2d28f7aa07
To be able to work accurately on the reference graph when taking decision about internalizing, promoting, renaming, etc. We need to have the alias information explicit. Differential Revision: http://reviews.llvm.org/D18836 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 266517
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: opt -module-summary %s -o %t.bc
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; RUN: opt -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.
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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.
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; INSTLIMDEF-DAG: define available_externally hidden i32 @staticfunc.llvm.
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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.{{.*}} = external hidden global void ()*
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; CHECK-DAG: %0 = load void ()*, void ()** @P.llvm.
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; CHECK-DAG: store void ()* @staticfunc2.llvm.{{.*}}, void ()** @P.llvm.
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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.{{.*}}() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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; INSTLIM5-DAG: declare hidden void @funcwithpersonality.llvm.{{.*}}()
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; INSTLIMDEF-DAG: Import globalfunc2
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; INSTLIMDEF-DAG: 11 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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