1 ; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s 2 3 ; This test was generated from the following source: 4 ; 5 ; class SomeClass { 6 ; public: 7 ; SomeClass(); 8 ; ~SomeClass(); 9 ; }; 10 ; 11 ; void test() { 12 ; SomeClass obj; 13 ; may_throw(); 14 ; } 15 16 17 ; ModuleID = 'min-unwind.cpp' 18 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 19 target triple = "x86_64-pc-windows-msvc" 20 21 %class.SomeClass = type { [28 x i32] } 22 23 ; The function entry should be rewritten like this. 24 ; CHECK: define void @_Z4testv() 25 ; CHECK: entry: 26 ; CHECK: [[OBJ_PTR:\%.+]] = alloca %class.SomeClass, align 4 27 ; CHECK: call void @_ZN9SomeClassC1Ev(%class.SomeClass* [[OBJ_PTR]]) 28 ; CHECK: call void (...) @llvm.frameescape(%class.SomeClass* [[OBJ_PTR]]) 29 ; CHECK: invoke void @_Z9may_throwv() 30 ; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]+]] 31 32 ; Function Attrs: uwtable 33 define void @_Z4testv() #0 { 34 entry: 35 %obj = alloca %class.SomeClass, align 4 36 %exn.slot = alloca i8* 37 %ehselector.slot = alloca i32 38 call void @_ZN9SomeClassC1Ev(%class.SomeClass* %obj) 39 invoke void @_Z9may_throwv() 40 to label %invoke.cont unwind label %lpad 41 42 invoke.cont: ; preds = %entry 43 call void @_ZN9SomeClassD1Ev(%class.SomeClass* %obj) 44 ret void 45 46 ; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry 47 ; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) 48 ; CHECK-NEXT: cleanup 49 ; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...) @llvm.eh.actions(i32 0, void (i8*, i8*)* @_Z4testv.cleanup) 50 ; CHECK-NEXT: indirectbr i8* [[RECOVER]], [] 51 52 lpad: ; preds = %entry 53 %tmp = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) 54 cleanup 55 %tmp1 = extractvalue { i8*, i32 } %tmp, 0 56 store i8* %tmp1, i8** %exn.slot 57 %tmp2 = extractvalue { i8*, i32 } %tmp, 1 58 store i32 %tmp2, i32* %ehselector.slot 59 call void @_ZN9SomeClassD1Ev(%class.SomeClass* %obj) 60 br label %eh.resume 61 62 ; CHECK-NOT: eh.resume: 63 64 eh.resume: ; preds = %lpad 65 %exn = load i8*, i8** %exn.slot 66 %sel = load i32, i32* %ehselector.slot 67 %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn, 0 68 %lpad.val2 = insertvalue { i8*, i32 } %lpad.val, i32 %sel, 1 69 resume { i8*, i32 } %lpad.val2 70 71 ; CHECK: } 72 } 73 74 ; This cleanup handler should be outlined. 75 ; CHECK: define internal void @_Z4testv.cleanup(i8*, i8*) 76 ; CHECK: entry: 77 ; CHECK: [[RECOVER_OBJ:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @_Z4testv to i8*), i8* %1, i32 0) 78 ; CHECK: [[OBJ_PTR1:\%.+]] = bitcast i8* [[RECOVER_OBJ]] to %class.SomeClass* 79 ; CHECK: call void @_ZN9SomeClassD1Ev(%class.SomeClass* [[OBJ_PTR1]]) 80 ; CHECK: ret void 81 ; CHECK: } 82 83 declare void @_ZN9SomeClassC1Ev(%class.SomeClass*) #1 84 85 declare void @_Z9may_throwv() #1 86 87 declare i32 @__CxxFrameHandler3(...) 88 89 declare void @_ZN9SomeClassD1Ev(%class.SomeClass*) #1 90 91 attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 92 attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 93 attributes #2 = { noinline noreturn nounwind } 94 attributes #3 = { noreturn nounwind } 95 attributes #4 = { nounwind } 96 97 !llvm.ident = !{!0} 98 99 !0 = !{!"clang version 3.7.0 (trunk 226027)"} 100
