1 ; RUN: opt -S -wholeprogramdevirt %s | FileCheck %s 2 ; RUN: opt -S -passes=wholeprogramdevirt %s | FileCheck %s 3 4 target datalayout = "e-p:64:64" 5 target triple = "x86_64-unknown-linux-gnu" 6 7 ; CHECK: private constant { [8 x i8], [1 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\00\00\00\00\01", [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf1 to i8*)], [0 x i8] zeroinitializer }, !type [[T8:![0-9]+]] 8 ; CHECK: private constant { [8 x i8], [1 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\00\00\00\00\02", [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf2 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]] 9 ; CHECK: private constant { [8 x i8], [1 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\00\00\00\00\01", [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf4 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]] 10 ; CHECK: private constant { [8 x i8], [1 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\00\00\00\00\02", [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf8 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]] 11 12 @vt1 = constant [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf1 to i8*)], !type !0 13 @vt2 = constant [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf2 to i8*)], !type !0 14 @vt4 = constant [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf4 to i8*)], !type !0 15 @vt8 = constant [1 x i8*] [i8* bitcast (i1 (i8*, i32)* @vf8 to i8*)], !type !0 16 17 define i1 @vf1(i8* %this, i32 %arg) readnone { 18 %and = and i32 %arg, 1 19 %cmp = icmp ne i32 %and, 0 20 ret i1 %cmp 21 } 22 23 define i1 @vf2(i8* %this, i32 %arg) readnone { 24 %and = and i32 %arg, 2 25 %cmp = icmp ne i32 %and, 0 26 ret i1 %cmp 27 } 28 29 define i1 @vf4(i8* %this, i32 %arg) readnone { 30 %and = and i32 %arg, 4 31 %cmp = icmp ne i32 %and, 0 32 ret i1 %cmp 33 } 34 35 define i1 @vf8(i8* %this, i32 %arg) readnone { 36 %and = and i32 %arg, 8 37 %cmp = icmp ne i32 %and, 0 38 ret i1 %cmp 39 } 40 41 ; CHECK: define i1 @call1 42 define i1 @call1(i8* %obj) { 43 %vtableptr = bitcast i8* %obj to [1 x i8*]** 44 %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr 45 %vtablei8 = bitcast [1 x i8*]* %vtable to i8* 46 %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") 47 call void @llvm.assume(i1 %p) 48 %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 49 %fptr = load i8*, i8** %fptrptr 50 %fptr_casted = bitcast i8* %fptr to i1 (i8*, i32)* 51 ; CHECK: getelementptr {{.*}} -1 52 ; CHECK: and {{.*}}, 1 53 %result = call i1 %fptr_casted(i8* %obj, i32 5) 54 ret i1 %result 55 } 56 57 ; CHECK: define i1 @call2 58 define i1 @call2(i8* %obj) { 59 %vtableptr = bitcast i8* %obj to [1 x i8*]** 60 %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr 61 %vtablei8 = bitcast [1 x i8*]* %vtable to i8* 62 %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid") 63 call void @llvm.assume(i1 %p) 64 %fptrptr = getelementptr [1 x i8*], [1 x i8*]* %vtable, i32 0, i32 0 65 %fptr = load i8*, i8** %fptrptr 66 %fptr_casted = bitcast i8* %fptr to i1 (i8*, i32)* 67 ; CHECK: getelementptr {{.*}} -1 68 ; CHECK: and {{.*}}, 2 69 %result = call i1 %fptr_casted(i8* %obj, i32 10) 70 ret i1 %result 71 } 72 73 declare i1 @llvm.type.test(i8*, metadata) 74 declare void @llvm.assume(i1) 75 76 ; CHECK: [[T8]] = !{i32 8, !"typeid"} 77 !0 = !{i32 0, !"typeid"} 78
