Fix PR1833 - eh.exception and eh.selector return two

values, which means doing extra legalization work.
It would be easier to get this kind of thing right if
there was some documentation...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45472 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGen/Generic/2007-12-31-UnusedSelector.ll

@@ -0,0 +1,36 @@
+; RUN: llvm-as < %s | llc -enable-eh
+; PR1833
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
+target triple = "i686-pc-linux-gnu"
+	%struct.__class_type_info_pseudo = type { %struct.__type_info_pseudo }
+	%struct.__type_info_pseudo = type { i8*, i8* }
+@_ZTI2e1 = external constant %struct.__class_type_info_pseudo		; <%struct.__class_type_info_pseudo*> [#uses=1]
+
+define void @_Z7ex_testv() {
+entry:
+	invoke void @__cxa_throw( i8* null, i8* bitcast (%struct.__class_type_info_pseudo* @_ZTI2e1 to i8*), void (i8*)* null ) noreturn 
+			to label %UnifiedUnreachableBlock unwind label %lpad
+
+bb14:		; preds = %lpad
+	unreachable
+
+lpad:		; preds = %entry
+	invoke void @__cxa_end_catch( )
+			to label %bb14 unwind label %lpad17
+
+lpad17:		; preds = %lpad
+	%eh_select20 = tail call i32 (i8*, i8*, ...)* @llvm.eh.selector.i32( i8* null, i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*), i8* null )		; <i32> [#uses=0]
+	unreachable
+
+UnifiedUnreachableBlock:		; preds = %entry
+	unreachable
+}
+
+declare void @__cxa_throw(i8*, i8*, void (i8*)*) noreturn 
+
+declare i32 @llvm.eh.selector.i32(i8*, i8*, ...)
+
+declare void @__cxa_end_catch()
+
+declare i32 @__gxx_personality_v0(...)