1; RUN: opt -S -passes=wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-single-impl.yaml < %s | FileCheck --check-prefixes=CHECK,SINGLE-IMPL %s 2; RUN: opt -S -passes=wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-uniform-ret-val.yaml < %s | FileCheck --check-prefixes=CHECK,INDIR,UNIFORM-RET-VAL %s 3; RUN: opt -S -passes=wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-unique-ret-val0.yaml < %s | FileCheck --check-prefixes=CHECK,INDIR,UNIQUE-RET-VAL0 %s 4; RUN: opt -S -passes=wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-unique-ret-val1.yaml < %s | FileCheck --check-prefixes=CHECK,INDIR,UNIQUE-RET-VAL1 %s 5; RUN: opt -S -passes=wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-vcp.yaml < %s | FileCheck --check-prefixes=CHECK,VCP,VCP-X86,VCP64,INDIR %s 6; RUN: opt -S -passes=wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-vcp.yaml -mtriple=i686-unknown-linux -data-layout=e-p:32:32 < %s | FileCheck --check-prefixes=CHECK,VCP,VCP-X86,VCP32 %s 7; RUN: opt -S -passes=wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-vcp.yaml -mtriple=armv7-unknown-linux -data-layout=e-p:32:32 < %s | FileCheck --check-prefixes=CHECK,VCP,VCP-ARM %s 8; RUN: opt -S -passes=wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-vcp-branch-funnel.yaml < %s | FileCheck --check-prefixes=CHECK,VCP,VCP-X86,VCP64,BRANCH-FUNNEL %s 9; RUN: opt -S -passes=wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-branch-funnel.yaml < %s | FileCheck --check-prefixes=CHECK,BRANCH-FUNNEL,BRANCH-FUNNEL-NOVCP %s 10 11target datalayout = "e-p:64:64" 12target triple = "x86_64-unknown-linux-gnu" 13 14; VCP-X86: @__typeid_typeid1_0_1_byte = external hidden global [0 x i8], !absolute_symbol !0 15; VCP-X86: @__typeid_typeid1_0_1_bit = external hidden global [0 x i8], !absolute_symbol !1 16; VCP-X86: @__typeid_typeid2_8_3_byte = external hidden global [0 x i8], !absolute_symbol !0 17; VCP-X86: @__typeid_typeid2_8_3_bit = external hidden global [0 x i8], !absolute_symbol !1 18 19; Test cases where the argument values are known and we can apply virtual 20; constant propagation. 21 22; CHECK: define i32 @call1 23define i32 @call1(i8* %obj) #0 { 24 %vtableptr = bitcast i8* %obj to [3 x i8*]** 25 %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr 26 %vtablei8 = bitcast [3 x i8*]* %vtable to i8* 27 %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid1") 28 call void @llvm.assume(i1 %p) 29 %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 0 30 %fptr = load i8*, i8** %fptrptr 31 %fptr_casted = bitcast i8* %fptr to i32 (i8*, i32)* 32 ; CHECK: {{.*}} = bitcast {{.*}} to i8* 33 ; VCP: [[VT1:%.*]] = bitcast {{.*}} to i8* 34 ; SINGLE-IMPL: call i32 bitcast (void ()* @singleimpl1 to i32 (i8*, i32)*) 35 %result = call i32 %fptr_casted(i8* %obj, i32 1) 36 ; UNIFORM-RET-VAL: ret i32 42 37 ; VCP-X86: [[GEP1:%.*]] = getelementptr i8, i8* [[VT1]], i32 ptrtoint ([0 x i8]* @__typeid_typeid1_0_1_byte to i32) 38 ; VCP-ARM: [[GEP1:%.*]] = getelementptr i8, i8* [[VT1]], i32 42 39 ; VCP: [[BC1:%.*]] = bitcast i8* [[GEP1]] to i32* 40 ; VCP: [[LOAD1:%.*]] = load i32, i32* [[BC1]] 41 ; VCP: ret i32 [[LOAD1]] 42 ; BRANCH-FUNNEL-NOVCP: [[VT1:%.*]] = bitcast {{.*}} to i8* 43 ; BRANCH-FUNNEL-NOVCP: call i32 bitcast (void ()* @__typeid_typeid1_0_branch_funnel to i32 (i8*, i8*, i32)*)(i8* nest [[VT1]], i8* %obj, i32 1) 44 ret i32 %result 45} 46 47; Test cases where the argument values are unknown, so we cannot apply virtual 48; constant propagation. 49 50; CHECK: define i1 @call2 51define i1 @call2(i8* %obj) #0 { 52 ; BRANCH-FUNNEL: [[VT1:%.*]] = bitcast {{.*}} to i8* 53 %vtableptr = bitcast i8* %obj to [1 x i8*]** 54 %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr 55 %vtablei8 = bitcast [1 x i8*]* %vtable to i8* 56 %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 8, metadata !"typeid2") 57 %fptr = extractvalue {i8*, i1} %pair, 0 58 %p = extractvalue {i8*, i1} %pair, 1 59 ; SINGLE-IMPL: br i1 true, 60 br i1 %p, label %cont, label %trap 61 62cont: 63 %fptr_casted = bitcast i8* %fptr to i1 (i8*, i32)* 64 ; SINGLE-IMPL: call i1 bitcast (void ()* @singleimpl2 to i1 (i8*, i32)*) 65 ; INDIR: call i1 % 66 ; BRANCH-FUNNEL: call i1 bitcast (void ()* @__typeid_typeid2_8_branch_funnel to i1 (i8*, i8*, i32)*)(i8* nest [[VT1]], i8* %obj, i32 undef) 67 %result = call i1 %fptr_casted(i8* %obj, i32 undef) 68 ret i1 %result 69 70trap: 71 call void @llvm.trap() 72 unreachable 73} 74 75; CHECK: define i1 @call3 76define i1 @call3(i8* %obj) #0 { 77 %vtableptr = bitcast i8* %obj to [1 x i8*]** 78 %vtable = load [1 x i8*]*, [1 x i8*]** %vtableptr 79 %vtablei8 = bitcast [1 x i8*]* %vtable to i8* 80 %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 8, metadata !"typeid2") 81 %fptr = extractvalue {i8*, i1} %pair, 0 82 %p = extractvalue {i8*, i1} %pair, 1 83 br i1 %p, label %cont, label %trap 84 85cont: 86 %fptr_casted = bitcast i8* %fptr to i1 (i8*, i32)* 87 %result = call i1 %fptr_casted(i8* %obj, i32 3) 88 ; UNIQUE-RET-VAL0: icmp ne i8* %vtablei8, getelementptr inbounds ([0 x i8], [0 x i8]* @__typeid_typeid2_8_3_unique_member, i32 0, i32 0) 89 ; UNIQUE-RET-VAL1: icmp eq i8* %vtablei8, getelementptr inbounds ([0 x i8], [0 x i8]* @__typeid_typeid2_8_3_unique_member, i32 0, i32 0) 90 ; VCP: [[VT2:%.*]] = bitcast {{.*}} to i8* 91 ; VCP-X86: [[GEP2:%.*]] = getelementptr i8, i8* [[VT2]], i32 ptrtoint ([0 x i8]* @__typeid_typeid2_8_3_byte to i32) 92 ; VCP-ARM: [[GEP2:%.*]] = getelementptr i8, i8* [[VT2]], i32 43 93 ; VCP: [[LOAD2:%.*]] = load i8, i8* [[GEP2]] 94 ; VCP-X86: [[AND2:%.*]] = and i8 [[LOAD2]], ptrtoint ([0 x i8]* @__typeid_typeid2_8_3_bit to i8) 95 ; VCP-ARM: [[AND2:%.*]] = and i8 [[LOAD2]], -128 96 ; VCP: [[ICMP2:%.*]] = icmp ne i8 [[AND2]], 0 97 ; VCP: ret i1 [[ICMP2]] 98 ; BRANCH-FUNNEL-NOVCP: [[VT2:%.*]] = bitcast {{.*}} to i8* 99 ; BRANCH-FUNNEL-NOVCP: call i1 bitcast (void ()* @__typeid_typeid2_8_branch_funnel to i1 (i8*, i8*, i32)*)(i8* nest [[VT2]], i8* %obj, i32 3) 100 ret i1 %result 101 102trap: 103 call void @llvm.trap() 104 unreachable 105} 106 107; SINGLE-IMPL-DAG: declare void @singleimpl1() 108; SINGLE-IMPL-DAG: declare void @singleimpl2() 109 110; VCP32: !0 = !{i32 -1, i32 -1} 111; VCP64: !0 = !{i64 0, i64 4294967296} 112 113; VCP32: !1 = !{i32 0, i32 256} 114; VCP64: !1 = !{i64 0, i64 256} 115 116declare void @llvm.assume(i1) 117declare void @llvm.trap() 118declare {i8*, i1} @llvm.type.checked.load(i8*, i32, metadata) 119declare i1 @llvm.type.test(i8*, metadata) 120 121attributes #0 = { "target-features"="+retpoline" } 122