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; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s
target datalayout = "e-p:64:64"
target triple = "x86_64-unknown-linux-gnu"
@vt1 = constant [1 x i8*] [i8* bitcast (i32 (i8*)* @vf1 to i8*)]
@vt2 = constant [1 x i8*] [i8* bitcast (i32 (i8*)* @vf2 to i8*)]
define i32 @vf1(i8* %this) readnone {
ret i32 123
}
define i32 @vf2(i8* %this) readnone {
ret i32 123
}
; CHECK: define i32 @call
define i32 @call(i8* %obj) personality i8* undef {
%vtableptr = bitcast i8* %obj to [1 x i8*]**
%vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr
%vtablei8 = bitcast [1 x i8*]* %vtable to i8*
%p = call i1 @llvm.bitset.test(i8* %vtablei8, metadata !"bitset")
call void @llvm.assume(i1 %p)
%fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0
%fptr = load i8*, i8** %fptrptr
%fptr_casted = bitcast i8* %fptr to i32 (i8*)*
; CHECK: br label %[[RET:[0-9A-Za-z]*]]
%result = invoke i32 %fptr_casted(i8* %obj) to label %ret unwind label %unwind
unwind:
%x = landingpad i32 cleanup
unreachable
ret:
; CHECK: [[RET]]:
; CHECK-NEXT: ret i32 123
ret i32 %result
}
declare i1 @llvm.bitset.test(i8*, metadata)
declare void @llvm.assume(i1)
!0 = !{!"bitset", [1 x i8*]* @vt1, i32 0}
!1 = !{!"bitset", [1 x i8*]* @vt2, i32 0}
!llvm.bitsets = !{!0, !1}
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