60 lines
2.1 KiB
LLVM
60 lines
2.1 KiB
LLVM
; 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 (i1 (i8*)* @vf0 to i8*)], !type !0
|
|
@vt2 = constant [1 x i8*] [i8* bitcast (i1 (i8*)* @vf0 to i8*)], !type !0, !type !1
|
|
@vt3 = constant [1 x i8*] [i8* bitcast (i1 (i8*)* @vf1 to i8*)], !type !0, !type !1
|
|
@vt4 = constant [1 x i8*] [i8* bitcast (i1 (i8*)* @vf1 to i8*)], !type !1
|
|
|
|
define i1 @vf0(i8* %this) readnone {
|
|
ret i1 0
|
|
}
|
|
|
|
define i1 @vf1(i8* %this) readnone {
|
|
ret i1 1
|
|
}
|
|
|
|
; CHECK: define i1 @call1
|
|
define i1 @call1(i8* %obj) {
|
|
%vtableptr = bitcast i8* %obj to [1 x i8*]**
|
|
%vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr
|
|
; CHECK: [[VT1:%[^ ]*]] = bitcast [1 x i8*]* {{.*}} to i8*
|
|
%vtablei8 = bitcast [1 x i8*]* %vtable to i8*
|
|
%p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid1")
|
|
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 i1 (i8*)*
|
|
; CHECK: [[RES1:%[^ ]*]] = icmp eq i8* [[VT1]], bitcast ([1 x i8*]* @vt3 to i8*)
|
|
%result = call i1 %fptr_casted(i8* %obj)
|
|
; CHECK: ret i1 [[RES1]]
|
|
ret i1 %result
|
|
}
|
|
|
|
; CHECK: define i32 @call2
|
|
define i32 @call2(i8* %obj) {
|
|
%vtableptr = bitcast i8* %obj to [1 x i8*]**
|
|
%vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr
|
|
; CHECK: [[VT2:%[^ ]*]] = bitcast [1 x i8*]* {{.*}} to i8*
|
|
%vtablei8 = bitcast [1 x i8*]* %vtable to i8*
|
|
%p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid2")
|
|
call void @llvm.assume(i1 %p)
|
|
%fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0
|
|
%fptr = load i8*, i8** %fptrptr
|
|
; Intentional type mismatch to test zero extend.
|
|
%fptr_casted = bitcast i8* %fptr to i32 (i8*)*
|
|
; CHECK: [[RES2:%[^ ]*]] = icmp ne i8* [[VT1]], bitcast ([1 x i8*]* @vt2 to i8*)
|
|
%result = call i32 %fptr_casted(i8* %obj)
|
|
; CHECK: [[ZEXT2:%[^ ]*]] = zext i1 [[RES2]] to i32
|
|
; CHECK: ret i32 [[ZEXT2:%[^ ]*]]
|
|
ret i32 %result
|
|
}
|
|
|
|
declare i1 @llvm.type.test(i8*, metadata)
|
|
declare void @llvm.assume(i1)
|
|
|
|
!0 = !{i32 0, !"typeid1"}
|
|
!1 = !{i32 0, !"typeid2"}
|