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| ; REQUIRES: x86-registered-target
; Test that index-only devirtualization handles and ignores any
; type metadata that could not be summarized (because it was internal
; and could not be promoted due to the fact that the module has
; no external symbols and therefore could not be assigned a unique
; identifier). In this case we should simply not get the type
; metadata summary entries, and no promotion will occur.
; Generate unsplit module with summary for ThinLTO index-based WPD.
; RUN: opt -thinlto-bc -thinlto-split-lto-unit=false -o %t2.o %s
; Check that we don't have module flag when splitting not enabled for ThinLTO,
; and that we generate summary information needed for index-based WPD.
; RUN: llvm-dis -o - %t2.o | FileCheck %s --check-prefix=DIS
; DIS-NOT: typeIdInfo
; DIS-NOT: typeidMetadata
; Legacy PM, Index based WPD
; RUN: llvm-lto2 run %t2.o -save-temps -pass-remarks=. \
; RUN: -o %t3 \
; RUN: -r=%t2.o,test,plx \
; RUN: -r=%t2.o,_ZN1D1mEi,
; RUN: llvm-dis %t3.1.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR
; New PM, Index based WPD
; RUN: llvm-lto2 run %t2.o -save-temps -use-new-pm -pass-remarks=. \
; RUN: -o %t3 \
; RUN: -r=%t2.o,test,plx \
; RUN: -r=%t2.o,_ZN1D1mEi,
; RUN: llvm-dis %t3.1.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-grtev4-linux-gnu"
%struct.D = type { i32 (...)** }
@_ZTV1D = internal constant { [3 x i8*] } { [3 x i8*] [i8* null, i8* undef, i8* bitcast (i32 (%struct.D*, i32)* @_ZN1D1mEi to i8*)] }, !type !3
; CHECK-IR-LABEL: define weak_odr dso_local i32 @test
define weak_odr i32 @test(%struct.D* %obj2, i32 %a) {
entry:
%0 = bitcast %struct.D* %obj2 to i8***
%vtable2 = load i8**, i8*** %0
%1 = bitcast i8** %vtable2 to i8*
%p2 = call i1 @llvm.type.test(i8* %1, metadata !4)
call void @llvm.assume(i1 %p2)
%2 = bitcast i8** %vtable2 to i32 (%struct.D*, i32)**
%fptr33 = load i32 (%struct.D*, i32)*, i32 (%struct.D*, i32)** %2, align 8
; Check that the call was not devirtualized.
; CHECK-IR: %call4 = tail call i32 %fptr33
%call4 = tail call i32 %fptr33(%struct.D* nonnull %obj2, i32 0)
ret i32 %call4
}
; CHECK-IR-LABEL: ret i32
; CHECK-IR-LABEL: }
declare i1 @llvm.type.test(i8*, metadata)
declare void @llvm.assume(i1)
declare i32 @_ZN1D1mEi(%struct.D* %this, i32 %a)
!3 = !{i64 16, !4}
!4 = distinct !{}
|