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1;; Test that pure virtual base is handled correctly.2 3;; Index based WPD4;; Generate unsplit module with summary for ThinLTO index-based WPD.5; RUN: opt --thinlto-bc -o %t1a.o %s6; RUN: llvm-lto2 run %t1a.o -save-temps -pass-remarks=. \7; RUN: -whole-program-visibility \8; RUN: -o %t3a \9; RUN: -r=%t1a.o,_start,plx \10; RUN: -r=%t1a.o,_ZTV1A,p \11; RUN: -r=%t1a.o,_ZTV1B,p \12; RUN: -r=%t1a.o,_ZN1A1fEi,p \13; RUN: -r=%t1a.o,_ZN1A1nEi,p \14; RUN: -r=%t1a.o,_ZN1B1fEi,p \15; RUN: -r=%t1a.o,__cxa_pure_virtual, \16; RUN: 2>&1 | FileCheck %s --check-prefix=REMARK17; RUN: llvm-dis %t3a.1.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR18 19;; Hybrid WPD20;; Generate split module with summary for hybrid Thin/Regular LTO WPD.21; RUN: opt --thinlto-bc --thinlto-split-lto-unit -o %t1b.o %s22; RUN: llvm-lto2 run %t1b.o -save-temps -pass-remarks=. \23; RUN: -whole-program-visibility \24; RUN: -o %t3b \25; RUN: -r=%t1b.o,_start,plx \26; RUN: -r=%t1b.o,_ZTV1A, \27; RUN: -r=%t1b.o,_ZTV1B, \28; RUN: -r=%t1b.o,__cxa_pure_virtual, \29; RUN: -r=%t1b.o,_ZN1A1fEi,p \30; RUN: -r=%t1b.o,_ZN1A1nEi,p \31; RUN: -r=%t1b.o,_ZN1B1fEi,p \32; RUN: -r=%t1b.o,_ZTV1A,p \33; RUN: -r=%t1b.o,_ZTV1B,p \34; RUN: -r=%t1b.o,_ZN1A1nEi, \35; RUN: -r=%t1b.o,_ZN1B1fEi, \36; RUN: -r=%t1b.o,__cxa_pure_virtual, \37; RUN: 2>&1 | FileCheck %s --check-prefix=REMARK38; RUN: llvm-dis %t3b.1.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR39 40;; Regular LTO WPD41; RUN: opt -o %t1c.o %s42; RUN: llvm-lto2 run %t1c.o -save-temps -pass-remarks=. \43; RUN: -whole-program-visibility \44; RUN: -o %t3c \45; RUN: -r=%t1c.o,_start,plx \46; RUN: -r=%t1c.o,_ZTV1A,p \47; RUN: -r=%t1c.o,_ZTV1B,p \48; RUN: -r=%t1c.o,_ZN1A1fEi,p \49; RUN: -r=%t1c.o,_ZN1A1nEi,p \50; RUN: -r=%t1c.o,_ZN1B1fEi,p \51; RUN: -r=%t1c.o,__cxa_pure_virtual, \52; RUN: 2>&1 | FileCheck %s --check-prefix=REMARK53; RUN: llvm-dis %t3c.0.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR54 55; REMARK-DAG: single-impl: devirtualized a call to _ZN1A1nEi56 57target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"58target triple = "x86_64-grtev4-linux-gnu"59 60%struct.A = type { ptr }61%struct.B = type { %struct.A }62 63@_ZTV1A = linkonce_odr unnamed_addr constant { [4 x ptr] } { [4 x ptr] [ptr null, ptr undef, ptr @__cxa_pure_virtual, ptr @__cxa_pure_virtual] }, !type !0, !vcall_visibility !264@_ZTV1B = linkonce_odr unnamed_addr constant { [4 x ptr] } { [4 x ptr] [ptr null, ptr undef, ptr @_ZN1B1fEi, ptr @_ZN1A1nEi] }, !type !0, !type !1, !vcall_visibility !265 66;; Prevent the vtables from being dead code eliminated.67@llvm.used = appending global [2 x ptr] [ ptr @_ZTV1A, ptr @_ZTV1B]68 69; CHECK-IR-LABEL: define dso_local {{(noundef )?}}i32 @_start70define i32 @_start(ptr %obj, i32 %a) {71entry:72 %vtable = load ptr, ptr %obj73 %p = call i1 @llvm.type.test(ptr %vtable, metadata !"_ZTS1A")74 call void @llvm.assume(i1 %p)75 %fptrptr = getelementptr ptr, ptr %vtable, i32 176 %fptr1 = load ptr, ptr %fptrptr, align 877 78 ;; Check that the call was devirtualized.79 ; CHECK-IR: %call = tail call i32 @_ZN1A1nEi80 ; CHECK-NODEVIRT-IR: %call = tail call i32 %fptr181 %call = tail call i32 %fptr1(ptr nonnull %obj, i32 %a)82 83 ret i32 %call84}85; CHECK-IR-LABEL: ret i3286; CHECK-IR-NEXT: }87 88declare i1 @llvm.type.test(ptr, metadata)89declare void @llvm.assume(i1)90declare void @__cxa_pure_virtual() unnamed_addr91 92define linkonce_odr i32 @_ZN1A1fEi(ptr %this, i32 %a) #0 {93 ret i32 094}95 96define linkonce_odr i32 @_ZN1A1nEi(ptr %this, i32 %a) #0 {97 ret i32 098}99 100define linkonce_odr i32 @_ZN1B1fEi(ptr %this, i32 %a) #0 {101 ret i32 0102}103 104;; Make sure we don't inline or otherwise optimize out the direct calls.105attributes #0 = { noinline optnone }106 107!0 = !{i64 16, !"_ZTS1A"}108!1 = !{i64 16, !"_ZTS1B"}109!2 = !{i64 0}110