1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-attributes --include-generated-funcs --version 4 2; RUN: opt < %s -passes='lowertypetests,default<O3>' -S | FileCheck %s 3 4; This IR is based of the following C++ 5; which was compiled with: 6; clang -cc1 -fexceptions -fcxx-exceptions \ 7; -std=c++11 -internal-isystem llvm-project/build/lib/clang/17/include \ 8; -nostdsysteminc -triple x86_64-unknown-linux -fsanitize=cfi-icall \ 9; -fsanitize-cfi-cross-dso -fsanitize-trap=cfi-icall -Oz -S -emit-llvm 10; void (*catch_ptr)(int); 11; void throw_e (int num) { 12; if (num) throw 20; 13; } 14; void call_catch(int num) { 15; catch_ptr = &throw_e; 16; try{ 17; catch_ptr(num); 18; } catch (int i) { 19; } 20; } 21 22target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 23target triple = "x86_64-unknown-linux" 24 25@catch_ptr = local_unnamed_addr global ptr null, align 8 26@_ZTIi = external constant ptr 27@llvm.used = appending global [1 x ptr] [ptr @__cfi_check_fail], section "llvm.metadata" 28 29; Function Attrs: minsize mustprogress optsize 30define dso_local void @_Z7throw_ei(i32 noundef %num) #0 !type !4 !type !5 !type !6 { 31entry: 32 %tobool.not = icmp eq i32 %num, 0 33 br i1 %tobool.not, label %if.end, label %if.then 34 35if.then: ; preds = %entry 36 %exception = tail call ptr @__cxa_allocate_exception(i64 4) #5 37 store i32 20, ptr %exception, align 16, !tbaa !7 38 tail call void @__cxa_throw(ptr nonnull %exception, ptr nonnull @_ZTIi, ptr null) #6 39 unreachable 40 41if.end: ; preds = %entry 42 ret void 43} 44 45declare ptr @__cxa_allocate_exception(i64) local_unnamed_addr 46 47declare void @__cxa_throw(ptr, ptr, ptr) local_unnamed_addr 48 49; Function Attrs: minsize mustprogress optsize 50define dso_local void @_Z10call_catchi(i32 noundef %num) local_unnamed_addr #0 personality ptr @__gxx_personality_v0 !type !4 !type !5 !type !6 { 51entry: 52 store ptr @_Z7throw_ei, ptr @catch_ptr, align 8, !tbaa !11 53 %0 = tail call i1 @llvm.type.test(ptr nonnull @_Z7throw_ei, metadata !"_ZTSFviE"), !nosanitize !13 54 br i1 %0, label %cfi.cont, label %cfi.slowpath, !prof !14, !nosanitize !13 55 56cfi.slowpath: ; preds = %entry 57 tail call void @__cfi_slowpath(i64 -8738933900360652027, ptr nonnull @_Z7throw_ei) #5, !nosanitize !13 58 br label %cfi.cont, !nosanitize !13 59 60cfi.cont: ; preds = %cfi.slowpath, %entry 61 invoke void @_Z7throw_ei(i32 noundef %num) #7 62 to label %try.cont unwind label %lpad 63 64lpad: ; preds = %cfi.cont 65 %1 = landingpad { ptr, i32 } 66 catch ptr @_ZTIi 67 %2 = extractvalue { ptr, i32 } %1, 1 68 %3 = tail call i32 @llvm.eh.typeid.for.p0(ptr nonnull @_ZTIi) #5 69 %matches = icmp eq i32 %2, %3 70 br i1 %matches, label %catch, label %eh.resume 71 72catch: ; preds = %lpad 73 %4 = extractvalue { ptr, i32 } %1, 0 74 %5 = tail call ptr @__cxa_begin_catch(ptr %4) #5 75 tail call void @__cxa_end_catch() #5 76 br label %try.cont 77 78try.cont: ; preds = %cfi.cont, %catch 79 ret void 80 81eh.resume: ; preds = %lpad 82 resume { ptr, i32 } %1 83} 84 85; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) 86declare i1 @llvm.type.test(ptr, metadata) #1 87 88declare void @__cfi_slowpath(i64, ptr) local_unnamed_addr 89 90declare i32 @__gxx_personality_v0(...) 91 92; Function Attrs: nofree nosync nounwind memory(none) 93declare i32 @llvm.eh.typeid.for.p0(ptr) #2 94 95declare ptr @__cxa_begin_catch(ptr) local_unnamed_addr 96 97declare void @__cxa_end_catch() local_unnamed_addr 98 99; Function Attrs: minsize optsize 100define weak_odr hidden void @__cfi_check_fail(ptr noundef %0, ptr noundef %1) #3 { 101entry: 102 %.not = icmp eq ptr %0, null, !nosanitize !13 103 br i1 %.not, label %trap, label %cont, !nosanitize !13 104 105trap: ; preds = %cont, %entry 106 tail call void @llvm.ubsantrap(i8 2) #8, !nosanitize !13 107 unreachable, !nosanitize !13 108 109cont: ; preds = %entry 110 %2 = load i8, ptr %0, align 4, !nosanitize !13 111 %switch = icmp ult i8 %2, 5 112 br i1 %switch, label %trap, label %cont6 113 114cont6: ; preds = %cont 115 ret void, !nosanitize !13 116} 117 118; Function Attrs: cold noreturn nounwind 119declare void @llvm.ubsantrap(i8 immarg) #4 120 121define weak void @__cfi_check(i64 %0, ptr %1, ptr %2) local_unnamed_addr { 122entry: 123 tail call void @llvm.trap() 124 unreachable 125} 126 127; Function Attrs: cold noreturn nounwind 128declare void @llvm.trap() #4 129 130attributes #0 = { minsize mustprogress optsize "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+cx8,+mmx,+sse,+sse2,+x87" } 131attributes #1 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) } 132attributes #2 = { nofree nosync nounwind memory(none) } 133attributes #3 = { minsize optsize "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+cx8,+mmx,+sse,+sse2,+x87" } 134attributes #4 = { cold noreturn nounwind } 135attributes #5 = { nounwind } 136attributes #6 = { noreturn } 137attributes #7 = { minsize optsize } 138attributes #8 = { noreturn nounwind } 139 140!llvm.module.flags = !{!0, !1, !2} 141!llvm.ident = !{!3} 142 143!0 = !{i32 1, !"wchar_size", i32 4} 144!1 = !{i32 4, !"Cross-DSO CFI", i32 1} 145!2 = !{i32 4, !"CFI Canonical Jump Tables", i32 0} 146!3 = !{!"clang version 17.0.2"} 147!4 = !{i64 0, !"_ZTSFviE"} 148!5 = !{i64 0, !"_ZTSFviE.generalized"} 149!6 = !{i64 0, i64 -8738933900360652027} 150!7 = !{!8, !8, i64 0} 151!8 = !{!"int", !9, i64 0} 152!9 = !{!"omnipotent char", !10, i64 0} 153!10 = !{!"Simple C++ TBAA"} 154!11 = !{!12, !12, i64 0} 155!12 = !{!"any pointer", !9, i64 0} 156!13 = !{} 157!14 = !{!"branch_weights", i32 1048575, i32 1} 158; CHECK: Function Attrs: minsize mustprogress optsize 159; CHECK-LABEL: define dso_local void @_Z7throw_ei( 160; CHECK-SAME: i32 noundef [[NUM:%.*]]) #[[ATTR0:[0-9]+]] !type [[META4:![0-9]+]] !type [[META5:![0-9]+]] !type [[META6:![0-9]+]] { 161; CHECK-NEXT: entry: 162; CHECK-NEXT: [[TOBOOL_NOT:%.*]] = icmp eq i32 [[NUM]], 0 163; CHECK-NEXT: br i1 [[TOBOOL_NOT]], label [[IF_END:%.*]], label [[IF_THEN:%.*]] 164; CHECK: if.then: 165; CHECK-NEXT: [[EXCEPTION:%.*]] = tail call ptr @__cxa_allocate_exception(i64 4) #[[ATTR6:[0-9]+]] 166; CHECK-NEXT: store i32 20, ptr [[EXCEPTION]], align 16, !tbaa [[TBAA7:![0-9]+]] 167; CHECK-NEXT: tail call void @__cxa_throw(ptr nonnull [[EXCEPTION]], ptr nonnull @_ZTIi, ptr null) #[[ATTR7:[0-9]+]] 168; CHECK-NEXT: unreachable 169; CHECK: if.end: 170; CHECK-NEXT: ret void 171; 172; 173; CHECK: Function Attrs: minsize mustprogress optsize 174; CHECK-LABEL: define dso_local void @_Z10call_catchi( 175; CHECK-SAME: i32 noundef [[NUM:%.*]]) local_unnamed_addr #[[ATTR0]] personality ptr @__gxx_personality_v0 !type [[META4]] !type [[META5]] !type [[META6]] { 176; CHECK-NEXT: entry: 177; CHECK-NEXT: store ptr @_Z7throw_ei.cfi_jt, ptr @catch_ptr, align 8, !tbaa [[TBAA11:![0-9]+]] 178; CHECK-NEXT: invoke void @_Z7throw_ei.cfi_jt(i32 noundef [[NUM]]) #[[ATTR8:[0-9]+]] 179; CHECK-NEXT: to label [[TRY_CONT:%.*]] unwind label [[LPAD:%.*]], !callees [[META13:![0-9]+]] 180; CHECK: lpad: 181; CHECK-NEXT: [[TMP0:%.*]] = landingpad { ptr, i32 } 182; CHECK-NEXT: catch ptr @_ZTIi 183; CHECK-NEXT: [[TMP1:%.*]] = extractvalue { ptr, i32 } [[TMP0]], 1 184; CHECK-NEXT: [[TMP2:%.*]] = tail call i32 @llvm.eh.typeid.for.p0(ptr nonnull @_ZTIi) #[[ATTR6]] 185; CHECK-NEXT: [[MATCHES:%.*]] = icmp eq i32 [[TMP1]], [[TMP2]] 186; CHECK-NEXT: br i1 [[MATCHES]], label [[CATCH:%.*]], label [[EH_RESUME:%.*]] 187; CHECK: catch: 188; CHECK-NEXT: [[TMP3:%.*]] = extractvalue { ptr, i32 } [[TMP0]], 0 189; CHECK-NEXT: [[TMP4:%.*]] = tail call ptr @__cxa_begin_catch(ptr [[TMP3]]) #[[ATTR6]] 190; CHECK-NEXT: tail call void @__cxa_end_catch() #[[ATTR6]] 191; CHECK-NEXT: br label [[TRY_CONT]] 192; CHECK: try.cont: 193; CHECK-NEXT: ret void 194; CHECK: eh.resume: 195; CHECK-NEXT: resume { ptr, i32 } [[TMP0]] 196; 197; 198; CHECK: Function Attrs: minsize optsize 199; CHECK-LABEL: define weak_odr hidden void @__cfi_check_fail( 200; CHECK-SAME: ptr noundef [[TMP0:%.*]], ptr noundef [[TMP1:%.*]]) #[[ATTR2:[0-9]+]] { 201; CHECK-NEXT: entry: 202; CHECK-NEXT: [[DOTNOT:%.*]] = icmp eq ptr [[TMP0]], null, !nosanitize [[META14:![0-9]+]] 203; CHECK-NEXT: br i1 [[DOTNOT]], label [[TRAP:%.*]], label [[CONT:%.*]], !nosanitize [[META14]] 204; CHECK: trap: 205; CHECK-NEXT: tail call void @llvm.ubsantrap(i8 2) #[[ATTR9:[0-9]+]], !nosanitize [[META14]] 206; CHECK-NEXT: unreachable, !nosanitize [[META14]] 207; CHECK: cont: 208; CHECK-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP0]], align 4, !nosanitize [[META14]] 209; CHECK-NEXT: [[SWITCH:%.*]] = icmp ult i8 [[TMP2]], 5 210; CHECK-NEXT: br i1 [[SWITCH]], label [[TRAP]], label [[CONT6:%.*]] 211; CHECK: cont6: 212; CHECK-NEXT: ret void, !nosanitize [[META14]] 213; 214; 215; CHECK-LABEL: define weak void @__cfi_check( 216; CHECK-SAME: i64 [[TMP0:%.*]], ptr [[TMP1:%.*]], ptr [[TMP2:%.*]]) local_unnamed_addr { 217; CHECK-NEXT: entry: 218; CHECK-NEXT: tail call void @llvm.trap() 219; CHECK-NEXT: unreachable 220; 221; 222; CHECK: Function Attrs: naked nocf_check noinline 223; CHECK-LABEL: define internal void @_Z7throw_ei.cfi_jt( 224; CHECK-SAME: ) #[[ATTR5:[0-9]+]] align 8 { 225; CHECK-NEXT: entry: 226; CHECK-NEXT: tail call void asm sideeffect "jmp ${0:c}@plt\0Aint3\0Aint3\0Aint3\0A", "s"(ptr nonnull @_Z7throw_ei) #[[ATTR6]] 227; CHECK-NEXT: unreachable 228; 229;. 230; CHECK: [[META4]] = !{i64 0, !"_ZTSFviE"} 231; CHECK: [[META5]] = !{i64 0, !"_ZTSFviE.generalized"} 232; CHECK: [[META6]] = !{i64 0, i64 -8738933900360652027} 233; CHECK: [[TBAA7]] = !{[[META8:![0-9]+]], [[META8]], i64 0} 234; CHECK: [[META8]] = !{!"int", [[META9:![0-9]+]], i64 0} 235; CHECK: [[META9]] = !{!"omnipotent char", [[META10:![0-9]+]], i64 0} 236; CHECK: [[META10]] = !{!"Simple C++ TBAA"} 237; CHECK: [[TBAA11]] = !{[[META12:![0-9]+]], [[META12]], i64 0} 238; CHECK: [[META12]] = !{!"any pointer", [[META9]], i64 0} 239; CHECK: [[META13]] = !{ptr @_Z7throw_ei.cfi_jt} 240; CHECK: [[META14]] = !{} 241;. 242