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38048cdb1c
On ELF and COFF an alias is just another name for a position in the file. There is no way to refer to a position in another file, so an alias to undefined is meaningless. MachO currently doesn't support aliases. The spec has a N_INDR, which when implemented will have a different set of restrictions. Adding support for it shouldn't be harder than any other IR extension. For now, having the IR represent what is actually possible with current tools makes it easier to fix the design of GlobalAlias. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203705 91177308-0d34-0410-b5e6-96231b3b80d8
111 lines
6.6 KiB
LLVM
111 lines
6.6 KiB
LLVM
; RUN: opt < %s -gvn -disable-output
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; PR3775
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; ModuleID = 'bugpoint-reduced-simplified.bc'
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
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target triple = "i386-pc-linux-gnu"
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%llvm.dbg.anchor.type = type { i32, i32 }
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%"struct.__gnu_cxx::hash<void*>" = type <{ i8 }>
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%struct.__sched_param = type { i32 }
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%struct._pthread_descr_struct = type opaque
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%struct.pthread_attr_t = type { i32, i32, %struct.__sched_param, i32, i32, i32, i32, i8*, i32 }
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%struct.pthread_mutex_t = type { i32, i32, %struct._pthread_descr_struct*, i32, %llvm.dbg.anchor.type }
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%"struct.std::_Rb_tree<void*,std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > >,std::_Select1st<std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > > >,std::less<void*>,std::allocator<std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > > > >" = type { %"struct.std::_Rb_tree<void*,std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > >,std::_Select1st<std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > > >,std::less<void*>,std::allocator<std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > > > >::_Rb_tree_impl<std::less<void*>,false>" }
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%"struct.std::_Rb_tree<void*,std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > >,std::_Select1st<std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > > >,std::less<void*>,std::allocator<std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > > > >::_Rb_tree_impl<std::less<void*>,false>" = type { %"struct.__gnu_cxx::hash<void*>", %"struct.std::_Rb_tree_node_base", i32 }
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%"struct.std::_Rb_tree_iterator<std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > > >" = type { %"struct.std::_Rb_tree_node_base"* }
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%"struct.std::_Rb_tree_node_base" = type { i32, %"struct.std::_Rb_tree_node_base"*, %"struct.std::_Rb_tree_node_base"*, %"struct.std::_Rb_tree_node_base"* }
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%"struct.std::pair<std::_Rb_tree_iterator<std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > > >,bool>" = type { %"struct.std::_Rb_tree_iterator<std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > > >", i8 }
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%"struct.std::pair<void* const,void*>" = type { i8*, i8* }
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@_ZL20__gthrw_pthread_oncePiPFvvE = alias weak i32 (i32*, void ()*)* @pthread_once ; <i32 (i32*, void ()*)*> [#uses=0]
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@_ZL27__gthrw_pthread_getspecificj = alias weak i8* (i32)* @pthread_getspecific ; <i8* (i32)*> [#uses=0]
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@_ZL27__gthrw_pthread_setspecificjPKv = alias weak i32 (i32, i8*)* @pthread_setspecific ; <i32 (i32, i8*)*> [#uses=0]
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@_ZL22__gthrw_pthread_createPmPK16__pthread_attr_sPFPvS3_ES3_ = alias weak i32 (i32*, %struct.pthread_attr_t*, i8* (i8*)*, i8*)* @pthread_create ; <i32 (i32*, %struct.pthread_attr_t*, i8* (i8*)*, i8*)*> [#uses=0]
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@_ZL22__gthrw_pthread_cancelm = alias weak i32 (i32)* @pthread_cancel ; <i32 (i32)*> [#uses=0]
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@_ZL26__gthrw_pthread_mutex_lockP15pthread_mutex_t = alias weak i32 (%struct.pthread_mutex_t*)* @pthread_mutex_lock ; <i32 (%struct.pthread_mutex_t*)*> [#uses=0]
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@_ZL29__gthrw_pthread_mutex_trylockP15pthread_mutex_t = alias weak i32 (%struct.pthread_mutex_t*)* @pthread_mutex_trylock ; <i32 (%struct.pthread_mutex_t*)*> [#uses=0]
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@_ZL28__gthrw_pthread_mutex_unlockP15pthread_mutex_t = alias weak i32 (%struct.pthread_mutex_t*)* @pthread_mutex_unlock ; <i32 (%struct.pthread_mutex_t*)*> [#uses=0]
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@_ZL26__gthrw_pthread_mutex_initP15pthread_mutex_tPK19pthread_mutexattr_t = alias weak i32 (%struct.pthread_mutex_t*, %struct.__sched_param*)* @pthread_mutex_init ; <i32 (%struct.pthread_mutex_t*, %struct.__sched_param*)*> [#uses=0]
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@_ZL26__gthrw_pthread_key_createPjPFvPvE = alias weak i32 (i32*, void (i8*)*)* @pthread_key_create ; <i32 (i32*, void (i8*)*)*> [#uses=0]
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@_ZL26__gthrw_pthread_key_deletej = alias weak i32 (i32)* @pthread_key_delete ; <i32 (i32)*> [#uses=0]
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@_ZL30__gthrw_pthread_mutexattr_initP19pthread_mutexattr_t = alias weak i32 (%struct.__sched_param*)* @pthread_mutexattr_init ; <i32 (%struct.__sched_param*)*> [#uses=0]
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@_ZL33__gthrw_pthread_mutexattr_settypeP19pthread_mutexattr_ti = alias weak i32 (%struct.__sched_param*, i32)* @pthread_mutexattr_settype ; <i32 (%struct.__sched_param*, i32)*> [#uses=0]
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@_ZL33__gthrw_pthread_mutexattr_destroyP19pthread_mutexattr_t = alias weak i32 (%struct.__sched_param*)* @pthread_mutexattr_destroy ; <i32 (%struct.__sched_param*)*> [#uses=0]
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declare fastcc void @_ZNSt10_Select1stISt4pairIKPvS1_EEC1Ev() nounwind readnone
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define fastcc void @_ZNSt8_Rb_treeIPvSt4pairIKS0_S0_ESt10_Select1stIS3_ESt4lessIS0_ESaIS3_EE16_M_insert_uniqueERKS3_(%"struct.std::pair<std::_Rb_tree_iterator<std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > > >,bool>"* noalias nocapture sret %agg.result, %"struct.std::_Rb_tree<void*,std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > >,std::_Select1st<std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > > >,std::less<void*>,std::allocator<std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > > > >"* %this, %"struct.std::pair<void* const,void*>"* %__v) nounwind {
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entry:
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br i1 false, label %bb7, label %bb
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bb: ; preds = %bb, %entry
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br i1 false, label %bb5, label %bb
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bb5: ; preds = %bb
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call fastcc void @_ZNSt10_Select1stISt4pairIKPvS1_EEC1Ev() nounwind
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br i1 false, label %bb11, label %bb7
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bb7: ; preds = %bb5, %entry
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br label %bb11
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bb11: ; preds = %bb7, %bb5
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call fastcc void @_ZNSt10_Select1stISt4pairIKPvS1_EEC1Ev() nounwind
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unreachable
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}
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define i32 @pthread_once(i32*, void ()*) {
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ret i32 0
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}
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define i8* @pthread_getspecific(i32) {
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ret i8* null
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}
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define i32 @pthread_setspecific(i32, i8*) {
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ret i32 0
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}
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define i32 @pthread_create(i32*, %struct.pthread_attr_t*, i8* (i8*)*, i8*) {
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ret i32 0
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}
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define i32 @pthread_cancel(i32) {
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ret i32 0
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}
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define i32 @pthread_mutex_lock(%struct.pthread_mutex_t*) {
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ret i32 0
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}
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define i32 @pthread_mutex_trylock(%struct.pthread_mutex_t*) {
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ret i32 0
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}
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define i32 @pthread_mutex_unlock(%struct.pthread_mutex_t*) {
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ret i32 0
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}
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define i32 @pthread_mutex_init(%struct.pthread_mutex_t*, %struct.__sched_param*) {
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ret i32 0
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}
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define i32 @pthread_key_create(i32*, void (i8*)*) {
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ret i32 0
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}
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define i32 @pthread_key_delete(i32) {
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ret i32 0
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}
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define i32 @pthread_mutexattr_init(%struct.__sched_param*) {
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ret i32 0
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}
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define i32 @pthread_mutexattr_settype(%struct.__sched_param*, i32) {
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ret i32 0
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}
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define i32 @pthread_mutexattr_destroy(%struct.__sched_param*) {
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ret i32 0
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}
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