74 lines · plain
1; REQUIRES: x86-registered-target2 3; Test devirtualization requiring promotion of local targets, where the4; promotion is required by one devirtualization and needs to be updated5; for a second devirtualization in the defining module as a post-pass6; update.7 8; Generate unsplit module with summary for ThinLTO index-based WPD.9; RUN: opt -thinlto-bc -o %t3.o %s10; RUN: opt -thinlto-bc -o %t4.o %p/Inputs/devirt_promote.ll11 12; RUN: llvm-lto2 run %t3.o %t4.o -save-temps -pass-remarks=. \13; RUN: -whole-program-visibility \14; RUN: -wholeprogramdevirt-print-index-based \15; RUN: -o %t5 \16; RUN: -r=%t3.o,test,px \17; RUN: -r=%t4.o,_ZN1B1fEi,p \18; RUN: -r=%t4.o,test2,px \19; RUN: -r=%t4.o,_ZTV1B,px \20; RUN: 2>&1 | FileCheck %s --check-prefix=REMARK --check-prefix=PRINT21; RUN: llvm-dis %t5.1.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR122; RUN: llvm-dis %t5.2.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR223; RUN: llvm-nm %t5.1 | FileCheck %s --check-prefix=NM-INDEX124; RUN: llvm-nm %t5.2 | FileCheck %s --check-prefix=NM-INDEX225 26; NM-INDEX1: U _ZN1A1nEi.llvm.27 28; Make sure that not only did _ZN1A1nEi get promoted (due to the29; devirtualization in the other module) but the reference due to the30; devirtualization in its defining module should be to the promoted31; symbol.32; NM-INDEX2-NOT: U _ZN1A1nEi33; NM-INDEX2: T _ZN1A1nEi.llvm.34; NM-INDEX2-NOT: U _ZN1A1nEi35 36; The thin link devirtualizes all calls to _ZN1A1nEi.37; PRINT: Devirtualized call to {{.*}} (_ZN1A1nEi)38 39; We should devirt call to _ZN1A1nEi once in importing module and once40; in original (exporting) module.41; REMARK-COUNT-2: single-impl: devirtualized a call to _ZN1A1nEi.llvm.42 43target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"44target triple = "x86_64-grtev4-linux-gnu"45 46%struct.A = type { ptr }47 48; CHECK-IR1-LABEL: define i32 @test49define i32 @test(ptr %obj, i32 %a) {50entry:51 %vtable = load ptr, ptr %obj52 %p = call i1 @llvm.type.test(ptr %vtable, metadata !"_ZTS1A")53 call void @llvm.assume(i1 %p)54 %fptrptr = getelementptr ptr, ptr %vtable, i32 155 %fptr1 = load ptr, ptr %fptrptr, align 856 57 ; Check that the call was devirtualized.58 ; CHECK-IR1: %call = tail call i32 @_ZN1A1nEi59 %call = tail call i32 %fptr1(ptr nonnull %obj, i32 %a)60 61 ret i32 %call62}63; CHECK-IR1-LABEL: ret i3264; CHECK-IR1-LABEL: }65 66; CHECK-IR2: define noundef i32 @test267; Check that the call was devirtualized.68; CHECK-IR2: %call4 = tail call i32 @_ZN1A1nEi69 70declare i1 @llvm.type.test(ptr, metadata)71declare void @llvm.assume(i1)72 73attributes #0 = { noinline optnone }74