testcase for PR1228

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36601 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/Generic/2007-04-30-LandingPadBranchFolding.ll b/test/CodeGen/Generic/2007-04-30-LandingPadBranchFolding.ll
new file mode 100644 (file)
index 0000000..71b4c85
--- /dev/null
+++ b/test/CodeGen/Generic/2007-04-30-LandingPadBranchFolding.ll
@@ -0,0 +1,59 @@
+; RUN: llvm-as < %s | llc 
+; PR1228
+
+       "struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Alloc_hider" = type { i8* }
+       "struct.std::locale" = type { "struct.std::locale::_Impl"* }
+       "struct.std::locale::_Impl" = type { i32, "struct.std::locale::facet"**, i32, "struct.std::locale::facet"**, i8** }
+       "struct.std::locale::facet" = type { i32 (...)**, i32 }
+       "struct.std::string" = type { "struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Alloc_hider" }
+
+define void @_ZNKSt6locale4nameEv("struct.std::string"* %agg.result) {
+entry:
+       %tmp105 = icmp eq i8* null, null                ; <i1> [#uses=1]
+       br i1 %tmp105, label %cond_true, label %cond_true222
+
+cond_true:             ; preds = %entry
+       invoke void @_ZNSs14_M_replace_auxEjjjc( )
+                       to label %cond_next1328 unwind label %cond_true1402
+
+cond_true222:          ; preds = %cond_true222, %entry
+       %tmp207 = call i32 @strcmp( )           ; <i32> [#uses=1]
+       %tmp208 = icmp eq i32 %tmp207, 0                ; <i1> [#uses=2]
+       %bothcond1480 = and i1 %tmp208, false           ; <i1> [#uses=1]
+       br i1 %bothcond1480, label %cond_true222, label %cond_next226.loopexit
+
+cond_next226.loopexit:         ; preds = %cond_true222
+       %phitmp = xor i1 %tmp208, true          ; <i1> [#uses=1]
+       br i1 %phitmp, label %cond_false280, label %cond_true235
+
+cond_true235:          ; preds = %cond_next226.loopexit
+       invoke void @_ZNSs6assignEPKcj( )
+                       to label %cond_next1328 unwind label %cond_true1402
+
+cond_false280:         ; preds = %cond_next226.loopexit
+       invoke void @_ZNSs7reserveEj( )
+                       to label %invcont282 unwind label %cond_true1402
+
+invcont282:            ; preds = %cond_false280
+       invoke void @_ZNSs6appendEPKcj( )
+                       to label %invcont317 unwind label %cond_true1402
+
+invcont317:            ; preds = %invcont282
+       ret void
+
+cond_next1328:         ; preds = %cond_true235, %cond_true
+       ret void
+
+cond_true1402:         ; preds = %invcont282, %cond_false280, %cond_true235, %cond_true
+       ret void
+}
+
+declare void @_ZNSs14_M_replace_auxEjjjc()
+
+declare i32 @strcmp()
+
+declare void @_ZNSs6assignEPKcj()
+
+declare void @_ZNSs7reserveEj()
+
+declare void @_ZNSs6appendEPKcj()