| ; 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 |
| ; RUN: opt -S -wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-single-impl.yaml < %s | FileCheck --check-prefixes=CHECK,SINGLE-IMPL %s |
| ; RUN: opt -S -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 |
| ; RUN: opt -S -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 |
| ; RUN: opt -S -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 |
| ; RUN: opt -S -wholeprogramdevirt -wholeprogramdevirt-summary-action=import -wholeprogramdevirt-read-summary=%S/Inputs/import-vcp.yaml < %s | FileCheck --check-prefixes=CHECK,VCP,VCP-X86,VCP64,INDIR %s |
| ; RUN: opt -S -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 |
| ; RUN: opt -S -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 |
| ; RUN: opt -S -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 |
| ; RUN: opt -S -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 |
| |
| target datalayout = "e-p:64:64" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; VCP-X86: @__typeid_typeid1_0_1_byte = external hidden global [0 x i8], !absolute_symbol !0 |
| ; VCP-X86: @__typeid_typeid1_0_1_bit = external hidden global [0 x i8], !absolute_symbol !1 |
| ; VCP-X86: @__typeid_typeid2_8_3_byte = external hidden global [0 x i8], !absolute_symbol !0 |
| ; VCP-X86: @__typeid_typeid2_8_3_bit = external hidden global [0 x i8], !absolute_symbol !1 |
| |
| ; Test cases where the argument values are known and we can apply virtual |
| ; constant propagation. |
| |
| ; CHECK: define i32 @call1 |
| define i32 @call1(i8* %obj) #0 { |
| %vtableptr = bitcast i8* %obj to [3 x i8*]** |
| %vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr |
| %vtablei8 = bitcast [3 x i8*]* %vtable to i8* |
| %p = call i1 @llvm.type.test(i8* %vtablei8, metadata !"typeid1") |
| call void @llvm.assume(i1 %p) |
| %fptrptr = getelementptr [3 x i8*], [3 x i8*]* %vtable, i32 0, i32 0 |
| %fptr = load i8*, i8** %fptrptr |
| %fptr_casted = bitcast i8* %fptr to i32 (i8*, i32)* |
| ; CHECK: {{.*}} = bitcast {{.*}} to i8* |
| ; VCP: [[VT1:%.*]] = bitcast {{.*}} to i8* |
| ; SINGLE-IMPL: call i32 bitcast (void ()* @singleimpl1 to i32 (i8*, i32)*) |
| %result = call i32 %fptr_casted(i8* %obj, i32 1) |
| ; UNIFORM-RET-VAL: ret i32 42 |
| ; VCP-X86: [[GEP1:%.*]] = getelementptr i8, i8* [[VT1]], i32 ptrtoint ([0 x i8]* @__typeid_typeid1_0_1_byte to i32) |
| ; VCP-ARM: [[GEP1:%.*]] = getelementptr i8, i8* [[VT1]], i32 42 |
| ; VCP: [[BC1:%.*]] = bitcast i8* [[GEP1]] to i32* |
| ; VCP: [[LOAD1:%.*]] = load i32, i32* [[BC1]] |
| ; VCP: ret i32 [[LOAD1]] |
| ; BRANCH-FUNNEL-NOVCP: [[VT1:%.*]] = bitcast {{.*}} to i8* |
| ; BRANCH-FUNNEL-NOVCP: call i32 bitcast (void ()* @__typeid_typeid1_0_branch_funnel to i32 (i8*, i8*, i32)*)(i8* nest [[VT1]], i8* %obj, i32 1) |
| ret i32 %result |
| } |
| |
| ; Test cases where the argument values are unknown, so we cannot apply virtual |
| ; constant propagation. |
| |
| ; CHECK: define i1 @call2 |
| define i1 @call2(i8* %obj) #0 { |
| ; BRANCH-FUNNEL: [[VT1:%.*]] = bitcast {{.*}} to i8* |
| %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* |
| %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 8, metadata !"typeid2") |
| %fptr = extractvalue {i8*, i1} %pair, 0 |
| %p = extractvalue {i8*, i1} %pair, 1 |
| ; SINGLE-IMPL: br i1 true, |
| br i1 %p, label %cont, label %trap |
| |
| cont: |
| %fptr_casted = bitcast i8* %fptr to i1 (i8*, i32)* |
| ; SINGLE-IMPL: call i1 bitcast (void ()* @singleimpl2 to i1 (i8*, i32)*) |
| ; INDIR: call i1 % |
| ; BRANCH-FUNNEL: call i1 bitcast (void ()* @__typeid_typeid2_8_branch_funnel to i1 (i8*, i8*, i32)*)(i8* nest [[VT1]], i8* %obj, i32 undef) |
| %result = call i1 %fptr_casted(i8* %obj, i32 undef) |
| ret i1 %result |
| |
| trap: |
| call void @llvm.trap() |
| unreachable |
| } |
| |
| ; CHECK: define i1 @call3 |
| define i1 @call3(i8* %obj) #0 { |
| %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* |
| %pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 8, metadata !"typeid2") |
| %fptr = extractvalue {i8*, i1} %pair, 0 |
| %p = extractvalue {i8*, i1} %pair, 1 |
| br i1 %p, label %cont, label %trap |
| |
| cont: |
| %fptr_casted = bitcast i8* %fptr to i1 (i8*, i32)* |
| %result = call i1 %fptr_casted(i8* %obj, i32 3) |
| ; 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) |
| ; 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) |
| ; VCP: [[VT2:%.*]] = bitcast {{.*}} to i8* |
| ; VCP-X86: [[GEP2:%.*]] = getelementptr i8, i8* [[VT2]], i32 ptrtoint ([0 x i8]* @__typeid_typeid2_8_3_byte to i32) |
| ; VCP-ARM: [[GEP2:%.*]] = getelementptr i8, i8* [[VT2]], i32 43 |
| ; VCP: [[LOAD2:%.*]] = load i8, i8* [[GEP2]] |
| ; VCP-X86: [[AND2:%.*]] = and i8 [[LOAD2]], ptrtoint ([0 x i8]* @__typeid_typeid2_8_3_bit to i8) |
| ; VCP-ARM: [[AND2:%.*]] = and i8 [[LOAD2]], -128 |
| ; VCP: [[ICMP2:%.*]] = icmp ne i8 [[AND2]], 0 |
| ; VCP: ret i1 [[ICMP2]] |
| ; BRANCH-FUNNEL-NOVCP: [[VT2:%.*]] = bitcast {{.*}} to i8* |
| ; BRANCH-FUNNEL-NOVCP: call i1 bitcast (void ()* @__typeid_typeid2_8_branch_funnel to i1 (i8*, i8*, i32)*)(i8* nest [[VT2]], i8* %obj, i32 3) |
| ret i1 %result |
| |
| trap: |
| call void @llvm.trap() |
| unreachable |
| } |
| |
| ; SINGLE-IMPL-DAG: declare void @singleimpl1() |
| ; SINGLE-IMPL-DAG: declare void @singleimpl2() |
| |
| ; VCP32: !0 = !{i32 -1, i32 -1} |
| ; VCP64: !0 = !{i64 0, i64 4294967296} |
| |
| ; VCP32: !1 = !{i32 0, i32 256} |
| ; VCP64: !1 = !{i64 0, i64 256} |
| |
| declare void @llvm.assume(i1) |
| declare void @llvm.trap() |
| declare {i8*, i1} @llvm.type.checked.load(i8*, i32, metadata) |
| declare i1 @llvm.type.test(i8*, metadata) |
| |
| attributes #0 = { "target-features"="+retpoline" } |