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747d0ec13b
Fix test changes added in r335760. Even though we are invoking llvm-lto2 in single threaded mode, the order of processing the modules in the backend is apparently not deterministic. Handle the expected debug messages in any order. (The determinism would be good to fix, but not related to this change.) This also undoes the change I made in r335764 to help debug this. llvm-svn: 335766
153 lines
5.6 KiB
LLVM
153 lines
5.6 KiB
LLVM
; Require asserts for -debug-only
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; REQUIRES: asserts
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; RUN: opt -module-summary %s -o %t1.bc
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; RUN: opt -module-summary %p/Inputs/deadstrip.ll -o %t2.bc
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; RUN: llvm-lto -thinlto-action=thinlink -o %t.index.bc %t1.bc %t2.bc
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; 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
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; 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
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; RUN: llvm-lto -exported-symbol=_main -thinlto-action=run %t1.bc %t2.bc
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; RUN: llvm-nm %t1.bc.thinlto.o | FileCheck %s --check-prefix=CHECK-NM
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; RUN: llvm-lto2 run %t1.bc %t2.bc -o %t.out -save-temps \
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; RUN: -r %t1.bc,_main,plx \
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; RUN: -r %t1.bc,_bar,pl \
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; RUN: -r %t1.bc,_dead_func,pl \
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; RUN: -r %t1.bc,_baz,l \
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; RUN: -r %t1.bc,_boo,l \
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; RUN: -r %t1.bc,_live_available_externally_func,l \
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; RUN: -r %t2.bc,_baz,pl \
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; RUN: -r %t2.bc,_boo,pl \
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; RUN: -r %t2.bc,_dead_func,l \
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; RUN: -r %t2.bc,_another_dead_func,pl \
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; RUN: -thinlto-threads=1 \
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; RUN: -debug-only=function-import 2>&1 | FileCheck %s --check-prefix=DEBUG
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; RUN: llvm-dis < %t.out.1.3.import.bc | FileCheck %s --check-prefix=LTO2
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; RUN: llvm-dis < %t.out.2.3.import.bc | FileCheck %s --check-prefix=LTO2-CHECK2
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; RUN: llvm-nm %t.out.1 | FileCheck %s --check-prefix=CHECK2-NM
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; RUN: llvm-bcanalyzer -dump %t.out.index.bc | FileCheck %s --check-prefix=COMBINED
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; Live, NotEligibleForImport, dso_local, Internal
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; COMBINED-DAG: <COMBINED {{.*}} op2=119
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; Live, dso_local, Internal
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; COMBINED-DAG: <COMBINED {{.*}} op2=103
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; Live, Local, AvailableExternally
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; COMBINED-DAG: <COMBINED {{.*}} op2=97
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; Live, Local, External
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; COMBINED-DAG: <COMBINED {{.*}} op2=96
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; COMBINED-DAG: <COMBINED {{.*}} op2=96
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; COMBINED-DAG: <COMBINED {{.*}} op2=96
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; Local, (Dead)
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; COMBINED-DAG: <COMBINED {{.*}} op2=64
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; COMBINED-DAG: <COMBINED {{.*}} op2=64
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; COMBINED-DAG: <COMBINED {{.*}} op2=64
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; Dead-stripping on the index allows to internalize these,
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; and limit the import of @baz thanks to early pruning.
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; CHECK-NOT: available_externally {{.*}} @baz()
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; CHECK: @llvm.global_ctors =
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; CHECK: define internal void @_GLOBAL__I_a()
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; CHECK: define internal void @bar() {
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; CHECK: define internal void @bar_internal()
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; CHECK: define internal void @dead_func() {
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; CHECK-NOT: available_externally {{.*}} @baz()
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; LTO2-NOT: available_externally {{.*}} @baz()
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; LTO2: @llvm.global_ctors =
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; LTO2: define internal void @_GLOBAL__I_a()
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; LTO2: define internal void @bar() {
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; LTO2: define internal void @bar_internal()
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; LTO2-NOT: @dead_func()
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; LTO2-NOT: available_externally {{.*}} @baz()
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; Make sure we didn't internalize @boo, which is reachable via
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; llvm.global_ctors
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; CHECK2: define void @boo()
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; LTO2-CHECK2: define dso_local void @boo()
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; We should have eventually removed @baz since it was internalized and unused
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; CHECK2-NM-NOT: _baz
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; The final binary should not contain any of the dead functions,
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; only main is expected because bar is expected to be inlined and stripped out.
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; CHECK-NM-NOT: bar
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; CHECK-NM-NOT: dead
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; CHECK-NM: T _main
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; CHECK-NM-NOT: bar
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; CHECK-NM-NOT: dead
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; DEBUG-DAG: Live root: 2412314959268824392 (llvm.global_ctors)
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; DEBUG-DAG: Live root: 15822663052811949562 (main)
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; DEBUG-DAG: Ignores Dead GUID: 7342339837106705152 (dead_func)
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; DEBUG-DAG: Ignores Dead GUID: 7546896869197086323 (baz)
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; DEBUG-DAG: Initialize import for 15611644523426561710 (boo)
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; DEBUG-DAG: Ignores Dead GUID: 2384416018110111308 (another_dead_func)
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; Next test the case where Inputs/deadstrip.ll does not get a module index,
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; which will cause it to be handled by regular LTO in the new LTO API.
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; In that case there are uses of @dead_func in the regular LTO partition
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; and it shouldn't be internalized.
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; RUN: opt %p/Inputs/deadstrip.ll -o %t3.bc
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; RUN: llvm-lto2 run %t1.bc %t3.bc -o %t4.out -save-temps \
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; RUN: -r %t1.bc,_main,plx \
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; RUN: -r %t1.bc,_bar,pl \
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; RUN: -r %t1.bc,_dead_func,pl \
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; RUN: -r %t1.bc,_baz,l \
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; RUN: -r %t1.bc,_boo,l \
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; RUN: -r %t1.bc,_live_available_externally_func,l \
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; RUN: -r %t3.bc,_baz,pl \
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; RUN: -r %t3.bc,_boo,pl \
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; RUN: -r %t3.bc,_dead_func,l \
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; RUN: -r %t3.bc,_another_dead_func,pl
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; RUN: llvm-dis < %t4.out.1.3.import.bc | FileCheck %s --check-prefix=CHECK-NOTDEAD
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; RUN: llvm-nm %t4.out.0 | FileCheck %s --check-prefix=CHECK-NM-NOTDEAD
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; We can't internalize @dead_func because of the use in the regular LTO
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; partition.
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; CHECK-NOTDEAD: define dso_local void @dead_func()
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; We also can't eliminate @baz because it is in the regular LTO partition
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; and called from @dead_func.
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; CHECK-NM-NOTDEAD: T _baz
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.11.0"
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@llvm.global_ctors = appending global [1 x { i32, void ()* }] [{ i32, void ()* } { i32 65535, void ()* @_GLOBAL__I_a }]
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declare void @baz()
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declare void @boo()
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define internal void @_GLOBAL__I_a() #1 section "__TEXT,__StaticInit,regular,pure_instructions" {
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entry:
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call void @boo()
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ret void
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}
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define void @bar() {
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ret void
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}
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define internal void @bar_internal() {
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ret void
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}
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define void @dead_func() {
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call void @bar()
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call void @baz()
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call void @bar_internal()
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ret void
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}
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define available_externally void @live_available_externally_func() {
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ret void
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}
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define void @main() {
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call void @bar()
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call void @bar_internal()
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call void @live_available_externally_func()
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ret void
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}
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