| ; RUN: opt < %s -passes=globaldce -S | FileCheck %s |
| |
| ; structs A, B and C have vcall_visibility of public, linkage-unit and |
| ; translation-unit respectively. This test is run before LTO linking occurs |
| ; so only C can be VFE'd. |
| |
| target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" |
| |
| %struct.A = type { ptr } |
| |
| @_ZTV1A = hidden unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null, ptr null, ptr @_ZN1A3fooEv] }, align 8, !type !0, !type !1, !vcall_visibility !2 |
| |
| define internal void @_ZN1AC2Ev(ptr %this) { |
| entry: |
| store ptr getelementptr inbounds ({ [3 x ptr] }, ptr @_ZTV1A, i64 0, inrange i32 0, i64 2), ptr %this, align 8 |
| ret void |
| } |
| |
| ; CHECK: define {{.*}} @_ZN1A3fooEv( |
| define internal void @_ZN1A3fooEv(ptr nocapture %this) { |
| entry: |
| ret void |
| } |
| |
| define dso_local ptr @_Z6make_Av() { |
| entry: |
| %call = tail call ptr @_Znwm(i64 8) |
| tail call void @_ZN1AC2Ev(ptr %call) |
| ret ptr %call |
| } |
| |
| |
| %struct.B = type { ptr } |
| |
| @_ZTV1B = hidden unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null, ptr null, ptr @_ZN1B3fooEv] }, align 8, !type !0, !type !1, !vcall_visibility !3 |
| |
| define internal void @_ZN1BC2Ev(ptr %this) { |
| entry: |
| store ptr getelementptr inbounds ({ [3 x ptr] }, ptr @_ZTV1B, i64 0, inrange i32 0, i64 2), ptr %this, align 8 |
| ret void |
| } |
| |
| ; CHECK: define {{.*}} @_ZN1B3fooEv( |
| define internal void @_ZN1B3fooEv(ptr nocapture %this) { |
| entry: |
| ret void |
| } |
| |
| define dso_local ptr @_Z6make_Bv() { |
| entry: |
| %call = tail call ptr @_Znwm(i64 8) |
| tail call void @_ZN1BC2Ev(ptr %call) |
| ret ptr %call |
| } |
| |
| |
| %struct.C = type { ptr } |
| |
| @_ZTV1C = hidden unnamed_addr constant { [3 x ptr] } { [3 x ptr] [ptr null, ptr null, ptr @_ZN1C3fooEv] }, align 8, !type !0, !type !1, !vcall_visibility !4 |
| |
| define internal void @_ZN1CC2Ev(ptr %this) { |
| entry: |
| store ptr getelementptr inbounds ({ [3 x ptr] }, ptr @_ZTV1C, i64 0, inrange i32 0, i64 2), ptr %this, align 8 |
| ret void |
| } |
| |
| ; CHECK-NOT: define {{.*}} @_ZN1C3fooEv( |
| define internal void @_ZN1C3fooEv(ptr nocapture %this) { |
| entry: |
| ret void |
| } |
| |
| define dso_local ptr @_Z6make_Cv() { |
| entry: |
| %call = tail call ptr @_Znwm(i64 8) |
| tail call void @_ZN1CC2Ev(ptr %call) |
| ret ptr %call |
| } |
| |
| declare dso_local noalias nonnull ptr @_Znwm(i64) |
| |
| !llvm.module.flags = !{!5} |
| |
| !0 = !{i64 16, !"_ZTS1A"} |
| !1 = !{i64 16, !"_ZTSM1AFvvE.virtual"} |
| !2 = !{i64 0} ; public vcall visibility |
| !3 = !{i64 1} ; linkage-unit vcall visibility |
| !4 = !{i64 2} ; translation-unit vcall visibility |
| !5 = !{i32 1, !"Virtual Function Elim", i32 1} |