1; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=3 -sanitizer-coverage-trace-pc -S | FileCheck %s --check-prefix=CHECK 2 3; Generated from this C++ source: 4; $ clang -O2 t.cpp -S -emit-llvm 5; void g(); 6; struct Foo { Foo(); ~Foo(); }; 7; int f() { 8; Foo v; 9; g(); 10; try { 11; g(); 12; } catch (int e) { 13; g(); 14; } catch (...) { 15; g(); 16; } 17; return 0; 18; } 19 20; FIXME: We need to do more than this. In particular, __sanitizer_cov callbacks 21; in funclets need token bundles. 22 23; CHECK-LABEL: define i32 @"\01?f@@YAHXZ"() 24; CHECK: catch.dispatch: 25; CHECK-NEXT: catchswitch within none [label %catch3, label %catch] unwind label %ehcleanup 26 27; ModuleID = 't.cpp' 28source_filename = "t.cpp" 29target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" 30target triple = "x86_64-pc-windows-msvc19.10.24728" 31 32%rtti.TypeDescriptor2 = type { ptr, ptr, [3 x i8] } 33%struct.Foo = type { i8 } 34 35$"\01??_R0H@8" = comdat any 36 37@"\01??_7type_info@@6B@" = external constant ptr 38@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { ptr @"\01??_7type_info@@6B@", ptr null, [3 x i8] c".H\00" }, comdat 39 40; Function Attrs: uwtable 41define i32 @"\01?f@@YAHXZ"() local_unnamed_addr #0 personality ptr @__CxxFrameHandler3 { 42entry: 43 %v = alloca %struct.Foo, align 1 44 %e = alloca i32, align 4 45 call void @llvm.lifetime.start(i64 1, ptr nonnull %v) #4 46 %call = call ptr @"\01??0Foo@@QEAA@XZ"(ptr nonnull %v) 47 invoke void @"\01?g@@YAXXZ"() 48 to label %invoke.cont unwind label %ehcleanup 49 50invoke.cont: ; preds = %entry 51 invoke void @"\01?g@@YAXXZ"() 52 to label %try.cont unwind label %catch.dispatch 53 54catch.dispatch: ; preds = %invoke.cont 55 %0 = catchswitch within none [label %catch3, label %catch] unwind label %ehcleanup 56 57catch3: ; preds = %catch.dispatch 58 %1 = catchpad within %0 [ptr @"\01??_R0H@8", i32 0, ptr %e] 59 invoke void @"\01?g@@YAXXZ"() [ "funclet"(token %1) ] 60 to label %invoke.cont4 unwind label %ehcleanup 61 62invoke.cont4: ; preds = %catch3 63 catchret from %1 to label %try.cont 64 65try.cont: ; preds = %invoke.cont, %invoke.cont2, %invoke.cont4 66 call void @"\01??1Foo@@QEAA@XZ"(ptr nonnull %v) #4 67 call void @llvm.lifetime.end(i64 1, ptr nonnull %v) #4 68 ret i32 0 69 70catch: ; preds = %catch.dispatch 71 %2 = catchpad within %0 [ptr null, i32 64, ptr null] 72 invoke void @"\01?g@@YAXXZ"() [ "funclet"(token %2) ] 73 to label %invoke.cont2 unwind label %ehcleanup 74 75invoke.cont2: ; preds = %catch 76 catchret from %2 to label %try.cont 77 78ehcleanup: ; preds = %catch3, %catch, %catch.dispatch, %entry 79 %3 = cleanuppad within none [] 80 call void @"\01??1Foo@@QEAA@XZ"(ptr nonnull %v) #4 [ "funclet"(token %3) ] 81 call void @llvm.lifetime.end(i64 1, ptr nonnull %v) #4 82 cleanupret from %3 unwind to caller 83} 84 85; Function Attrs: argmemonly nounwind 86declare void @llvm.lifetime.start(i64, ptr nocapture) #1 87 88declare ptr @"\01??0Foo@@QEAA@XZ"(ptr returned) unnamed_addr #2 89 90declare void @"\01?g@@YAXXZ"() local_unnamed_addr #2 91 92declare i32 @__CxxFrameHandler3(...) 93 94; Function Attrs: nounwind 95declare void @"\01??1Foo@@QEAA@XZ"(ptr) unnamed_addr #3 96 97; Function Attrs: argmemonly nounwind 98declare void @llvm.lifetime.end(i64, ptr nocapture) #1 99 100attributes #0 = { uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 101attributes #1 = { argmemonly nounwind } 102attributes #2 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 103attributes #3 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 104attributes #4 = { nounwind } 105 106!llvm.module.flags = !{!0} 107!llvm.ident = !{!1} 108 109!0 = !{i32 1, !"PIC Level", i32 2} 110!1 = !{!"clang version 5.0.0 "} 111