53 lines
1.6 KiB
LLVM
53 lines
1.6 KiB
LLVM
; RUN: opt -S -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 void (i8*)*], [2 x void (i8*)*] }
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@vt = constant %vtTy { [2 x void (i8*)*] [void (i8*)* null, void (i8*)* @vf1], [2 x void (i8*)*] [void (i8*)* null, void (i8*)* @vf2] }, !type !0, !type !1
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define void @vf1(i8* %this) {
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ret void
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}
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define void @vf2(i8* %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(i8* %obj) {
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%vtableptr = bitcast i8* %obj to [1 x i8*]**
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%vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr
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%vtablei8 = bitcast [1 x i8*]* %vtable to i8*
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%p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid1")
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call void @llvm.assume(i1 %p)
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%fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0
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%fptr = load i8*, i8** %fptrptr
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%fptr_casted = bitcast i8* %fptr to void (i8*)*
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; CHECK: call void @vf1(
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call void %fptr_casted(i8* %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(i8* %obj) {
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%vtableptr = bitcast i8* %obj to [1 x i8*]**
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%vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr
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%vtablei8 = bitcast [1 x i8*]* %vtable to i8*
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%p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid2")
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call void @llvm.assume(i1 %p)
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%fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0
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%fptr = load i8*, i8** %fptrptr
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%fptr_casted = bitcast i8* %fptr to void (i8*)*
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; CHECK: call void @vf2(
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call void %fptr_casted(i8* %obj)
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ret void
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}
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declare i1 @llvm.type.test(i8*, 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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