| ; -stats requires asserts |
| ; REQUIRES: asserts |
| |
| ; RUN: opt -S -passes=wholeprogramdevirt -whole-program-visibility -pass-remarks=wholeprogramdevirt -stats %s 2>&1 | FileCheck %s |
| ; Skipping vf0i1 is identical to setting public LTO visibility. We don't devirtualize vf0i1 and all other |
| ; virtual call targets. |
| ; RUN: opt -S -passes=wholeprogramdevirt -whole-program-visibility -pass-remarks=wholeprogramdevirt -wholeprogramdevirt-skip=vf0i1 %s 2>&1 | FileCheck %s --check-prefix=SKIP |
| ; We have two set of call targets {vf0i1, vf1i1} and {vf1i32, vf2i32, vf3i32, vf4i32}. |
| ; The command below prevents both of them from devirtualization. |
| ; RUN: opt -S -passes=wholeprogramdevirt -whole-program-visibility -pass-remarks=wholeprogramdevirt -wholeprogramdevirt-skip=vf0i1,vf1i32 %s 2>&1 | FileCheck %s --check-prefix=SKIP-ALL |
| ; Check wildcard |
| ; RUN: opt -S -passes=wholeprogramdevirt -whole-program-visibility -pass-remarks=wholeprogramdevirt -wholeprogramdevirt-skip=vf?i1 %s 2>&1 | FileCheck %s --check-prefix=SKIP |
| |
| target datalayout = "e-p:64:64" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ; CHECK: remark: <unknown>:0:0: virtual-const-prop-1-bit: devirtualized a call to vf0i1 |
| ; CHECK: remark: <unknown>:0:0: virtual-const-prop-1-bit: devirtualized a call to vf1i1 |
| ; CHECK: remark: <unknown>:0:0: virtual-const-prop: devirtualized a call to vf1i32 |
| ; CHECK: remark: <unknown>:0:0: devirtualized vf0i1 |
| ; CHECK: remark: <unknown>:0:0: devirtualized vf1i1 |
| ; CHECK: remark: <unknown>:0:0: devirtualized vf1i32 |
| ; CHECK: remark: <unknown>:0:0: devirtualized vf2i32 |
| ; CHECK: remark: <unknown>:0:0: devirtualized vf3i32 |
| ; CHECK: remark: <unknown>:0:0: devirtualized vf4i32 |
| ; CHECK-NOT: devirtualized |
| |
| ; SKIP: remark: <unknown>:0:0: virtual-const-prop: devirtualized a call to vf1i32 |
| ; SKIP: remark: <unknown>:0:0: devirtualized vf1i32 |
| ; SKIP: remark: <unknown>:0:0: devirtualized vf2i32 |
| ; SKIP: remark: <unknown>:0:0: devirtualized vf3i32 |
| ; SKIP: remark: <unknown>:0:0: devirtualized vf4i32 |
| ; SKIP-NOT: devirtualized |
| |
| ; SKIP-ALL-NOT: devirtualized |
| |
| ; CHECK: [[VT1DATA:@[^ ]*]] = private constant { [8 x i8], [3 x ptr], [0 x i8] } { [8 x i8] c"\00\00\00\01\00\00\00\02", [3 x ptr] [ptr @vf0i1, ptr @vf1i1, ptr @vf1i32], [0 x i8] zeroinitializer }, section "vt1sec", !type [[T8:![0-9]+]] |
| @vt1 = constant [3 x ptr] [ |
| ptr @vf0i1, |
| ptr @vf1i1, |
| ptr @vf1i32 |
| ], section "vt1sec", !type !0 |
| |
| ; CHECK: [[VT2DATA:@[^ ]*]] = private constant { [8 x i8], [3 x ptr], [0 x i8] } { [8 x i8] c"\00\00\00\02\00\00\00\01", [3 x ptr] [ptr @vf1i1, ptr @vf0i1, ptr @vf2i32], [0 x i8] zeroinitializer }, !type [[T8]] |
| @vt2 = constant [3 x ptr] [ |
| ptr @vf1i1, |
| ptr @vf0i1, |
| ptr @vf2i32 |
| ], !type !0 |
| |
| ; CHECK: [[VT3DATA:@[^ ]*]] = private constant { [8 x i8], [3 x ptr], [0 x i8] } { [8 x i8] c"\00\00\00\03\00\00\00\02", [3 x ptr] [ptr @vf0i1, ptr @vf1i1, ptr @vf3i32], [0 x i8] zeroinitializer }, !type [[T8]] |
| @vt3 = constant [3 x ptr] [ |
| ptr @vf0i1, |
| ptr @vf1i1, |
| ptr @vf3i32 |
| ], !type !0 |
| |
| ; CHECK: [[VT4DATA:@[^ ]*]] = private constant { [8 x i8], [3 x ptr], [0 x i8] } { [8 x i8] c"\00\00\00\04\00\00\00\01", [3 x ptr] [ptr @vf1i1, ptr @vf0i1, ptr @vf4i32], [0 x i8] zeroinitializer }, !type [[T8]] |
| @vt4 = constant [3 x ptr] [ |
| ptr @vf1i1, |
| ptr @vf0i1, |
| ptr @vf4i32 |
| ], !type !0 |
| |
| ; CHECK: @vt5 = {{.*}}, !type [[T0:![0-9]+]] |
| @vt5 = constant [3 x ptr] [ |
| ptr @__cxa_pure_virtual, |
| ptr @__cxa_pure_virtual, |
| ptr @__cxa_pure_virtual |
| ], !type !0 |
| |
| ; CHECK: @vt1 = alias [3 x ptr], getelementptr inbounds ({ [8 x i8], [3 x ptr], [0 x i8] }, ptr [[VT1DATA]], i32 0, i32 1) |
| ; CHECK: @vt2 = alias [3 x ptr], getelementptr inbounds ({ [8 x i8], [3 x ptr], [0 x i8] }, ptr [[VT2DATA]], i32 0, i32 1) |
| ; CHECK: @vt3 = alias [3 x ptr], getelementptr inbounds ({ [8 x i8], [3 x ptr], [0 x i8] }, ptr [[VT3DATA]], i32 0, i32 1) |
| ; CHECK: @vt4 = alias [3 x ptr], getelementptr inbounds ({ [8 x i8], [3 x ptr], [0 x i8] }, ptr [[VT4DATA]], i32 0, i32 1) |
| |
| define i1 @vf0i1(ptr %this) readnone { |
| ret i1 0 |
| } |
| |
| define i1 @vf1i1(ptr %this) readnone { |
| ret i1 1 |
| } |
| |
| define i32 @vf1i32(ptr %this) readnone { |
| ret i32 1 |
| } |
| |
| define i32 @vf2i32(ptr %this) readnone { |
| ret i32 2 |
| } |
| |
| define i32 @vf3i32(ptr %this) readnone { |
| ret i32 3 |
| } |
| |
| define i32 @vf4i32(ptr %this) readnone { |
| ret i32 4 |
| } |
| |
| ; CHECK: define i1 @call1( |
| define i1 @call1(ptr %obj) { |
| %vtable = load ptr, ptr %obj |
| %pair = call {ptr, i1} @llvm.type.checked.load(ptr %vtable, i32 0, metadata !"typeid") |
| %fptr = extractvalue {ptr, i1} %pair, 0 |
| ; CHECK: [[VTGEP1:%[^ ]*]] = getelementptr i8, ptr %vtable, i32 -1 |
| ; CHECK: [[VTLOAD1:%[^ ]*]] = load i8, ptr [[VTGEP1]] |
| ; CHECK: [[VTAND1:%[^ ]*]] = and i8 [[VTLOAD1]], 1 |
| ; CHECK: [[VTCMP1:%[^ ]*]] = icmp ne i8 [[VTAND1]], 0 |
| %result = call i1 %fptr(ptr %obj) |
| ; CHECK: [[AND1:%[^ ]*]] = and i1 [[VTCMP1]], true |
| %p = extractvalue {ptr, i1} %pair, 1 |
| %and = and i1 %result, %p |
| ; CHECK: ret i1 [[AND1]] |
| ret i1 %and |
| } |
| |
| ; CHECK: define i1 @call2( |
| define i1 @call2(ptr %obj) { |
| %vtable = load ptr, ptr %obj |
| %pair = call {ptr, i1} @llvm.type.checked.load(ptr %vtable, i32 8, metadata !"typeid") |
| %fptr = extractvalue {ptr, i1} %pair, 0 |
| ; CHECK: [[VTGEP2:%[^ ]*]] = getelementptr i8, ptr %vtable, i32 -1 |
| ; CHECK: [[VTLOAD2:%[^ ]*]] = load i8, ptr [[VTGEP2]] |
| ; CHECK: [[VTAND2:%[^ ]*]] = and i8 [[VTLOAD2]], 2 |
| ; CHECK: [[VTCMP2:%[^ ]*]] = icmp ne i8 [[VTAND2]], 0 |
| %result = call i1 %fptr(ptr %obj) |
| ; CHECK: [[AND2:%[^ ]*]] = and i1 [[VTCMP2]], true |
| %p = extractvalue {ptr, i1} %pair, 1 |
| %and = and i1 %result, %p |
| ; CHECK: ret i1 [[AND2]] |
| ret i1 %and |
| } |
| |
| ; CHECK: define i32 @call3( |
| define i32 @call3(ptr %obj) { |
| %vtable = load ptr, ptr %obj |
| %pair = call {ptr, i1} @llvm.type.checked.load(ptr %vtable, i32 16, metadata !"typeid") |
| %fptr = extractvalue {ptr, i1} %pair, 0 |
| ; CHECK: [[VTGEP3:%[^ ]*]] = getelementptr i8, ptr %vtable, i32 -5 |
| ; CHECK: [[VTLOAD3:%[^ ]*]] = load i32, ptr [[VTGEP3]] |
| %result = call i32 %fptr(ptr %obj) |
| ; CHECK: ret i32 [[VTLOAD3]] |
| ret i32 %result |
| } |
| |
| declare {ptr, i1} @llvm.type.checked.load(ptr, i32, metadata) |
| declare void @llvm.assume(i1) |
| declare void @__cxa_pure_virtual() |
| |
| ; CHECK: [[T8]] = !{i32 8, !"typeid"} |
| ; CHECK: [[T0]] = !{i32 0, !"typeid"} |
| |
| !0 = !{i32 0, !"typeid"} |
| |
| ; CHECK: 6 wholeprogramdevirt - Number of whole program devirtualization targets |
| ; CHECK: 1 wholeprogramdevirt - Number of virtual constant propagations |
| ; CHECK: 2 wholeprogramdevirt - Number of 1 bit virtual constant propagations |