1 ; RUN: opt -lint -disable-output < %s 2 3 ; This test is meant to prove that the verifier does not report errors for correct 4 ; use of the llvm.eh.begincatch and llvm.eh.endcatch intrinsics. 5 6 target triple = "x86_64-pc-windows-msvc" 7 8 declare void @llvm.eh.begincatch(i8*, i8*) 9 10 declare void @llvm.eh.endcatch() 11 12 @_ZTIi = external constant i8* 13 14 ; Function Attrs: uwtable 15 define void @test_ref_clean() personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) { 16 entry: 17 invoke void @_Z9may_throwv() 18 to label %try.cont unwind label %lpad 19 20 lpad: ; preds = %entry 21 %0 = landingpad { i8*, i32 } 22 catch i8* bitcast (i8** @_ZTIi to i8*) 23 %exn = extractvalue { i8*, i32 } %0, 0 24 %sel = extractvalue { i8*, i32 } %0, 1 25 %1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) 26 %matches = icmp eq i32 %sel, %1 27 br i1 %matches, label %catch, label %eh.resume 28 29 catch: ; preds = %lpad 30 call void @llvm.eh.begincatch(i8* %exn, i8* null) 31 call void @_Z10handle_intv() 32 br label %invoke.cont2 33 34 invoke.cont2: ; preds = %catch 35 call void @llvm.eh.endcatch() 36 br label %try.cont 37 38 try.cont: ; preds = %invoke.cont2, %entry 39 ret void 40 41 eh.resume: ; preds = %catch.dispatch 42 resume { i8*, i32 } %0 43 } 44 45 ; Function Attrs: uwtable 46 define void @test_ref_clean_multibranch() personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) { 47 entry: 48 invoke void @_Z9may_throwv() 49 to label %invoke.cont unwind label %lpad 50 51 invoke.cont: 52 invoke void @_Z9may_throwv() 53 to label %invoke.cont unwind label %lpad1 54 55 lpad: ; preds = %entry 56 %0 = landingpad { i8*, i32 } 57 catch i8* bitcast (i8** @_ZTIi to i8*) 58 %exn = extractvalue { i8*, i32 } %0, 0 59 %sel = extractvalue { i8*, i32 } %0, 1 60 %1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) 61 %matches = icmp eq i32 %sel, %1 62 br i1 %matches, label %catch, label %eh.resume 63 64 invoke void @_Z9may_throwv() 65 to label %try.cont unwind label %lpad 66 67 lpad1: ; preds = %entry 68 %l1.0 = landingpad { i8*, i32 } 69 cleanup 70 catch i8* bitcast (i8** @_ZTIi to i8*) 71 %exn1 = extractvalue { i8*, i32 } %l1.0, 0 72 %sel1 = extractvalue { i8*, i32 } %l1.0, 1 73 %l1.1 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) 74 %matchesl1 = icmp eq i32 %sel1, %l1.1 75 br i1 %matchesl1, label %catch, label %eh.resume 76 77 catch: ; preds = %lpad, %lpad1 78 %exn2 = phi i8* [%exn, %lpad], [%exn1, %lpad1] 79 %sel2 = phi i32 [%sel, %lpad], [%sel1, %lpad1] 80 call void @llvm.eh.begincatch(i8* %exn2, i8* null) 81 call void @_Z10handle_intv() 82 %matches1 = icmp eq i32 %sel2, 0 83 br i1 %matches1, label %invoke.cont2, label %invoke.cont3 84 85 invoke.cont2: ; preds = %catch 86 call void @llvm.eh.endcatch() 87 br label %try.cont 88 89 invoke.cont3: ; preds = %catch 90 call void @llvm.eh.endcatch() 91 br label %eh.resume 92 93 try.cont: ; preds = %invoke.cont2, %entry 94 ret void 95 96 eh.resume: ; preds = %catch.dispatch 97 %lpad.val = insertvalue { i8*, i32 } undef, i32 0, 1 98 resume { i8*, i32 } %lpad.val 99 } 100 101 declare void @_Z9may_throwv() 102 103 declare i32 @__CxxFrameHandler3(...) 104 105 ; Function Attrs: nounwind readnone 106 declare i32 @llvm.eh.typeid.for(i8*) 107 108 declare void @_Z10handle_intv() 109 110
