Testcase for PR2303.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50951 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 33 insertions, 0 deletions

diff --git a/test/Transforms/InstCombine/2008-05-09-SinkOfInvoke.ll b/test/Transforms/InstCombine/2008-05-09-SinkOfInvoke.ll
new file mode 100644
index 0000000000..4dd29a79cd
--- /dev/null
+++ b/test/Transforms/InstCombine/2008-05-09-SinkOfInvoke.ll
@@ -0,0 +1,33 @@
+; RUN: llvm-as < %s | opt -instcombine -disable-output
+; PR2303
+	%"struct.std::ctype<char>" = type { %"struct.std::locale::facet", i32*, i8, i32*, i32*, i16*, i8, [256 x i8], [256 x i8], i8 }
+	%"struct.std::locale::facet" = type { i32 (...)**, i32 }
+
+declare i32* @_ZNSt6locale5facet15_S_get_c_localeEv()
+
+declare i32** @__ctype_toupper_loc() readnone 
+
+declare i32** @__ctype_tolower_loc() readnone 
+
+define void @_ZNSt5ctypeIcEC2EPiPKtbm(%"struct.std::ctype<char>"* %this, i32* %unnamed_arg, i16* %__table, i8 zeroext  %__del, i64 %__refs) {
+entry:
+	%tmp8 = invoke i32* @_ZNSt6locale5facet15_S_get_c_localeEv( )
+			to label %invcont unwind label %lpad		; <i32*> [#uses=0]
+
+invcont:		; preds = %entry
+	%tmp32 = invoke i32** @__ctype_toupper_loc( ) readnone 
+			to label %invcont31 unwind label %lpad		; <i32**> [#uses=0]
+
+invcont31:		; preds = %invcont
+	%tmp38 = invoke i32** @__ctype_tolower_loc( ) readnone 
+			to label %invcont37 unwind label %lpad		; <i32**> [#uses=1]
+
+invcont37:		; preds = %invcont31
+	%tmp39 = load i32** %tmp38, align 8		; <i32*> [#uses=1]
+	%tmp41 = getelementptr %"struct.std::ctype<char>"* %this, i32 0, i32 4		; <i32**> [#uses=1]
+	store i32* %tmp39, i32** %tmp41, align 8
+	ret void
+
+lpad:		; preds = %invcont31, %invcont, %entry
+	unreachable
+}