1 ; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s 2 3 ; This test is based on the following code: 4 ; 5 ; void test() 6 ; { 7 ; try { 8 ; may_throw(); 9 ; } catch (...) { 10 ; handle_exception(); 11 ; } 12 ; } 13 ; 14 ; Parts of the IR have been hand-edited to simplify the test case. 15 ; The full IR will be restored when Windows C++ EH support is complete. 16 17 ; ModuleID = 'catch-all.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 ; The function entry in this case remains unchanged. 22 ; CHECK: define void @_Z4testv() 23 ; CHECK: entry: 24 ; CHECK: invoke void @_Z9may_throwv() 25 ; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]+]] 26 27 ; Function Attrs: uwtable 28 define void @_Z4testv() #0 { 29 entry: 30 %exn.slot = alloca i8* 31 %ehselector.slot = alloca i32 32 invoke void @_Z9may_throwv() 33 to label %invoke.cont unwind label %lpad 34 35 invoke.cont: ; preds = %entry 36 br label %try.cont 37 38 ; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry 39 ; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) 40 ; CHECK-NEXT: catch i8* null 41 ; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...) @llvm.eh.actions(i32 1, i8* null, i32 -1, i8* (i8*, i8*)* @_Z4testv.catch) 42 ; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %try.cont] 43 44 lpad: ; preds = %entry 45 %tmp = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) 46 catch i8* null 47 %tmp1 = extractvalue { i8*, i32 } %tmp, 0 48 store i8* %tmp1, i8** %exn.slot 49 %tmp2 = extractvalue { i8*, i32 } %tmp, 1 50 store i32 %tmp2, i32* %ehselector.slot 51 br label %catch 52 53 ; CHECK-NOT: catch: 54 55 catch: ; preds = %lpad 56 %exn = load i8*, i8** %exn.slot 57 call void @llvm.eh.begincatch(i8* %exn, i8* null) #2 58 call void @_Z16handle_exceptionv() 59 br label %invoke.cont2 60 61 ; CHECK-NOT: invoke.cont2: 62 63 invoke.cont2: ; preds = %catch 64 call void @llvm.eh.endcatch() 65 br label %try.cont 66 67 try.cont: ; preds = %invoke.cont2, %invoke.cont 68 ret void 69 70 ; CHECK: } 71 } 72 73 ; CHECK: define internal i8* @_Z4testv.catch(i8*, i8*) 74 ; CHECK: entry: 75 ; CHECK: call void @_Z16handle_exceptionv() 76 ; CHECK: ret i8* blockaddress(@_Z4testv, %try.cont) 77 ; CHECK: } 78 79 declare void @_Z9may_throwv() #1 80 81 declare i32 @__CxxFrameHandler3(...) 82 83 declare void @llvm.eh.begincatch(i8*, i8*) 84 85 declare void @_Z16handle_exceptionv() #1 86 87 declare void @llvm.eh.endcatch() 88 89 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" } 90 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" } 91 attributes #2 = { noinline noreturn nounwind } 92 attributes #3 = { nounwind } 93 attributes #4 = { noreturn nounwind } 94 95 !llvm.ident = !{!0} 96 97 !0 = !{!"clang version 3.7.0 (trunk 226027)"} 98