forked from OSchip/llvm-project
43 lines
1.2 KiB
LLVM
43 lines
1.2 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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@vt2 = constant [3 x i8*] [
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i8* bitcast (i1 (i8*)* @vf1i1 to i8*),
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i8* bitcast (i1 (i8*)* @vf0i1 to i8*),
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i8* bitcast (i32 (i8*)* @vf2i32 to i8*)
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], !type !0
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define i1 @vf0i1(i8* %this) readnone {
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ret i1 0
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}
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define i1 @vf1i1(i8* %this) readnone {
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ret i1 1
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}
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define i32 @vf2i32(i8* %this) readnone {
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ret i32 2
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}
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; CHECK: define i1 @call1(
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define i1 @call1(i8* %obj) {
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%vtableptr = bitcast i8* %obj to [3 x i8*]**
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%vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr
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%vtablei8 = bitcast [3 x i8*]* %vtable to i8*
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%p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid")
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call void @llvm.assume(i1 %p)
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%p2 = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid")
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call void @llvm.assume(i1 %p2)
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%fptrptr = getelementptr [3 x i8*], [3 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 i1 (i8*)*
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%result = call i1 %fptr_casted(i8* %obj)
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ret i1 %result
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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 0, !"typeid"} |