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llvm-mirror/test/Transforms/MergeFunc/2011-02-08-RemoveEqual.ll

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When removing a function from the function set and adding it to deferred, we could end up removing a different function than we intended because it was functionally equivalent, then end up with a comparison of a function against itself in the next round of comparisons (the one in the function set and the one on the deferred list). To fix this, I introduce a choice in the form of comparison for ComparableFunctions, either normal or "pointer only" used to find exact Function*'s in lookups. Also add some debugging statements. llvm-svn: 125180
2011-02-09 07:32:02 +01:00
; RUN: opt -mergefunc %s -disable-output
; This used to crash.
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-n8:16:32"
target triple = "i386-pc-linux-gnu"
%"struct.kc::impl_Ccode_option" = type { %"struct.kc::impl_abstract_phylum" }
%"struct.kc::impl_CexpressionDQ" = type { %"struct.kc::impl_Ccode_option", %"struct.kc::impl_Ccode_option"*, %"struct.kc::impl_CexpressionDQ"* }
%"struct.kc::impl_Ctext" = type { %"struct.kc::impl_Ccode_option", i32, %"struct.kc::impl_casestring__Str"*, %"struct.kc::impl_Ctext_elem"*, %"struct.kc::impl_Ctext"* }
%"struct.kc::impl_Ctext_elem" = type { %"struct.kc::impl_abstract_phylum", i32, %"struct.kc::impl_casestring__Str"* }
%"struct.kc::impl_ID" = type { %"struct.kc::impl_abstract_phylum", %"struct.kc::impl_Ccode_option"*, %"struct.kc::impl_casestring__Str"*, i32, %"struct.kc::impl_casestring__Str"* }
%"struct.kc::impl_abstract_phylum" = type { i32 (...)** }
%"struct.kc::impl_ac_abstract_declarator_AcAbsdeclDirdecl" = type { %"struct.kc::impl_Ccode_option", %"struct.kc::impl_Ccode_option"*, %"struct.kc::impl_Ccode_option"* }
%"struct.kc::impl_casestring__Str" = type { %"struct.kc::impl_abstract_phylum", i8* }
%"struct.kc::impl_elem_patternrepresentation" = type { %"struct.kc::impl_abstract_phylum", i32, %"struct.kc::impl_casestring__Str"*, %"struct.kc::impl_ID"* }
%"struct.kc::impl_fileline" = type { %"struct.kc::impl_abstract_phylum", %"struct.kc::impl_casestring__Str"*, i32 }
%"struct.kc::impl_fileline_FileLine" = type { %"struct.kc::impl_fileline" }
%"struct.kc::impl_outmostpatterns" = type { %"struct.kc::impl_Ccode_option", %"struct.kc::impl_elem_patternrepresentation"*, %"struct.kc::impl_outmostpatterns"* }
%"struct.kc::impl_withcaseinfo_Withcaseinfo" = type { %"struct.kc::impl_Ccode_option", %"struct.kc::impl_outmostpatterns"*, %"struct.kc::impl_outmostpatterns"*, %"struct.kc::impl_Ctext"* }
@_ZTVN2kc13impl_filelineE = external constant [13 x i32 (...)*], align 32
@.str = external constant [1 x i8], align 1
@_ZTVN2kc22impl_fileline_FileLineE = external constant [13 x i32 (...)*], align 32
define void @_ZN2kc22impl_fileline_FileLineC2EPNS_20impl_casestring__StrEi(%"struct.kc::impl_fileline_FileLine"* %this, %"struct.kc::impl_casestring__Str"* %_file, i32 %_line) align 2 {
entry:
%this_addr = alloca %"struct.kc::impl_fileline_FileLine"*, align 4
%_file_addr = alloca %"struct.kc::impl_casestring__Str"*, align 4
%_line_addr = alloca i32, align 4
%save_filt.150 = alloca i32
%save_eptr.149 = alloca i8*
%iftmp.99 = alloca %"struct.kc::impl_casestring__Str"*
%eh_exception = alloca i8*
%eh_selector = alloca i32
%"alloca point" = bitcast i32 0 to i32
store %"struct.kc::impl_fileline_FileLine"* %this, %"struct.kc::impl_fileline_FileLine"** %this_addr
store %"struct.kc::impl_casestring__Str"* %_file, %"struct.kc::impl_casestring__Str"** %_file_addr
store i32 %_line, i32* %_line_addr
%0 = load %"struct.kc::impl_fileline_FileLine"** %this_addr, align 4
%1 = getelementptr inbounds %"struct.kc::impl_fileline_FileLine"* %0, i32 0, i32 0
call void @_ZN2kc13impl_filelineC2Ev() nounwind
%2 = load %"struct.kc::impl_fileline_FileLine"** %this_addr, align 4
%3 = getelementptr inbounds %"struct.kc::impl_fileline_FileLine"* %2, i32 0, i32 0
%4 = getelementptr inbounds %"struct.kc::impl_fileline"* %3, i32 0, i32 0
%5 = getelementptr inbounds %"struct.kc::impl_abstract_phylum"* %4, i32 0, i32 0
store i32 (...)** getelementptr inbounds ([13 x i32 (...)*]* @_ZTVN2kc22impl_fileline_FileLineE, i32 0, i32 2), i32 (...)*** %5, align 4
%6 = load %"struct.kc::impl_casestring__Str"** %_file_addr, align 4
%7 = icmp eq %"struct.kc::impl_casestring__Str"* %6, null
br i1 %7, label %bb, label %bb1
bb: ; preds = %entry
%8 = invoke %"struct.kc::impl_casestring__Str"* @_ZN2kc12mkcasestringEPKci()
to label %invcont unwind label %lpad
invcont: ; preds = %bb
store %"struct.kc::impl_casestring__Str"* %8, %"struct.kc::impl_casestring__Str"** %iftmp.99, align 4
br label %bb2
bb1: ; preds = %entry
%9 = load %"struct.kc::impl_casestring__Str"** %_file_addr, align 4
store %"struct.kc::impl_casestring__Str"* %9, %"struct.kc::impl_casestring__Str"** %iftmp.99, align 4
br label %bb2
bb2: ; preds = %bb1, %invcont
%10 = load %"struct.kc::impl_fileline_FileLine"** %this_addr, align 4
%11 = getelementptr inbounds %"struct.kc::impl_fileline_FileLine"* %10, i32 0, i32 0
%12 = getelementptr inbounds %"struct.kc::impl_fileline"* %11, i32 0, i32 1
%13 = load %"struct.kc::impl_casestring__Str"** %iftmp.99, align 4
store %"struct.kc::impl_casestring__Str"* %13, %"struct.kc::impl_casestring__Str"** %12, align 4
%14 = load %"struct.kc::impl_fileline_FileLine"** %this_addr, align 4
%15 = getelementptr inbounds %"struct.kc::impl_fileline_FileLine"* %14, i32 0, i32 0
%16 = getelementptr inbounds %"struct.kc::impl_fileline"* %15, i32 0, i32 2
%17 = load i32* %_line_addr, align 4
store i32 %17, i32* %16, align 4
ret void
lpad: ; preds = %bb
%eh_ptr = call i8* @llvm.eh.exception()
store i8* %eh_ptr, i8** %eh_exception
%eh_ptr4 = load i8** %eh_exception
%eh_select5 = call i32 (i8*, i8*, ...)* @llvm.eh.selector(i8* %eh_ptr4, i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*), i32 0)
store i32 %eh_select5, i32* %eh_selector
%eh_select = load i32* %eh_selector
store i32 %eh_select, i32* %save_filt.150, align 4
%eh_value = load i8** %eh_exception
store i8* %eh_value, i8** %save_eptr.149, align 4
%18 = load %"struct.kc::impl_fileline_FileLine"** %this_addr, align 4
%19 = bitcast %"struct.kc::impl_fileline_FileLine"* %18 to %"struct.kc::impl_fileline"*
call void @_ZN2kc13impl_filelineD2Ev(%"struct.kc::impl_fileline"* %19) nounwind
%20 = load i8** %save_eptr.149, align 4
store i8* %20, i8** %eh_exception, align 4
%21 = load i32* %save_filt.150, align 4
store i32 %21, i32* %eh_selector, align 4
%eh_ptr6 = load i8** %eh_exception
call void @_Unwind_Resume_or_Rethrow()
unreachable
}
declare void @_ZN2kc13impl_filelineC2Ev() nounwind align 2
define void @_ZN2kc13impl_filelineD1Ev(%"struct.kc::impl_fileline"* %this) nounwind align 2 {
entry:
%this_addr = alloca %"struct.kc::impl_fileline"*, align 4
%"alloca point" = bitcast i32 0 to i32
store %"struct.kc::impl_fileline"* %this, %"struct.kc::impl_fileline"** %this_addr
%0 = load %"struct.kc::impl_fileline"** %this_addr, align 4
%1 = getelementptr inbounds %"struct.kc::impl_fileline"* %0, i32 0, i32 0
%2 = getelementptr inbounds %"struct.kc::impl_abstract_phylum"* %1, i32 0, i32 0
store i32 (...)** getelementptr inbounds ([13 x i32 (...)*]* @_ZTVN2kc13impl_filelineE, i32 0, i32 2), i32 (...)*** %2, align 4
%3 = trunc i32 0 to i8
%toBool = icmp ne i8 %3, 0
br i1 %toBool, label %bb1, label %return
bb1: ; preds = %entry
%4 = load %"struct.kc::impl_fileline"** %this_addr, align 4
%5 = bitcast %"struct.kc::impl_fileline"* %4 to i8*
call void @_ZdlPv() nounwind
br label %return
return: ; preds = %bb1, %entry
ret void
}
declare void @_ZdlPv() nounwind
define void @_ZN2kc13impl_filelineD2Ev(%"struct.kc::impl_fileline"* %this) nounwind align 2 {
entry:
%this_addr = alloca %"struct.kc::impl_fileline"*, align 4
%"alloca point" = bitcast i32 0 to i32
store %"struct.kc::impl_fileline"* %this, %"struct.kc::impl_fileline"** %this_addr
%0 = load %"struct.kc::impl_fileline"** %this_addr, align 4
%1 = getelementptr inbounds %"struct.kc::impl_fileline"* %0, i32 0, i32 0
%2 = getelementptr inbounds %"struct.kc::impl_abstract_phylum"* %1, i32 0, i32 0
store i32 (...)** getelementptr inbounds ([13 x i32 (...)*]* @_ZTVN2kc13impl_filelineE, i32 0, i32 2), i32 (...)*** %2, align 4
%3 = trunc i32 0 to i8
%toBool = icmp ne i8 %3, 0
br i1 %toBool, label %bb1, label %return
bb1: ; preds = %entry
%4 = load %"struct.kc::impl_fileline"** %this_addr, align 4
%5 = bitcast %"struct.kc::impl_fileline"* %4 to i8*
call void @_ZdlPv() nounwind
br label %return
return: ; preds = %bb1, %entry
ret void
}
define void @_ZN2kc22impl_fileline_FileLineC1EPNS_20impl_casestring__StrEi(%"struct.kc::impl_fileline_FileLine"* %this, %"struct.kc::impl_casestring__Str"* %_file, i32 %_line) align 2 {
entry:
%this_addr = alloca %"struct.kc::impl_fileline_FileLine"*, align 4
%_file_addr = alloca %"struct.kc::impl_casestring__Str"*, align 4
%_line_addr = alloca i32, align 4
%save_filt.148 = alloca i32
%save_eptr.147 = alloca i8*
%iftmp.99 = alloca %"struct.kc::impl_casestring__Str"*
%eh_exception = alloca i8*
%eh_selector = alloca i32
%"alloca point" = bitcast i32 0 to i32
store %"struct.kc::impl_fileline_FileLine"* %this, %"struct.kc::impl_fileline_FileLine"** %this_addr
store %"struct.kc::impl_casestring__Str"* %_file, %"struct.kc::impl_casestring__Str"** %_file_addr
store i32 %_line, i32* %_line_addr
%0 = load %"struct.kc::impl_fileline_FileLine"** %this_addr, align 4
%1 = getelementptr inbounds %"struct.kc::impl_fileline_FileLine"* %0, i32 0, i32 0
call void @_ZN2kc13impl_filelineC2Ev() nounwind
%2 = load %"struct.kc::impl_fileline_FileLine"** %this_addr, align 4
%3 = getelementptr inbounds %"struct.kc::impl_fileline_FileLine"* %2, i32 0, i32 0
%4 = getelementptr inbounds %"struct.kc::impl_fileline"* %3, i32 0, i32 0
%5 = getelementptr inbounds %"struct.kc::impl_abstract_phylum"* %4, i32 0, i32 0
store i32 (...)** getelementptr inbounds ([13 x i32 (...)*]* @_ZTVN2kc22impl_fileline_FileLineE, i32 0, i32 2), i32 (...)*** %5, align 4
%6 = load %"struct.kc::impl_casestring__Str"** %_file_addr, align 4
%7 = icmp eq %"struct.kc::impl_casestring__Str"* %6, null
br i1 %7, label %bb, label %bb1
bb: ; preds = %entry
%8 = invoke %"struct.kc::impl_casestring__Str"* @_ZN2kc12mkcasestringEPKci()
to label %invcont unwind label %lpad
invcont: ; preds = %bb
store %"struct.kc::impl_casestring__Str"* %8, %"struct.kc::impl_casestring__Str"** %iftmp.99, align 4
br label %bb2
bb1: ; preds = %entry
%9 = load %"struct.kc::impl_casestring__Str"** %_file_addr, align 4
store %"struct.kc::impl_casestring__Str"* %9, %"struct.kc::impl_casestring__Str"** %iftmp.99, align 4
br label %bb2
bb2: ; preds = %bb1, %invcont
%10 = load %"struct.kc::impl_fileline_FileLine"** %this_addr, align 4
%11 = getelementptr inbounds %"struct.kc::impl_fileline_FileLine"* %10, i32 0, i32 0
%12 = getelementptr inbounds %"struct.kc::impl_fileline"* %11, i32 0, i32 1
%13 = load %"struct.kc::impl_casestring__Str"** %iftmp.99, align 4
store %"struct.kc::impl_casestring__Str"* %13, %"struct.kc::impl_casestring__Str"** %12, align 4
%14 = load %"struct.kc::impl_fileline_FileLine"** %this_addr, align 4
%15 = getelementptr inbounds %"struct.kc::impl_fileline_FileLine"* %14, i32 0, i32 0
%16 = getelementptr inbounds %"struct.kc::impl_fileline"* %15, i32 0, i32 2
%17 = load i32* %_line_addr, align 4
store i32 %17, i32* %16, align 4
ret void
lpad: ; preds = %bb
%eh_ptr = call i8* @llvm.eh.exception()
store i8* %eh_ptr, i8** %eh_exception
%eh_ptr4 = load i8** %eh_exception
%eh_select5 = call i32 (i8*, i8*, ...)* @llvm.eh.selector(i8* %eh_ptr4, i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*), i32 0)
store i32 %eh_select5, i32* %eh_selector
%eh_select = load i32* %eh_selector
store i32 %eh_select, i32* %save_filt.148, align 4
%eh_value = load i8** %eh_exception
store i8* %eh_value, i8** %save_eptr.147, align 4
%18 = load %"struct.kc::impl_fileline_FileLine"** %this_addr, align 4
%19 = bitcast %"struct.kc::impl_fileline_FileLine"* %18 to %"struct.kc::impl_fileline"*
call void @_ZN2kc13impl_filelineD2Ev(%"struct.kc::impl_fileline"* %19) nounwind
%20 = load i8** %save_eptr.147, align 4
store i8* %20, i8** %eh_exception, align 4
%21 = load i32* %save_filt.148, align 4
store i32 %21, i32* %eh_selector, align 4
%eh_ptr6 = load i8** %eh_exception
call void @_Unwind_Resume_or_Rethrow()
unreachable
}
declare i8* @llvm.eh.exception() nounwind readonly
declare i32 @llvm.eh.selector(i8*, i8*, ...) nounwind
declare i32 @__gxx_personality_v0(...)
declare void @_Unwind_Resume_or_Rethrow()
define void @_ZN2kc21printer_functor_classC2Ev(%"struct.kc::impl_abstract_phylum"* %this) nounwind align 2 {
entry:
unreachable
}
define %"struct.kc::impl_Ccode_option"* @_ZN2kc11phylum_castIPNS_17impl_withcaseinfoES1_EET_PT0_(%"struct.kc::impl_Ccode_option"* %t) nounwind {
entry:
ret %"struct.kc::impl_Ccode_option"* null
}
define %"struct.kc::impl_abstract_phylum"* @_ZNK2kc43impl_ac_direct_declarator_AcDirectDeclProto9subphylumEi(%"struct.kc::impl_ac_abstract_declarator_AcAbsdeclDirdecl"* %this, i32 %no) nounwind align 2 {
entry:
ret %"struct.kc::impl_abstract_phylum"* undef
}
define void @_ZN2kc30impl_withcaseinfo_WithcaseinfoD0Ev(%"struct.kc::impl_withcaseinfo_Withcaseinfo"* %this) nounwind align 2 {
entry:
unreachable
}
define void @_ZN2kc30impl_withcaseinfo_WithcaseinfoC1EPNS_26impl_patternrepresentationES2_PNS_10impl_CtextE(%"struct.kc::impl_withcaseinfo_Withcaseinfo"* %this, %"struct.kc::impl_outmostpatterns"* %_patternrepresentation_1, %"struct.kc::impl_outmostpatterns"* %_patternrepresentation_2, %"struct.kc::impl_Ctext"* %_Ctext_1) nounwind align 2 {
entry:
unreachable
}
define void @_ZN2kc21impl_rewriteviewsinfoC2EPNS_20impl_rewriteviewinfoEPS0_(%"struct.kc::impl_CexpressionDQ"* %this, %"struct.kc::impl_Ccode_option"* %p1, %"struct.kc::impl_CexpressionDQ"* %p2) nounwind align 2 {
entry:
unreachable
}
define %"struct.kc::impl_Ctext_elem"* @_ZN2kc11phylum_castIPNS_9impl_termENS_20impl_abstract_phylumEEET_PT0_(%"struct.kc::impl_abstract_phylum"* %t) nounwind {
entry:
unreachable
}
define void @_ZN2kc27impl_ac_parameter_type_listD2Ev(%"struct.kc::impl_Ccode_option"* %this) nounwind align 2 {
entry:
ret void
}
define void @_ZN2kc21impl_ac_operator_nameD2Ev(%"struct.kc::impl_Ctext_elem"* %this) nounwind align 2 {
entry:
ret void
}
declare %"struct.kc::impl_casestring__Str"* @_ZN2kc12mkcasestringEPKci()
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