEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !29)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !29)
+  ret void
+}
+
+define weak void @_ZN9__gnu_cxx19__function_requiresINS_28_RandomAccessIteratorConceptIPKwEEEEvv() {
+entry:
+  tail call void @llvm.dbg.func.start(metadata !30)
+  tail call void @llvm.dbg.stoppoint(i32 63, i32 0, metadata !2)
+  tail call void @llvm.dbg.region.end(metadata !30)
+  ret void
+}
+
+declare void @llvm.dbg.func.start(metadata) nounwind readnone
+
+declare void @llvm.dbg.stoppoint(i32, i32, metadata) nounwind readnone
+
+declare void @llvm.dbg.region.end(metadata) nounwind readnone
+
+declare extern_weak i32 @pthread_once(i32*, void ()*)
+
+declare extern_weak i8* @pthread_getspecific(i32)
+
+declare extern_weak i32 @pthread_setspecific(i32, i8*)
+
+declare extern_weak i32 @pthread_create(i64*, %struct.pthread_attr_t*, i8* (i8*)*, i8*)
+
+declare extern_weak i32 @pthread_cancel(i64)
+
+declare extern_weak i32 @pthread_mutex_lock(%struct.pthread_mutex_t*)
+
+declare extern_weak i32 @pthread_mutex_trylock(%struct.pthread_mutex_t*)
+
+declare extern_weak i32 @pthread_mutex_unlock(%struct.pthread_mutex_t*)
+
+declare extern_weak i32 @pthread_mutex_init(%struct.pthread_mutex_t*, %"struct.__gnu_cxx::_ConvertibleConcept<unsigned int,unsigned int>"*)
+
+declare extern_weak i32 @pthread_key_create(i32*, void (i8*)*)
+
+declare extern_weak i32 @pthread_key_delete(i32)
+
+declare extern_weak i32 @pthread_mutexattr_init(%"struct.__gnu_cxx::_ConvertibleConcept<unsigned int,unsigned int>"*)
+
+declare extern_weak i32 @pthread_mutexattr_settype(%"struct.__gnu_cxx::_ConvertibleConcept<unsigned int,unsigned int>"*, i32)
+
+declare extern_weak i32 @pthread_mutexattr_destroy(%"struct.__gnu_cxx::_ConvertibleConcept<unsigned int,unsigned int>"*)
+
+!0 = metadata !{i32 458798, i32 0, metadata !1, metadata !"__aux_require_boolean_expr<bool>", metadata !"__aux_require_boolean_expr<bool>", metadata !"_ZN9__gnu_cxx26__aux_require_boolean_exprIbEEvRKT_", metadata !2, i32 239, metadata !3, i1 false, i1 true}
+!1 = metadata !{i32 458769, i32 0, i32 4, metadata !"concept-inst.cc", metadata !"/home/buildbot/buildslave/llvm-x86_64-linux-selfhost/llvm-gcc.obj/x86_64-unknown-linux-gnu/libstdc++-v3/src/../../../../llvm-gcc.src/libstdc++-v3/src", metadata !"4.2.1 (Based on Apple Inc. build 5649) (LLVM build)", i1 true, i1 true, metadata !"", i32 0}
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+!3 = metadata !{i32 458773, metadata !1, metadata !"", metadata !1, i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !4, i32 0}
+!4 = metadata !{null, metadata !5}
+!5 = metadata !{i32 458768, metadata !1, metadata !"", metadata !1, i32 0, i64 64, i64 64, i64 0, i32 0, metadata !6}
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+!10 = metadata !{null}
+!11 = metadata !{i32 458798, i32 0, metadata !1, metadata !"__function_requires<__gnu_cxx::_InputIteratorConcept<char*> >", metadata !"__function_requires<__gnu_cxx::_InputIteratorConcept<char*> >", metadata !"_ZN9__gnu_cxx19__function_requiresINS_21_InputIteratorConceptIPcEEEEvv", metadata !2, i32 61, metadata !9, i1 false, i1 true}
+!12 = metadata !{i32 458798, i32 0, metadata !1, metadata !"__function_requires<__gnu_cxx::_InputIteratorConcept<const char*> >", metadata !"__function_requires<__gnu_cxx::_InputIteratorConcept<const char*> >", metadata !"_ZN9__gnu_cxx19__function_requiresINS_21_InputIteratorConceptIPKcEEEEvv", metadata !2, i32 61, metadata !9, i1 false, i1 true}
+!13 = metadata !{i32 458798, i32 0, metadata !1, metadata !"__function_requires<__gnu_cxx::_InputIteratorConcept<wchar_t*> >", metadata !"__function_requires<__gnu_cxx::_InputIteratorConcept<wchar_t*> >", metadata !"_ZN9__gnu_cxx19__function_requiresINS_21_InputIteratorConceptIPwEEEEvv", metadata !2, i32 61, metadata !9, i1 false, i1 true}
+!14 = metadata !{i32 458798, i32 0, metadata !1, metadata !"__function_requires<__gnu_cxx::_InputIteratorConcept<const wchar_t*> >", metadata !"__function_requires<__gnu_cxx::_InputIteratorConcept<const wchar_t*> >", metadata !"_ZN9__gnu_cxx19__function_requiresINS_21_InputIteratorConceptIPKwEEEEvv", metadata !2, i32 61, metadata !9, i1 false, i1 true}
+!15 = metadata !{i32 458798, i32 0, metadata !1, metadata !"__function_requires<__gnu_cxx::_LessThanComparableConcept<wchar_t*> >", metadata !"__function_requires<__gnu_cxx::_LessThanComparableConcept<wchar_t*> >", metadata !"_ZN9__gnu_cxx19__function_requiresINS_26_LessThanComparableConceptIPwEEEEvv", metadata !2, i32 61, metadata !9, i1 false, i1 true}
+!16 = metadata !{i32 458798, i32 0, metadata !1, metadata !"__function_requires<__gnu_cxx::_LessThanComparableConcept<char*> >", metadata !"__function_requires<__gnu_cxx::_LessThanComparableConcept<char*> >", metadata !"_ZN9__gnu_cxx19__function_requiresINS_26_LessThanComparableConceptIPcEEEEvv", metadata !2, i32 61, metadata !9, i1 false, i1 true}
+!17 = metadata !{i32 458798, i32 0, metadata !1, metadata !"__function_requires<__gnu_cxx::_LessThanComparableConcept<int> >", metadata !"__function_requires<__gnu_cxx::_LessThanComparableConcept<int> >", metadata !"_ZN9__gnu_cxx19__function_requiresINS_26_LessThanComparableConceptIiEEEEvv", metadata !2, i32 61, metadata !9, i1 false, i1 true}
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+!20 = metadata !{i32 458798, i32 0, metadata !1, metadata !"__function_requires<__gnu_cxx::_LessThanComparableConcept<unsigned int> >", metadata !"__function_requires<__gnu_cxx::_LessThanComparableConcept<unsigned int> >", metadata !"_ZN9__gnu_cxx19__function_requiresINS_26_LessThanComparableConceptIjEEEEvv", metadata !2, i32 61, metadata !9, i1 false, i1 true}
+!21 = metadata !{i32 458798, i32 0, metadata !1, metadata !"__function_requires<__gnu_cxx::_OutputIteratorConcept<std::ostreambuf_iterator<char, std::char_traits<char> >, char> >", metadata !"__function_requires<__gnu_cxx::_OutputIteratorConcept<std::ostreambuf_iterator<char, std::char_traits<char> >, char> >", metadata !"_ZN9__gnu_cxx19__function_requiresINS_22_OutputIteratorConceptISt19ostreambuf_iteratorIcSt11char_traitsIcEEcEEEEvv", metadata !2, i32 61, metadata !9, i1 false, i1 true}
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+!23 = metadata !{i32 458798, i32 0, metadata !1, metadata !"__function_requires<__gnu_cxx::_RandomAccessIteratorConcept<char*> >", metadata !"__function_requires<__gnu_cxx::_RandomAccessIteratorConcept<char*> >", metadata !"_ZN9__gnu_cxx19__function_requiresINS_28_RandomAccessIteratorConceptIPcEEEEvv", metadata !2, i32 61, metadata !9, i1 false, i1 true}
+!24 = metadata !{i32 458798, i32 0, metadata !1, metadata !"__function_requires<__gnu_cxx::_RandomAccessIteratorConcept<const char*> >", metadata !"__function_requires<__gnu_cxx::_RandomAccessIteratorConcept<const char*> >", metadata !"_ZN9__gnu_cxx19__function_requiresINS_28_RandomAccessIteratorConceptIPKcEEEEvv", metadata !2, i32 61, metadata !9, i1 false, i1 true}
+!25 = metadata !{i32 458798, i32 0, metadata !1, metadata !"__function_requires<__gnu_cxx::_RandomAccessIteratorConcept<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >", metadata !"__function_requires<__gnu_cxx::_RandomAccessIteratorConcept<__gnu_cxx::__normal_iterator<const char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >", metadata !"_ZN9__gnu_cxx19__function_requiresINS_28_RandomAccessIteratorConceptINS_17__normal_iteratorIPKcSsEEEEEEvv", metadata !2, i32 61, metadata !9, i1 false, i1 true}
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