1 ; REQUIRES: x86-registered-target
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
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
12 ; RUN: llvm-lto2 run %t3.o %t4.o -save-temps -pass-remarks=. \
13 ; RUN: -whole-program-visibility \
14 ; RUN: -wholeprogramdevirt-print-index-based \
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
26 ; NM-INDEX1: U _ZN1A1nEi.llvm.
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
32 ; NM-INDEX2-NOT: U _ZN1A1nEi
33 ; NM-INDEX2: T _ZN1A1nEi.llvm.
34 ; NM-INDEX2-NOT: U _ZN1A1nEi
36 ; The thin link devirtualizes all calls to _ZN1A1nEi.
37 ; PRINT: Devirtualized call to {{.*}} (_ZN1A1nEi)
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.
43 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
44 target triple = "x86_64-grtev4-linux-gnu"
46 %struct.A = type { ptr }
48 ; CHECK-IR1-LABEL: define i32 @test
49 define i32 @test(ptr %obj, i32 %a) {
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
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)
63 ; CHECK-IR1-LABEL: ret i32
66 ; CHECK-IR2: define noundef i32 @test2
67 ; Check that the call was devirtualized.
68 ; CHECK-IR2: %call4 = tail call i32 @_ZN1A1nEi
70 declare i1 @llvm.type.test(ptr, metadata)
71 declare void @llvm.assume(i1)
73 attributes #0 = { noinline optnone }