1; REQUIRES: x86-registered-target 2 3; Test devirtualization requiring promotion of local targets, where the 4; promotion is required by one devirtualization and needs to be updated 5; for a second devirtualization in the defining module as a post-pass 6; update. 7 8; Generate unsplit module with summary for ThinLTO index-based WPD. 9; RUN: opt -thinlto-bc -o %t3.o %s 10; RUN: opt -thinlto-bc -o %t4.o %p/Inputs/devirt_promote.ll 11 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=PRINT 21; RUN: llvm-dis %t5.1.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR1 22; RUN: llvm-dis %t5.2.4.opt.bc -o - | FileCheck %s --check-prefix=CHECK-IR2 23; RUN: llvm-nm %t5.1 | FileCheck %s --check-prefix=NM-INDEX1 24; RUN: llvm-nm %t5.2 | FileCheck %s --check-prefix=NM-INDEX2 25 26; NM-INDEX1: U _ZN1A1nEi.llvm. 27 28; Make sure that not only did _ZN1A1nEi get promoted (due to the 29; devirtualization in the other module) but the reference due to the 30; devirtualization in its defining module should be to the promoted 31; symbol. 32; NM-INDEX2-NOT: U _ZN1A1nEi 33; NM-INDEX2: T _ZN1A1nEi.llvm. 34; NM-INDEX2-NOT: U _ZN1A1nEi 35 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 once 40; 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 @test 49define i32 @test(ptr %obj, i32 %a) { 50entry: 51 %vtable = load ptr, ptr %obj 52 %p = call i1 @llvm.type.test(ptr %vtable, metadata !"_ZTS1A") 53 call void @llvm.assume(i1 %p) 54 %fptrptr = getelementptr ptr, ptr %vtable, i32 1 55 %fptr1 = load ptr, ptr %fptrptr, align 8 56 57 ; Check that the call was devirtualized. 58 ; CHECK-IR1: %call = tail call i32 @_ZN1A1nEi 59 %call = tail call i32 %fptr1(ptr nonnull %obj, i32 %a) 60 61 ret i32 %call 62} 63; CHECK-IR1-LABEL: ret i32 64; CHECK-IR1-LABEL: } 65 66; CHECK-IR2: define noundef i32 @test2 67; Check that the call was devirtualized. 68; CHECK-IR2: %call4 = tail call i32 @_ZN1A1nEi 69 70declare i1 @llvm.type.test(ptr, metadata) 71declare void @llvm.assume(i1) 72 73attributes #0 = { noinline optnone } 74