45 lines
1.1 KiB
LLVM
45 lines
1.1 KiB
LLVM
; RUN: opt -S -passes=wholeprogramdevirt -whole-program-visibility %s | FileCheck %s
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target datalayout = "e-p:64:64"
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target triple = "x86_64-unknown-linux-gnu"
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%vtTy = type { [2 x ptr], [2 x ptr] }
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@vt = constant %vtTy { [2 x ptr] [ptr null, ptr @vf1], [2 x ptr] [ptr null, ptr @vf2] }, !type !0, !type !1
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define void @vf1(ptr %this) {
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ret void
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}
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define void @vf2(ptr %this) {
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ret void
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}
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; CHECK: define void @call1
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define void @call1(ptr %obj) {
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%vtable = load ptr, ptr %obj
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%p = call i1 @llvm.type.test(ptr %vtable, metadata !"typeid1")
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call void @llvm.assume(i1 %p)
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%fptr = load ptr, ptr %vtable
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; CHECK: call void @vf1(
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call void %fptr(ptr %obj)
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ret void
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}
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; CHECK: define void @call2
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define void @call2(ptr %obj) {
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%vtable = load ptr, ptr %obj
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%p = call i1 @llvm.type.test(ptr %vtable, metadata !"typeid2")
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call void @llvm.assume(i1 %p)
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%fptr = load ptr, ptr %vtable
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; CHECK: call void @vf2(
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call void %fptr(ptr %obj)
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ret void
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}
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declare i1 @llvm.type.test(ptr, metadata)
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declare void @llvm.assume(i1)
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!0 = !{i32 8, !"typeid1"}
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!1 = !{i32 24, !"typeid2"}
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