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d7c9485243
Summary: This is the first step in also serializing the index out to LLVM assembly. The per-module summary written to bitcode is moved out of the bitcode writer and to a new analysis pass (ModuleSummaryIndexWrapperPass). The pass itself uses a new builder class to compute index, and the builder class is used directly in places where we don't have a pass manager (e.g. llvm-as). Because we are computing summaries outside of the bitcode writer, we no longer can use value ids created by the bitcode writer's ValueEnumerator. This required changing the reference graph edge type to use a new ValueInfo class holding a union between a GUID (combined index) and Value* (permodule index). The Value* are converted to the appropriate value ID during bitcode writing. Also, this enables removal of the BitWriter library's dependence on the Analysis library that was previously required for the summary computation. Reviewers: joker.eph Subscribers: joker.eph, llvm-commits Differential Revision: http://reviews.llvm.org/D18763 llvm-svn: 265941
125 lines
4.8 KiB
LLVM
125 lines
4.8 KiB
LLVM
; Do setup work for all below tests: generate bitcode and combined index
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; RUN: llvm-as -module-summary %s -o %t.bc
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; RUN: llvm-as -module-summary %p/Inputs/funcimport.ll -o %t2.bc
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; RUN: llvm-lto -thinlto -print-summary-global-ids -o %t3 %t.bc %t2.bc 2>&1 | FileCheck %s --check-prefix=GUID
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; Do the import now
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; RUN: opt -function-import -stats -print-imports -summary-file %t3.thinlto.bc %t.bc -S 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=INSTLIMDEF
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; "-stats" requires +Asserts.
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; REQUIRES: asserts
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; Test import with smaller instruction limit
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; RUN: opt -function-import -summary-file %t3.thinlto.bc %t.bc -import-instr-limit=5 -S | FileCheck %s --check-prefix=CHECK --check-prefix=INSTLIM5
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; INSTLIM5-NOT: @staticfunc.llvm.2
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define i32 @main() #0 {
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entry:
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call void (...) @weakalias()
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call void (...) @analias()
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call void (...) @linkoncealias()
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%call = call i32 (...) @referencestatics()
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%call1 = call i32 (...) @referenceglobals()
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%call2 = call i32 (...) @referencecommon()
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call void (...) @setfuncptr()
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call void (...) @callfuncptr()
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call void (...) @weakfunc()
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ret i32 0
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}
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; Won't import weak alias
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; CHECK-DAG: declare void @weakalias
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declare void @weakalias(...) #1
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; Cannot create an alias to available_externally
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; CHECK-DAG: declare void @analias
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declare void @analias(...) #1
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; FIXME: Add this checking back when follow on fix to add alias summary
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; records is committed.
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; Aliases import the aliasee function
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declare void @linkoncealias(...) #1
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; INSTLIMDEF-DAG: Import referencestatics
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; INSTLIMDEF-DAG: define available_externally i32 @referencestatics(i32 %i)
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; INSTLIM5-DAG: declare i32 @referencestatics(...)
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declare i32 @referencestatics(...) #1
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; The import of referencestatics will expose call to staticfunc that
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; should in turn be imported as a promoted/renamed and hidden function.
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; Ensure that the call is to the properly-renamed function.
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; INSTLIMDEF-DAG: Import staticfunc
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; INSTLIMDEF-DAG: %call = call i32 @staticfunc.llvm.2()
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; INSTLIMDEF-DAG: define available_externally hidden i32 @staticfunc.llvm.2()
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; INSTLIMDEF-DAG: Import referenceglobals
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; CHECK-DAG: define available_externally i32 @referenceglobals(i32 %i)
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declare i32 @referenceglobals(...) #1
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; The import of referenceglobals will expose call to globalfunc1 that
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; should in turn be imported.
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; INSTLIMDEF-DAG: Import globalfunc1
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; CHECK-DAG: define available_externally void @globalfunc1()
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; INSTLIMDEF-DAG: Import referencecommon
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; CHECK-DAG: define available_externally i32 @referencecommon(i32 %i)
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declare i32 @referencecommon(...) #1
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; INSTLIMDEF-DAG: Import setfuncptr
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; CHECK-DAG: define available_externally void @setfuncptr()
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declare void @setfuncptr(...) #1
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; INSTLIMDEF-DAG: Import callfuncptr
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; CHECK-DAG: define available_externally void @callfuncptr()
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declare void @callfuncptr(...) #1
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; Ensure that all uses of local variable @P which has used in setfuncptr
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; and callfuncptr are to the same promoted/renamed global.
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; CHECK-DAG: @P.llvm.2 = external hidden global void ()*
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; CHECK-DAG: %0 = load void ()*, void ()** @P.llvm.2,
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; CHECK-DAG: store void ()* @staticfunc2.llvm.2, void ()** @P.llvm.2,
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; Won't import weak func
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; CHECK-DAG: declare void @weakfunc(...)
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declare void @weakfunc(...) #1
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; INSTLIMDEF-DAG: Import funcwithpersonality
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; INSTLIMDEF-DAG: define available_externally hidden void @funcwithpersonality.llvm.2() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; INSTLIM5-DAG: declare hidden void @funcwithpersonality.llvm.2()
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; INSTLIMDEF-DAG: Import globalfunc2
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; INSTLIMDEF-DAG: 9 function-import - Number of functions imported
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; The actual GUID values will depend on path to test.
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; GUID-DAG: GUID {{.*}} is weakalias
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; GUID-DAG: GUID {{.*}} is referenceglobals
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; GUID-DAG: GUID {{.*}} is weakfunc
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; GUID-DAG: GUID {{.*}} is main
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; GUID-DAG: GUID {{.*}} is referencecommon
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; GUID-DAG: GUID {{.*}} is analias
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; GUID-DAG: GUID {{.*}} is referencestatics
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; GUID-DAG: GUID {{.*}} is linkoncealias
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; GUID-DAG: GUID {{.*}} is setfuncptr
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; GUID-DAG: GUID {{.*}} is callfuncptr
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; GUID-DAG: GUID {{.*}} is funcwithpersonality
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; GUID-DAG: GUID {{.*}} is setfuncptr
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; GUID-DAG: GUID {{.*}} is staticfunc2
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; GUID-DAG: GUID {{.*}} is __gxx_personality_v0
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; GUID-DAG: GUID {{.*}} is referencestatics
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; GUID-DAG: GUID {{.*}} is globalfunc1
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; GUID-DAG: GUID {{.*}} is globalfunc2
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; GUID-DAG: GUID {{.*}} is P
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; GUID-DAG: GUID {{.*}} is staticvar
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; GUID-DAG: GUID {{.*}} is commonvar
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; GUID-DAG: GUID {{.*}} is weakalias
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; GUID-DAG: GUID {{.*}} is staticfunc
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; GUID-DAG: GUID {{.*}} is weakfunc
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; GUID-DAG: GUID {{.*}} is referenceglobals
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; GUID-DAG: GUID {{.*}} is weakvar
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; GUID-DAG: GUID {{.*}} is staticconstvar
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; GUID-DAG: GUID {{.*}} is analias
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; GUID-DAG: GUID {{.*}} is globalvar
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; GUID-DAG: GUID {{.*}} is referencecommon
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; GUID-DAG: GUID {{.*}} is linkoncealias
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; GUID-DAG: GUID {{.*}} is callfuncptr
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; GUID-DAG: GUID {{.*}} is linkoncefunc
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