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1; RUN: opt < %s -passes=globaldce -S | FileCheck %s2 3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"4 5declare { ptr, i1 } @llvm.type.checked.load(ptr, i32, metadata)6 7@vtable = internal unnamed_addr constant { [3 x i32] } { [3 x i32] [8 i32 trunc (i64 sub (i64 ptrtoint (ptr @vfunc1 to i64), i64 ptrtoint (ptr @vtable to i64)) to i32),9 i32 trunc (i64 sub (i64 ptrtoint (ptr @vfunc2 to i64), i64 ptrtoint (ptr @vtable to i64)) to i32),10 11 ; a "bad" relative pointer because it's base is not the @vtable symbol12 i32 trunc (i64 sub (i64 ptrtoint (ptr @weird_ref_1 to i64), i64 ptrtoint (ptr @weird_ref_2 to i64)) to i32)13]}, align 8, !type !0, !type !1, !vcall_visibility !{i64 2}14!0 = !{i64 0, !"vfunc1.type"}15!1 = !{i64 4, !"vfunc2.type"}16 17; CHECK: @vtable = internal unnamed_addr constant { [3 x i32] } zeroinitializer, align 8, !type !0, !type !1, !vcall_visibility !218 19@vtable2 = internal unnamed_addr constant { [3 x i32] } { [3 x i32] [20 i32 trunc (i64 sub (i64 ptrtoint (ptr dso_local_equivalent @vfunc3 to i64), i64 ptrtoint (ptr @vtable2 to i64)) to i32),21 i32 trunc (i64 sub (i64 ptrtoint (ptr dso_local_equivalent @vfunc4 to i64), i64 ptrtoint (ptr @vtable2 to i64)) to i32),22 23 ; a "bad" relative pointer because it's base is not the @vtable symbol24 i32 trunc (i64 sub (i64 ptrtoint (ptr @weird_ref_3 to i64), i64 ptrtoint (ptr @weird_ref_4 to i64)) to i32)25]}, align 4, !type !3, !type !4, !vcall_visibility !{i64 2}26!3 = !{i64 0, !"vfunc3.type"}27!4 = !{i64 4, !"vfunc4.type"}28 29; CHECK: @vtable2 = internal unnamed_addr constant { [3 x i32] } zeroinitializer, align 4, !type !3, !type !4, !vcall_visibility !230 31define internal void @vfunc1() { ret void }32define internal void @vfunc2() { ret void }33define internal void @weird_ref_1() { ret void }34define internal void @weird_ref_2() { ret void }35declare void @vfunc3()36declare void @vfunc4()37declare void @weird_ref_3()38declare void @weird_ref_4()39 40define void @main() {41 %1 = ptrtoint ptr @vtable to i64 ; to keep @vtable alive42 call void @weird_ref_2()43 %2 = ptrtoint ptr @vtable2 to i64 ; to keep @vtable2 alive44 call void @weird_ref_4()45 ret void46}47 48!999 = !{i32 1, !"Virtual Function Elim", i32 1}49!llvm.module.flags = !{!999}50