1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs --version 2 2;; Check the cases involving internal CFI instrumented functions where we do not expect functions to be merged. 3; RUN: opt -S -passes=mergefunc < %s | FileCheck %s 4; RUN: opt -S -passes=mergefunc,lowertypetests < %s | FileCheck --check-prefix=LOWERTYPETESTS %s 5 6target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 7target triple = "x86_64-unknown-linux" 8 9@0 = private unnamed_addr constant { i16, i16, [12 x i8] } { i16 -1, i16 0, [12 x i8] c"'int (int)'\00" } 10 11; Function Attrs: noinline nounwind optnone 12define dso_local i32 @f(i32 noundef %arg) #0 !type !3 !type !4 { 13entry: 14 %arg.addr = alloca i32, align 4 15 %a = alloca i32, align 4 16 %b = alloca i32, align 4 17 store i32 %arg, ptr %arg.addr, align 4 18 store i32 0, ptr %b, align 4 19 %0 = load i32, ptr %arg.addr, align 4 20 %cmp = icmp sgt i32 %0, 0 21 br i1 %cmp, label %if.then, label %if.end 22 23if.then: ; preds = %entry 24 store i32 1, ptr %a, align 4 25 br label %if.end 26 27if.end: ; preds = %if.then, %entry 28 %1 = load i32, ptr %a, align 4 29 %2 = load i32, ptr %b, align 4 30 %add = add nsw i32 %1, %2 31 ret i32 %add 32} 33 34; Function Attrs: noinline nounwind optnone 35define dso_local i32 @f_thunk(i32 noundef %arg) #0 !type !3 !type !4 { 36entry: 37 %arg.addr = alloca i32, align 4 38 %a = alloca i32, align 4 39 %b = alloca i32, align 4 40 store i32 %arg, ptr %arg.addr, align 4 41 store i32 0, ptr %b, align 4 42 %0 = load i32, ptr %arg.addr, align 4 43 %cmp = icmp sgt i32 %0, 0 44 br i1 %cmp, label %if.then, label %if.end 45 46if.then: ; preds = %entry 47 store i32 1, ptr %a, align 4 48 br label %if.end 49 50if.end: ; preds = %if.then, %entry 51 %1 = load i32, ptr %a, align 4 52 %2 = load i32, ptr %b, align 4 53 %add = add nsw i32 %1, %2 54 ret i32 %add 55} 56 57; Function Attrs: noinline nounwind optnone 58define dso_local i32 @g(i32 noundef %b) #0 !type !3 !type !4 { 59entry: 60 %b.addr = alloca i32, align 4 61 %fp = alloca ptr, align 8 62 store i32 %b, ptr %b.addr, align 4 63 %0 = load i32, ptr %b.addr, align 4 64 %tobool = icmp ne i32 %0, 0 65 %1 = zext i1 %tobool to i64 66 %cond = select i1 %tobool, ptr @f, ptr @f_thunk 67 store ptr %cond, ptr %fp, align 8 68 %2 = load ptr, ptr %fp, align 8 69 %3 = call i1 @llvm.type.test(ptr %2, metadata !"_ZTSFiiE"), !nosanitize !5 70 br i1 %3, label %cont, label %trap, !nosanitize !5 71 72trap: ; preds = %entry 73 call void @llvm.ubsantrap(i8 2) #3, !nosanitize !5 74 unreachable, !nosanitize !5 75 76cont: ; preds = %entry 77 %4 = load i32, ptr %b.addr, align 4 78 %call = call i32 %2(i32 noundef %4) 79 ret i32 %call 80} 81 82; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none) 83declare i1 @llvm.type.test(ptr, metadata) #1 84 85; Function Attrs: cold noreturn nounwind 86declare void @llvm.ubsantrap(i8 immarg) #2 87 88attributes #0 = { noinline nounwind optnone "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+cx8,+mmx,+sse,+sse2,+x87" } 89attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) } 90attributes #2 = { cold noreturn nounwind } 91attributes #3 = { noreturn nounwind } 92 93!llvm.module.flags = !{!0, !1} 94 95!0 = !{i32 1, !"wchar_size", i32 4} 96!1 = !{i32 4, !"CFI Canonical Jump Tables", i32 0} 97!3 = !{i64 0, !"_ZTSFiiE"} 98!4 = !{i64 0, !"_ZTSFiiE.generalized"} 99!5 = !{} 100; CHECK-LABEL: define dso_local i32 @f 101; CHECK-SAME: (i32 noundef [[ARG:%.*]]) #[[ATTR0:[0-9]+]] !type [[META2:![0-9]+]] !type [[META3:![0-9]+]] { 102; CHECK-NEXT: entry: 103; CHECK-NEXT: [[ARG_ADDR:%.*]] = alloca i32, align 4 104; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4 105; CHECK-NEXT: [[B:%.*]] = alloca i32, align 4 106; CHECK-NEXT: store i32 [[ARG]], ptr [[ARG_ADDR]], align 4 107; CHECK-NEXT: store i32 0, ptr [[B]], align 4 108; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[ARG_ADDR]], align 4 109; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[TMP0]], 0 110; CHECK-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]] 111; CHECK: if.then: 112; CHECK-NEXT: store i32 1, ptr [[A]], align 4 113; CHECK-NEXT: br label [[IF_END]] 114; CHECK: if.end: 115; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr [[A]], align 4 116; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[B]], align 4 117; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[TMP1]], [[TMP2]] 118; CHECK-NEXT: ret i32 [[ADD]] 119; 120; 121; CHECK-LABEL: define dso_local i32 @g 122; CHECK-SAME: (i32 noundef [[B:%.*]]) #[[ATTR0]] !type [[META2]] !type [[META3]] { 123; CHECK-NEXT: entry: 124; CHECK-NEXT: [[B_ADDR:%.*]] = alloca i32, align 4 125; CHECK-NEXT: [[FP:%.*]] = alloca ptr, align 8 126; CHECK-NEXT: store i32 [[B]], ptr [[B_ADDR]], align 4 127; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[B_ADDR]], align 4 128; CHECK-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[TMP0]], 0 129; CHECK-NEXT: [[TMP1:%.*]] = zext i1 [[TOBOOL]] to i64 130; CHECK-NEXT: [[COND:%.*]] = select i1 [[TOBOOL]], ptr @f, ptr @f_thunk 131; CHECK-NEXT: store ptr [[COND]], ptr [[FP]], align 8 132; CHECK-NEXT: [[TMP2:%.*]] = load ptr, ptr [[FP]], align 8 133; CHECK-NEXT: [[TMP3:%.*]] = call i1 @llvm.type.test(ptr [[TMP2]], metadata !"_ZTSFiiE"), !nosanitize [[META4:![0-9]+]] 134; CHECK-NEXT: br i1 [[TMP3]], label [[CONT:%.*]], label [[TRAP:%.*]], !nosanitize [[META4]] 135; CHECK: trap: 136; CHECK-NEXT: call void @llvm.ubsantrap(i8 2) #[[ATTR3:[0-9]+]], !nosanitize [[META4]] 137; CHECK-NEXT: unreachable, !nosanitize [[META4]] 138; CHECK: cont: 139; CHECK-NEXT: [[TMP4:%.*]] = load i32, ptr [[B_ADDR]], align 4 140; CHECK-NEXT: [[CALL:%.*]] = call i32 [[TMP2]](i32 noundef [[TMP4]]) 141; CHECK-NEXT: ret i32 [[CALL]] 142; 143; 144; CHECK-LABEL: define dso_local i32 @f_thunk 145; CHECK-SAME: (i32 noundef [[TMP0:%.*]]) #[[ATTR0]] !type [[META2]] !type [[META3]] { 146; CHECK-NEXT: [[TMP2:%.*]] = tail call i32 @f(i32 noundef [[TMP0]]) #[[ATTR0]] 147; CHECK-NEXT: ret i32 [[TMP2]] 148; 149; 150; LOWERTYPETESTS-LABEL: define dso_local i32 @f 151; LOWERTYPETESTS-SAME: (i32 noundef [[ARG:%.*]]) #[[ATTR0:[0-9]+]] !type [[META2:![0-9]+]] !type [[META3:![0-9]+]] { 152; LOWERTYPETESTS-NEXT: entry: 153; LOWERTYPETESTS-NEXT: [[ARG_ADDR:%.*]] = alloca i32, align 4 154; LOWERTYPETESTS-NEXT: [[A:%.*]] = alloca i32, align 4 155; LOWERTYPETESTS-NEXT: [[B:%.*]] = alloca i32, align 4 156; LOWERTYPETESTS-NEXT: store i32 [[ARG]], ptr [[ARG_ADDR]], align 4 157; LOWERTYPETESTS-NEXT: store i32 0, ptr [[B]], align 4 158; LOWERTYPETESTS-NEXT: [[TMP0:%.*]] = load i32, ptr [[ARG_ADDR]], align 4 159; LOWERTYPETESTS-NEXT: [[CMP:%.*]] = icmp sgt i32 [[TMP0]], 0 160; LOWERTYPETESTS-NEXT: br i1 [[CMP]], label [[IF_THEN:%.*]], label [[IF_END:%.*]] 161; LOWERTYPETESTS: if.then: 162; LOWERTYPETESTS-NEXT: store i32 1, ptr [[A]], align 4 163; LOWERTYPETESTS-NEXT: br label [[IF_END]] 164; LOWERTYPETESTS: if.end: 165; LOWERTYPETESTS-NEXT: [[TMP1:%.*]] = load i32, ptr [[A]], align 4 166; LOWERTYPETESTS-NEXT: [[TMP2:%.*]] = load i32, ptr [[B]], align 4 167; LOWERTYPETESTS-NEXT: [[ADD:%.*]] = add nsw i32 [[TMP1]], [[TMP2]] 168; LOWERTYPETESTS-NEXT: ret i32 [[ADD]] 169; 170; 171; LOWERTYPETESTS-LABEL: define dso_local i32 @g 172; LOWERTYPETESTS-SAME: (i32 noundef [[B:%.*]]) #[[ATTR0]] !type [[META2]] !type [[META3]] { 173; LOWERTYPETESTS-NEXT: entry: 174; LOWERTYPETESTS-NEXT: [[B_ADDR:%.*]] = alloca i32, align 4 175; LOWERTYPETESTS-NEXT: [[FP:%.*]] = alloca ptr, align 8 176; LOWERTYPETESTS-NEXT: store i32 [[B]], ptr [[B_ADDR]], align 4 177; LOWERTYPETESTS-NEXT: [[TMP0:%.*]] = load i32, ptr [[B_ADDR]], align 4 178; LOWERTYPETESTS-NEXT: [[TOBOOL:%.*]] = icmp ne i32 [[TMP0]], 0 179; LOWERTYPETESTS-NEXT: [[TMP1:%.*]] = zext i1 [[TOBOOL]] to i64 180; LOWERTYPETESTS-NEXT: [[COND:%.*]] = select i1 [[TOBOOL]], ptr @.cfi.jumptable, ptr getelementptr inbounds ([2 x [8 x i8]], ptr @.cfi.jumptable, i64 0, i64 1) 181; LOWERTYPETESTS-NEXT: store ptr [[COND]], ptr [[FP]], align 8 182; LOWERTYPETESTS-NEXT: [[TMP2:%.*]] = load ptr, ptr [[FP]], align 8 183; LOWERTYPETESTS-NEXT: [[TMP3:%.*]] = ptrtoint ptr [[TMP2]] to i64 184; LOWERTYPETESTS-NEXT: [[TMP4:%.*]] = sub i64 [[TMP3]], ptrtoint (ptr @.cfi.jumptable to i64) 185; LOWERTYPETESTS-NEXT: [[TMP5:%.*]] = lshr i64 [[TMP4]], 3 186; LOWERTYPETESTS-NEXT: [[TMP6:%.*]] = shl i64 [[TMP4]], 61 187; LOWERTYPETESTS-NEXT: [[TMP7:%.*]] = or i64 [[TMP5]], [[TMP6]] 188; LOWERTYPETESTS-NEXT: [[TMP8:%.*]] = icmp ule i64 [[TMP7]], 1 189; LOWERTYPETESTS-NEXT: br i1 [[TMP8]], label [[CONT:%.*]], label [[TRAP:%.*]], !nosanitize [[META4:![0-9]+]] 190; LOWERTYPETESTS: trap: 191; LOWERTYPETESTS-NEXT: call void @llvm.ubsantrap(i8 2) #[[ATTR4:[0-9]+]], !nosanitize [[META4]] 192; LOWERTYPETESTS-NEXT: unreachable, !nosanitize [[META4]] 193; LOWERTYPETESTS: cont: 194; LOWERTYPETESTS-NEXT: [[TMP9:%.*]] = load i32, ptr [[B_ADDR]], align 4 195; LOWERTYPETESTS-NEXT: [[CALL:%.*]] = call i32 [[TMP2]](i32 noundef [[TMP9]]) 196; LOWERTYPETESTS-NEXT: ret i32 [[CALL]] 197; 198; 199; LOWERTYPETESTS-LABEL: define dso_local i32 @f_thunk 200; LOWERTYPETESTS-SAME: (i32 noundef [[TMP0:%.*]]) #[[ATTR0]] !type [[META2]] !type [[META3]] { 201; LOWERTYPETESTS-NEXT: [[TMP2:%.*]] = tail call i32 @f(i32 noundef [[TMP0]]) #[[ATTR0]] 202; LOWERTYPETESTS-NEXT: ret i32 [[TMP2]] 203; 204; 205; LOWERTYPETESTS-LABEL: define private void @.cfi.jumptable 206; LOWERTYPETESTS-SAME: () #[[ATTR3:[0-9]+]] align 8 { 207; LOWERTYPETESTS-NEXT: entry: 208; LOWERTYPETESTS-NEXT: call void asm sideeffect "jmp ${0:c}@plt\0Aint3\0Aint3\0Aint3\0Ajmp ${1:c}@plt\0Aint3\0Aint3\0Aint3\0A", "s,s"(ptr @f, ptr @f_thunk) 209; LOWERTYPETESTS-NEXT: unreachable 210; 211