1 ; RUN: llc -O3 < %s 2 ; This test fails with: 3 ; Assertion failed: (!B && "UpdateTerminators requires analyzable predecessors!"), function updateTerminator, MachineBasicBlock.cpp, line 255. 4 5 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" 6 target triple = "x86_64-apple-darwin10.2" 7 8 %"struct.llvm::InlineAsm::ConstraintInfo" = type { i32, i8, i8, i8, i8, %"struct.std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >,std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >" } 9 %"struct.std::_Vector_base<llvm::InlineAsm::ConstraintInfo,std::allocator<llvm::InlineAsm::ConstraintInfo> >" = type { %"struct.std::_Vector_base<llvm::InlineAsm::ConstraintInfo,std::allocator<llvm::InlineAsm::ConstraintInfo> >::_Vector_impl" } 10 %"struct.std::_Vector_base<llvm::InlineAsm::ConstraintInfo,std::allocator<llvm::InlineAsm::ConstraintInfo> >::_Vector_impl" = type { %"struct.llvm::InlineAsm::ConstraintInfo"*, %"struct.llvm::InlineAsm::ConstraintInfo"*, %"struct.llvm::InlineAsm::ConstraintInfo"* } 11 %"struct.std::_Vector_base<std::basic_string<char, std::char_traits<char>, std::allocator<char> >,std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >" = type { %"struct.std::_Vector_base<std::basic_string<char, std::char_traits<char>, std::allocator<char> >,std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >::_Vector_impl" } 12 %"struct.std::_Vector_base<std::basic_string<char, std::char_traits<char>, std::allocator<char> >,std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >::_Vector_impl" = type { %"struct.std::string"*, %"struct.std::string"*, %"struct.std::string"* } 13 %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Alloc_hider" = type { i8* } 14 %"struct.std::string" = type { %"struct.std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Alloc_hider" } 15 %"struct.std::vector<llvm::InlineAsm::ConstraintInfo,std::allocator<llvm::InlineAsm::ConstraintInfo> >" = type { %"struct.std::_Vector_base<llvm::InlineAsm::ConstraintInfo,std::allocator<llvm::InlineAsm::ConstraintInfo> >" } 16 %"struct.std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >,std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >" = type { %"struct.std::_Vector_base<std::basic_string<char, std::char_traits<char>, std::allocator<char> >,std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >" } 17 18 define zeroext i8 @_ZN4llvm9InlineAsm14ConstraintInfo5ParseENS_9StringRefERSt6vectorIS1_SaIS1_EE(%"struct.llvm::InlineAsm::ConstraintInfo"* nocapture %this, i64 %Str.0, i64 %Str.1, %"struct.std::vector<llvm::InlineAsm::ConstraintInfo,std::allocator<llvm::InlineAsm::ConstraintInfo> >"* nocapture %ConstraintsSoFar) nounwind ssp align 2 { 19 entry: 20 br i1 undef, label %bb56, label %bb27.outer 21 22 bb8: ; preds = %bb27.outer108, %bb13 23 switch i8 undef, label %bb27.outer [ 24 i8 35, label %bb56 25 i8 37, label %bb14 26 i8 38, label %bb10 27 i8 42, label %bb56 28 ] 29 30 bb27.outer: ; preds = %bb8, %entry 31 %I.2.ph = phi i8* [ undef, %entry ], [ %I.2.ph109, %bb8 ] ; <i8*> [#uses=2] 32 br label %bb27.outer108 33 34 bb10: ; preds = %bb8 35 %toBool = icmp eq i8 0, 0 ; <i1> [#uses=1] 36 %or.cond = and i1 undef, %toBool ; <i1> [#uses=1] 37 br i1 %or.cond, label %bb13, label %bb56 38 39 bb13: ; preds = %bb10 40 br i1 undef, label %bb27.outer108, label %bb8 41 42 bb14: ; preds = %bb8 43 ret i8 1 44 45 bb27.outer108: ; preds = %bb13, %bb27.outer 46 %I.2.ph109 = getelementptr i8, i8* %I.2.ph, i64 undef ; <i8*> [#uses=1] 47 %scevgep = getelementptr i8, i8* %I.2.ph, i64 undef ; <i8*> [#uses=0] 48 br label %bb8 49 50 bb56: ; preds = %bb10, %bb8, %bb8, %entry 51 ret i8 1 52 } 53
