1 files changed, 143 insertions, 0 deletions
diff --git a/test/CodeGen/WinEH/cppeh-catch-and-throw.ll b/test/CodeGen/WinEH/cppeh-catch-and-throw.ll
new file mode 100644
index 0000000000000..c60a339f6ba27
--- /dev/null
+++ b/test/CodeGen/WinEH/cppeh-catch-and-throw.ll
@@ -0,0 +1,143 @@
+; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s
+
+; This test is based on the following code:
+;
+; class Obj {
+; public:
+;   ~Obj();
+; };
+;
+; void test(void)
+; {
+;   try {
+;     Obj o;
+;     throw 1;
+;   } catch (...) {
+;     throw;
+;   }
+; }
+
+; ModuleID = 'cppeh-catch-and-throw.cpp'
+target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-pc-windows-msvc"
+
+%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] }
+%eh.CatchableType = type { i32, i32, i32, i32, i32, i32, i32 }
+%eh.CatchableTypeArray.1 = type { i32, [1 x i32] }
+%eh.ThrowInfo = type { i32, i32, i32, i32 }
+%class.Obj = type { i8 }
+
+$"\01??_R0H@8" = comdat any
+
+$"_CT??_R0H@84" = comdat any
+
+$_CTA1H = comdat any
+
+$_TI1H = comdat any
+
+@"\01??_7type_info@@6B@" = external constant i8*
+@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat
+@__ImageBase = external constant i8
+@"_CT??_R0H@84" = linkonce_odr unnamed_addr constant %eh.CatchableType { i32 1, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0, i32 -1, i32 0, i32 4, i32 0 }, section ".xdata", comdat
+@_CTA1H = linkonce_odr unnamed_addr constant %eh.CatchableTypeArray.1 { i32 1, [1 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableType* @"_CT??_R0H@84" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32)] }, section ".xdata", comdat
+@_TI1H = linkonce_odr unnamed_addr constant %eh.ThrowInfo { i32 0, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableTypeArray.1* @_CTA1H to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, section ".xdata", comdat
+
+; This is just a minimal check to verify that main was handled by WinEHPrepare.
+; CHECK: define void @"\01?test@@YAXXZ"()
+; CHECK: entry:
+; CHECK:   call void (...) @llvm.frameescape
+; CHECK:   invoke void @_CxxThrowException
+; CHECK: }
+
+; Function Attrs: uwtable
+define void @"\01?test@@YAXXZ"() #0 {
+entry:
+  %o = alloca %class.Obj, align 1
+  %tmp = alloca i32, align 4
+  %exn.slot = alloca i8*
+  %ehselector.slot = alloca i32
+  store i32 1, i32* %tmp
+  %0 = bitcast i32* %tmp to i8*
+  invoke void @_CxxThrowException(i8* %0, %eh.ThrowInfo* @_TI1H) #3
+          to label %unreachable unwind label %lpad
+
+lpad:                                             ; preds = %entry
+  %1 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
+          catch i8* null
+  %2 = extractvalue { i8*, i32 } %1, 0
+  store i8* %2, i8** %exn.slot
+  %3 = extractvalue { i8*, i32 } %1, 1
+  store i32 %3, i32* %ehselector.slot
+  call void @"\01??1Obj@@QEAA@XZ"(%class.Obj* %o) #2
+  br label %catch
+
+catch:                                            ; preds = %lpad
+  %exn = load i8*, i8** %exn.slot
+  call void @llvm.eh.begincatch(i8* %exn, i8* null) #2
+  invoke void @_CxxThrowException(i8* null, %eh.ThrowInfo* null) #3
+          to label %unreachable unwind label %lpad1
+
+lpad1:                                            ; preds = %catch
+  %4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
+          cleanup
+  %5 = extractvalue { i8*, i32 } %4, 0
+  store i8* %5, i8** %exn.slot
+  %6 = extractvalue { i8*, i32 } %4, 1
+  store i32 %6, i32* %ehselector.slot
+  call void @llvm.eh.endcatch() #2
+  br label %eh.resume
+
+try.cont:                                         ; No predecessors!
+  ret void
+
+eh.resume:                                        ; preds = %lpad1
+  %exn2 = load i8*, i8** %exn.slot
+  %sel = load i32, i32* %ehselector.slot
+  %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn2, 0
+  %lpad.val3 = insertvalue { i8*, i32 } %lpad.val, i32 %sel, 1
+  resume { i8*, i32 } %lpad.val3
+
+unreachable:                                      ; preds = %catch, %entry
+  unreachable
+}
+
+; Verify that we inserted a stub invoke into the outlined cleanup handler.
+;
+; CHECK-LABEL: define internal void @"\01?test@@YAXXZ.cleanup"(i8*, i8*)
+; CHECK: entry:
+; CHECK:   call i8* @llvm.framerecover
+; CHECK:   call void @"\01??1Obj@@QEAA@XZ"
+; CHECK:   invoke void @llvm.donothing()
+; CHECK:           to label %[[SPLIT_LABEL:.+]] unwind label %[[LPAD_LABEL:.+]]
+;
+; CHECK: [[SPLIT_LABEL]]
+;
+; CHECK: [[LPAD_LABEL]]
+; CHECK:   landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
+; CHECK:           cleanup
+; CHECK:   unreachable
+; CHECK: }
+
+declare void @_CxxThrowException(i8*, %eh.ThrowInfo*)
+
+declare i32 @__CxxFrameHandler3(...)
+
+; Function Attrs: nounwind
+declare void @"\01??1Obj@@QEAA@XZ"(%class.Obj*) #1
+
+; Function Attrs: nounwind
+declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #2
+
+; Function Attrs: nounwind
+declare void @llvm.eh.endcatch() #2
+
+attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #1 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #2 = { nounwind }
+attributes #3 = { noreturn }
+
+!llvm.module.flags = !{!0}
+!llvm.ident = !{!1}
+
+!0 = !{i32 1, !"PIC Level", i32 2}
+!1 = !{!"clang version 3.7.0 (trunk 235214) (llvm/trunk 235213)"}