forked from OSchip/llvm-project
153 lines
5.6 KiB
LLVM
153 lines
5.6 KiB
LLVM
; Require asserts for -debug-only
|
|
; REQUIRES: asserts
|
|
|
|
; RUN: opt -module-summary %s -o %t1.bc
|
|
; RUN: opt -module-summary %p/Inputs/deadstrip.ll -o %t2.bc
|
|
; RUN: llvm-lto -thinlto-action=thinlink -o %t.index.bc %t1.bc %t2.bc
|
|
|
|
; RUN: llvm-lto -exported-symbol=_main -thinlto-action=promote %t1.bc -thinlto-index=%t.index.bc -o - | llvm-lto -exported-symbol=_main -thinlto-action=internalize -thinlto-index %t.index.bc -thinlto-module-id=%t1.bc - -o - | llvm-dis -o - | FileCheck %s
|
|
; RUN: llvm-lto -exported-symbol=_main -thinlto-action=promote %t2.bc -thinlto-index=%t.index.bc -o - | llvm-lto -exported-symbol=_main -thinlto-action=internalize -thinlto-index %t.index.bc -thinlto-module-id=%t2.bc - -o - | llvm-dis -o - | FileCheck %s --check-prefix=CHECK2
|
|
|
|
; RUN: llvm-lto -exported-symbol=_main -thinlto-action=run %t1.bc %t2.bc
|
|
; RUN: llvm-nm %t1.bc.thinlto.o | FileCheck %s --check-prefix=CHECK-NM
|
|
|
|
; RUN: llvm-lto2 run %t1.bc %t2.bc -o %t.out -save-temps \
|
|
; RUN: -r %t1.bc,_main,plx \
|
|
; RUN: -r %t1.bc,_bar,pl \
|
|
; RUN: -r %t1.bc,_dead_func,pl \
|
|
; RUN: -r %t1.bc,_baz,l \
|
|
; RUN: -r %t1.bc,_boo,l \
|
|
; RUN: -r %t1.bc,_live_available_externally_func,l \
|
|
; RUN: -r %t2.bc,_baz,pl \
|
|
; RUN: -r %t2.bc,_boo,pl \
|
|
; RUN: -r %t2.bc,_dead_func,l \
|
|
; RUN: -r %t2.bc,_another_dead_func,pl \
|
|
; RUN: -thinlto-threads=1 \
|
|
; RUN: -debug-only=function-import 2>&1 | FileCheck %s --check-prefix=DEBUG
|
|
; RUN: llvm-dis < %t.out.1.3.import.bc | FileCheck %s --check-prefix=LTO2
|
|
; RUN: llvm-dis < %t.out.2.3.import.bc | FileCheck %s --check-prefix=LTO2-CHECK2
|
|
; RUN: llvm-nm %t.out.1 | FileCheck %s --check-prefix=CHECK2-NM
|
|
|
|
; RUN: llvm-bcanalyzer -dump %t.out.index.bc | FileCheck %s --check-prefix=COMBINED
|
|
; Live, NotEligibleForImport, dso_local, Internal
|
|
; COMBINED-DAG: <COMBINED {{.*}} op2=119
|
|
; Live, dso_local, Internal
|
|
; COMBINED-DAG: <COMBINED {{.*}} op2=103
|
|
; Live, Local, AvailableExternally
|
|
; COMBINED-DAG: <COMBINED {{.*}} op2=97
|
|
; Live, Local, External
|
|
; COMBINED-DAG: <COMBINED {{.*}} op2=96
|
|
; COMBINED-DAG: <COMBINED {{.*}} op2=96
|
|
; COMBINED-DAG: <COMBINED {{.*}} op2=96
|
|
; Local, (Dead)
|
|
; COMBINED-DAG: <COMBINED {{.*}} op2=64
|
|
; COMBINED-DAG: <COMBINED {{.*}} op2=64
|
|
; COMBINED-DAG: <COMBINED {{.*}} op2=64
|
|
|
|
; Dead-stripping on the index allows to internalize these,
|
|
; and limit the import of @baz thanks to early pruning.
|
|
; CHECK-NOT: available_externally {{.*}} @baz()
|
|
; CHECK: @llvm.global_ctors =
|
|
; CHECK: define internal void @_GLOBAL__I_a()
|
|
; CHECK: define internal void @bar() {
|
|
; CHECK: define internal void @bar_internal()
|
|
; CHECK: define internal void @dead_func() {
|
|
; CHECK-NOT: available_externally {{.*}} @baz()
|
|
; LTO2-NOT: available_externally {{.*}} @baz()
|
|
; LTO2: @llvm.global_ctors =
|
|
; LTO2: define internal void @_GLOBAL__I_a()
|
|
; LTO2: define internal void @bar() {
|
|
; LTO2: define internal void @bar_internal()
|
|
; LTO2-NOT: @dead_func()
|
|
; LTO2-NOT: available_externally {{.*}} @baz()
|
|
|
|
; Make sure we didn't internalize @boo, which is reachable via
|
|
; llvm.global_ctors
|
|
; CHECK2: define void @boo()
|
|
; LTO2-CHECK2: define dso_local void @boo()
|
|
; We should have eventually removed @baz since it was internalized and unused
|
|
; CHECK2-NM-NOT: _baz
|
|
|
|
; The final binary should not contain any of the dead functions,
|
|
; only main is expected because bar is expected to be inlined and stripped out.
|
|
; CHECK-NM-NOT: bar
|
|
; CHECK-NM-NOT: dead
|
|
; CHECK-NM: T _main
|
|
; CHECK-NM-NOT: bar
|
|
; CHECK-NM-NOT: dead
|
|
|
|
; DEBUG-DAG: Live root: 2412314959268824392 (llvm.global_ctors)
|
|
; DEBUG-DAG: Live root: 15822663052811949562 (main)
|
|
; DEBUG-DAG: Ignores Dead GUID: 7342339837106705152 (dead_func)
|
|
; DEBUG-DAG: Ignores Dead GUID: 7546896869197086323 (baz)
|
|
; DEBUG-DAG: Initialize import for 15611644523426561710 (boo)
|
|
; DEBUG-DAG: Ignores Dead GUID: 2384416018110111308 (another_dead_func)
|
|
|
|
; Next test the case where Inputs/deadstrip.ll does not get a module index,
|
|
; which will cause it to be handled by regular LTO in the new LTO API.
|
|
; In that case there are uses of @dead_func in the regular LTO partition
|
|
; and it shouldn't be internalized.
|
|
; RUN: opt %p/Inputs/deadstrip.ll -o %t3.bc
|
|
; RUN: llvm-lto2 run %t1.bc %t3.bc -o %t4.out -save-temps \
|
|
; RUN: -r %t1.bc,_main,plx \
|
|
; RUN: -r %t1.bc,_bar,pl \
|
|
; RUN: -r %t1.bc,_dead_func,pl \
|
|
; RUN: -r %t1.bc,_baz,l \
|
|
; RUN: -r %t1.bc,_boo,l \
|
|
; RUN: -r %t1.bc,_live_available_externally_func,l \
|
|
; RUN: -r %t3.bc,_baz,pl \
|
|
; RUN: -r %t3.bc,_boo,pl \
|
|
; RUN: -r %t3.bc,_dead_func,l \
|
|
; RUN: -r %t3.bc,_another_dead_func,pl
|
|
; RUN: llvm-dis < %t4.out.1.3.import.bc | FileCheck %s --check-prefix=CHECK-NOTDEAD
|
|
; RUN: llvm-nm %t4.out.0 | FileCheck %s --check-prefix=CHECK-NM-NOTDEAD
|
|
|
|
; We can't internalize @dead_func because of the use in the regular LTO
|
|
; partition.
|
|
; CHECK-NOTDEAD: define dso_local void @dead_func()
|
|
; We also can't eliminate @baz because it is in the regular LTO partition
|
|
; and called from @dead_func.
|
|
; CHECK-NM-NOTDEAD: T _baz
|
|
|
|
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.11.0"
|
|
|
|
|
|
@llvm.global_ctors = appending global [1 x { i32, void ()* }] [{ i32, void ()* } { i32 65535, void ()* @_GLOBAL__I_a }]
|
|
|
|
declare void @baz()
|
|
|
|
declare void @boo()
|
|
|
|
define internal void @_GLOBAL__I_a() #1 section "__TEXT,__StaticInit,regular,pure_instructions" {
|
|
entry:
|
|
call void @boo()
|
|
ret void
|
|
}
|
|
|
|
define void @bar() {
|
|
ret void
|
|
}
|
|
|
|
define internal void @bar_internal() {
|
|
ret void
|
|
}
|
|
|
|
define void @dead_func() {
|
|
call void @bar()
|
|
call void @baz()
|
|
call void @bar_internal()
|
|
ret void
|
|
}
|
|
|
|
define available_externally void @live_available_externally_func() {
|
|
ret void
|
|
}
|
|
|
|
define void @main() {
|
|
call void @bar()
|
|
call void @bar_internal()
|
|
call void @live_available_externally_func()
|
|
ret void
|
|
}
|