llvm-6502/test/Transforms/GVN/2009-03-10-PREOnVoid.ll
Rafael Espindola d57120551f Use "weak alias" instead of "alias weak"
Before this patch we had

@a = weak global ...
but
@b = alias weak ...

The patch changes aliases to look more like global variables.

Looking at some really old code suggests that the reason was that the old
bison based parser had a reduction for alias linkages and another one for
global variable linkages. Putting the alias first avoided the reduce/reduce
conflict.

The days of the old .ll parser are long gone. The new one parses just "linkage"
and a later check is responsible for deciding if a linkage is valid in a
given context.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214355 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-30 22:51:54 +00:00

111 lines
6.6 KiB
LLVM

; RUN: opt < %s -gvn -disable-output
; PR3775
; ModuleID = 'bugpoint-reduced-simplified.bc'
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"
target triple = "i386-pc-linux-gnu"
%llvm.dbg.anchor.type = type { i32, i32 }
%"struct.__gnu_cxx::hash<void*>" = type <{ i8 }>
%struct.__sched_param = type { i32 }
%struct._pthread_descr_struct = type opaque
%struct.pthread_attr_t = type { i32, i32, %struct.__sched_param, i32, i32, i32, i32, i8*, i32 }
%struct.pthread_mutex_t = type { i32, i32, %struct._pthread_descr_struct*, i32, %llvm.dbg.anchor.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> > > > >" = 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>" }
%"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 }
%"struct.std::_Rb_tree_iterator<std::pair<void* const, std::vector<ShadowInfo, std::allocator<ShadowInfo> > > >" = type { %"struct.std::_Rb_tree_node_base"* }
%"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"* }
%"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 }
%"struct.std::pair<void* const,void*>" = type { i8*, i8* }
@_ZL20__gthrw_pthread_oncePiPFvvE = weak alias i32 (i32*, void ()*)* @pthread_once ; <i32 (i32*, void ()*)*> [#uses=0]
@_ZL27__gthrw_pthread_getspecificj = weak alias i8* (i32)* @pthread_getspecific ; <i8* (i32)*> [#uses=0]
@_ZL27__gthrw_pthread_setspecificjPKv = weak alias i32 (i32, i8*)* @pthread_setspecific ; <i32 (i32, i8*)*> [#uses=0]
@_ZL22__gthrw_pthread_createPmPK16__pthread_attr_sPFPvS3_ES3_ = weak alias i32 (i32*, %struct.pthread_attr_t*, i8* (i8*)*, i8*)* @pthread_create ; <i32 (i32*, %struct.pthread_attr_t*, i8* (i8*)*, i8*)*> [#uses=0]
@_ZL22__gthrw_pthread_cancelm = weak alias i32 (i32)* @pthread_cancel ; <i32 (i32)*> [#uses=0]
@_ZL26__gthrw_pthread_mutex_lockP15pthread_mutex_t = weak alias i32 (%struct.pthread_mutex_t*)* @pthread_mutex_lock ; <i32 (%struct.pthread_mutex_t*)*> [#uses=0]
@_ZL29__gthrw_pthread_mutex_trylockP15pthread_mutex_t = weak alias i32 (%struct.pthread_mutex_t*)* @pthread_mutex_trylock ; <i32 (%struct.pthread_mutex_t*)*> [#uses=0]
@_ZL28__gthrw_pthread_mutex_unlockP15pthread_mutex_t = weak alias i32 (%struct.pthread_mutex_t*)* @pthread_mutex_unlock ; <i32 (%struct.pthread_mutex_t*)*> [#uses=0]
@_ZL26__gthrw_pthread_mutex_initP15pthread_mutex_tPK19pthread_mutexattr_t = weak alias i32 (%struct.pthread_mutex_t*, %struct.__sched_param*)* @pthread_mutex_init ; <i32 (%struct.pthread_mutex_t*, %struct.__sched_param*)*> [#uses=0]
@_ZL26__gthrw_pthread_key_createPjPFvPvE = weak alias i32 (i32*, void (i8*)*)* @pthread_key_create ; <i32 (i32*, void (i8*)*)*> [#uses=0]
@_ZL26__gthrw_pthread_key_deletej = weak alias i32 (i32)* @pthread_key_delete ; <i32 (i32)*> [#uses=0]
@_ZL30__gthrw_pthread_mutexattr_initP19pthread_mutexattr_t = weak alias i32 (%struct.__sched_param*)* @pthread_mutexattr_init ; <i32 (%struct.__sched_param*)*> [#uses=0]
@_ZL33__gthrw_pthread_mutexattr_settypeP19pthread_mutexattr_ti = weak alias i32 (%struct.__sched_param*, i32)* @pthread_mutexattr_settype ; <i32 (%struct.__sched_param*, i32)*> [#uses=0]
@_ZL33__gthrw_pthread_mutexattr_destroyP19pthread_mutexattr_t = weak alias i32 (%struct.__sched_param*)* @pthread_mutexattr_destroy ; <i32 (%struct.__sched_param*)*> [#uses=0]
declare fastcc void @_ZNSt10_Select1stISt4pairIKPvS1_EEC1Ev() nounwind readnone
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 {
entry:
br i1 false, label %bb7, label %bb
bb: ; preds = %bb, %entry
br i1 false, label %bb5, label %bb
bb5: ; preds = %bb
call fastcc void @_ZNSt10_Select1stISt4pairIKPvS1_EEC1Ev() nounwind
br i1 false, label %bb11, label %bb7
bb7: ; preds = %bb5, %entry
br label %bb11
bb11: ; preds = %bb7, %bb5
call fastcc void @_ZNSt10_Select1stISt4pairIKPvS1_EEC1Ev() nounwind
unreachable
}
define i32 @pthread_once(i32*, void ()*) {
ret i32 0
}
define i8* @pthread_getspecific(i32) {
ret i8* null
}
define i32 @pthread_setspecific(i32, i8*) {
ret i32 0
}
define i32 @pthread_create(i32*, %struct.pthread_attr_t*, i8* (i8*)*, i8*) {
ret i32 0
}
define i32 @pthread_cancel(i32) {
ret i32 0
}
define i32 @pthread_mutex_lock(%struct.pthread_mutex_t*) {
ret i32 0
}
define i32 @pthread_mutex_trylock(%struct.pthread_mutex_t*) {
ret i32 0
}
define i32 @pthread_mutex_unlock(%struct.pthread_mutex_t*) {
ret i32 0
}
define i32 @pthread_mutex_init(%struct.pthread_mutex_t*, %struct.__sched_param*) {
ret i32 0
}
define i32 @pthread_key_create(i32*, void (i8*)*) {
ret i32 0
}
define i32 @pthread_key_delete(i32) {
ret i32 0
}
define i32 @pthread_mutexattr_init(%struct.__sched_param*) {
ret i32 0
}
define i32 @pthread_mutexattr_settype(%struct.__sched_param*, i32) {
ret i32 0
}
define i32 @pthread_mutexattr_destroy(%struct.__sched_param*) {
ret i32 0
}