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165 lines
7.5 KiB
LLVM
165 lines
7.5 KiB
LLVM
; RUN: opt -S -wholeprogramdevirt -whole-program-visibility -pass-remarks=wholeprogramdevirt %s 2>&1 | FileCheck %s
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; Skipping vf0i1 is identical to setting public LTO visibility. We don't devirtualize vf0i1 and all other
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; virtual call targets.
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; RUN: opt -S -wholeprogramdevirt -whole-program-visibility -pass-remarks=wholeprogramdevirt -wholeprogramdevirt-skip=vf0i1 %s 2>&1 | FileCheck %s --check-prefix=SKIP
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; We have two set of call targets {vf0i1, vf1i1} and {vf1i32, vf2i32, vf3i32, vf4i32}.
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; The command below prevents both of them from devirtualization.
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; RUN: opt -S -wholeprogramdevirt -whole-program-visibility -pass-remarks=wholeprogramdevirt -wholeprogramdevirt-skip=vf0i1,vf1i32 %s 2>&1 | FileCheck %s --check-prefix=SKIP-ALL
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; Check wildcard
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; RUN: opt -S -wholeprogramdevirt -whole-program-visibility -pass-remarks=wholeprogramdevirt -wholeprogramdevirt-skip=vf?i1 %s 2>&1 | FileCheck %s --check-prefix=SKIP
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target datalayout = "e-p:64:64"
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target triple = "x86_64-unknown-linux-gnu"
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; CHECK: remark: <unknown>:0:0: virtual-const-prop: devirtualized a call to vf1i32
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; CHECK: remark: <unknown>:0:0: virtual-const-prop-1-bit: devirtualized a call to vf1i1
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; CHECK: remark: <unknown>:0:0: virtual-const-prop-1-bit: devirtualized a call to vf0i1
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; CHECK: remark: <unknown>:0:0: devirtualized vf0i1
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; CHECK: remark: <unknown>:0:0: devirtualized vf1i1
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; CHECK: remark: <unknown>:0:0: devirtualized vf1i32
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; CHECK: remark: <unknown>:0:0: devirtualized vf2i32
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; CHECK: remark: <unknown>:0:0: devirtualized vf3i32
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; CHECK: remark: <unknown>:0:0: devirtualized vf4i32
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; CHECK-NOT: devirtualized
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; SKIP: remark: <unknown>:0:0: virtual-const-prop: devirtualized a call to vf1i32
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; SKIP: remark: <unknown>:0:0: devirtualized vf1i32
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; SKIP: remark: <unknown>:0:0: devirtualized vf2i32
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; SKIP: remark: <unknown>:0:0: devirtualized vf3i32
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; SKIP: remark: <unknown>:0:0: devirtualized vf4i32
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; SKIP-NOT: devirtualized
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; SKIP-ALL-NOT: devirtualized
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; CHECK: [[VT1DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\01\01\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf1i32 to i8*)], [0 x i8] zeroinitializer }, section "vt1sec", !type [[T8:![0-9]+]]
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@vt1 = constant [3 x i8*] [
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i8* bitcast (i1 (i8*)* @vf0i1 to i8*),
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i8* bitcast (i1 (i8*)* @vf1i1 to i8*),
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i8* bitcast (i32 (i8*)* @vf1i32 to i8*)
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], section "vt1sec", !type !0
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; CHECK: [[VT2DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\02\02\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf2i32 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]]
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@vt2 = constant [3 x i8*] [
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i8* bitcast (i1 (i8*)* @vf1i1 to i8*),
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i8* bitcast (i1 (i8*)* @vf0i1 to i8*),
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i8* bitcast (i32 (i8*)* @vf2i32 to i8*)
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], !type !0
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; CHECK: [[VT3DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\01\03\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i32 (i8*)* @vf3i32 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]]
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@vt3 = constant [3 x i8*] [
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i8* bitcast (i1 (i8*)* @vf0i1 to i8*),
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i8* bitcast (i1 (i8*)* @vf1i1 to i8*),
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i8* bitcast (i32 (i8*)* @vf3i32 to i8*)
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], !type !0
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; CHECK: [[VT4DATA:@[^ ]*]] = private constant { [8 x i8], [3 x i8*], [0 x i8] } { [8 x i8] c"\00\00\00\02\04\00\00\00", [3 x i8*] [i8* bitcast (i1 (i8*)* @vf1i1 to i8*), i8* bitcast (i1 (i8*)* @vf0i1 to i8*), i8* bitcast (i32 (i8*)* @vf4i32 to i8*)], [0 x i8] zeroinitializer }, !type [[T8]]
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@vt4 = constant [3 x i8*] [
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i8* bitcast (i1 (i8*)* @vf1i1 to i8*),
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i8* bitcast (i1 (i8*)* @vf0i1 to i8*),
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i8* bitcast (i32 (i8*)* @vf4i32 to i8*)
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], !type !0
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; CHECK: @vt5 = {{.*}}, !type [[T0:![0-9]+]]
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@vt5 = constant [3 x i8*] [
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i8* bitcast (void ()* @__cxa_pure_virtual to i8*),
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i8* bitcast (void ()* @__cxa_pure_virtual to i8*),
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i8* bitcast (void ()* @__cxa_pure_virtual to i8*)
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], !type !0
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; CHECK: @vt1 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT1DATA]], i32 0, i32 1)
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; CHECK: @vt2 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT2DATA]], i32 0, i32 1)
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; CHECK: @vt3 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT3DATA]], i32 0, i32 1)
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; CHECK: @vt4 = alias [3 x i8*], getelementptr inbounds ({ [8 x i8], [3 x i8*], [0 x i8] }, { [8 x i8], [3 x i8*], [0 x i8] }* [[VT4DATA]], i32 0, i32 1)
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define i1 @vf0i1(i8* %this) readnone {
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ret i1 0
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}
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define i1 @vf1i1(i8* %this) readnone {
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ret i1 1
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}
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define i32 @vf1i32(i8* %this) readnone {
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ret i32 1
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}
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define i32 @vf2i32(i8* %this) readnone {
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ret i32 2
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}
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define i32 @vf3i32(i8* %this) readnone {
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ret i32 3
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}
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define i32 @vf4i32(i8* %this) readnone {
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ret i32 4
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}
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; CHECK: define i1 @call1(
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define i1 @call1(i8* %obj) {
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%vtableptr = bitcast i8* %obj to [3 x i8*]**
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%vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr
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; CHECK: [[VT1:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8*
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%vtablei8 = bitcast [3 x i8*]* %vtable to i8*
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%pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 0, metadata !"typeid")
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%fptr = extractvalue {i8*, i1} %pair, 0
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%fptr_casted = bitcast i8* %fptr to i1 (i8*)*
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; CHECK: [[VTGEP1:%[^ ]*]] = getelementptr i8, i8* [[VT1]], i32 -5
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; CHECK: [[VTLOAD1:%[^ ]*]] = load i8, i8* [[VTGEP1]]
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; CHECK: [[VTAND1:%[^ ]*]] = and i8 [[VTLOAD1]], 2
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; CHECK: [[VTCMP1:%[^ ]*]] = icmp ne i8 [[VTAND1]], 0
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%result = call i1 %fptr_casted(i8* %obj)
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; CHECK: [[AND1:%[^ ]*]] = and i1 [[VTCMP1]], true
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%p = extractvalue {i8*, i1} %pair, 1
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%and = and i1 %result, %p
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; CHECK: ret i1 [[AND1]]
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ret i1 %and
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}
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; CHECK: define i1 @call2(
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define i1 @call2(i8* %obj) {
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%vtableptr = bitcast i8* %obj to [3 x i8*]**
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%vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr
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; CHECK: [[VT2:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8*
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%vtablei8 = bitcast [3 x i8*]* %vtable to i8*
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%pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 8, metadata !"typeid")
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%fptr = extractvalue {i8*, i1} %pair, 0
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%fptr_casted = bitcast i8* %fptr to i1 (i8*)*
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; CHECK: [[VTGEP2:%[^ ]*]] = getelementptr i8, i8* [[VT2]], i32 -5
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; CHECK: [[VTLOAD2:%[^ ]*]] = load i8, i8* [[VTGEP2]]
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; CHECK: [[VTAND2:%[^ ]*]] = and i8 [[VTLOAD2]], 1
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; CHECK: [[VTCMP2:%[^ ]*]] = icmp ne i8 [[VTAND2]], 0
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%result = call i1 %fptr_casted(i8* %obj)
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; CHECK: [[AND2:%[^ ]*]] = and i1 [[VTCMP2]], true
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%p = extractvalue {i8*, i1} %pair, 1
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%and = and i1 %result, %p
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; CHECK: ret i1 [[AND2]]
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ret i1 %and
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}
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; CHECK: define i32 @call3(
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define i32 @call3(i8* %obj) {
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%vtableptr = bitcast i8* %obj to [3 x i8*]**
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%vtable = load [3 x i8*]*, [3 x i8*]** %vtableptr
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; CHECK: [[VT3:%[^ ]*]] = bitcast [3 x i8*]* {{.*}} to i8*
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%vtablei8 = bitcast [3 x i8*]* %vtable to i8*
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%pair = call {i8*, i1} @llvm.type.checked.load(i8* %vtablei8, i32 16, metadata !"typeid")
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%fptr = extractvalue {i8*, i1} %pair, 0
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%fptr_casted = bitcast i8* %fptr to i32 (i8*)*
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; CHECK: [[VTGEP3:%[^ ]*]] = getelementptr i8, i8* [[VT3]], i32 -4
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; CHECK: [[VTBC3:%[^ ]*]] = bitcast i8* [[VTGEP3]] to i32*
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; CHECK: [[VTLOAD3:%[^ ]*]] = load i32, i32* [[VTBC3]]
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%result = call i32 %fptr_casted(i8* %obj)
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; CHECK: ret i32 [[VTLOAD3]]
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ret i32 %result
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}
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declare {i8*, i1} @llvm.type.checked.load(i8*, i32, metadata)
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declare void @llvm.assume(i1)
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declare void @__cxa_pure_virtual()
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; CHECK: [[T8]] = !{i32 8, !"typeid"}
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; CHECK: [[T0]] = !{i32 0, !"typeid"}
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!0 = !{i32 0, !"typeid"}
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