RPCSX/llvm
1
0
Fork 0
mirror of https://github.com/RPCSX/llvm.git synced 2024-12-12 14:17:59 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
bb167336b3
llvm/test/CodeGen/PowerPC/pr15031.ll

359 lines
32 KiB
LLVM
Raw Normal View History

This patch addresses bug 15031. The common code in the post-RA scheduler to break anti-dependencies on the critical path contained a flaw. In the reported case, an anti-dependency between the overlapping registers %X4 and %R4 exists: %X29<def> = OR8 %X4, %X4 %R4<def>, %X3<def,dead,tied3> = LBZU 1, %X3<kill,tied1> The unpatched code breaks the dependency by replacing %R4 and its uses with %R3, the first register on the available list. However, %R3 and %X3 overlap, so this creates two overlapping definitions on the same instruction. The fix is straightforward, preventing selection of a register that overlaps any other defined register on the same instruction. The test case is reduced from the bug report, and verifies that we no longer produce "lbzu 3, 1(3)" when breaking this anti-dependency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173706 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28 18:36:58 +00:00
; RUN: llc -mcpu=pwr7 -O3 < %s | FileCheck %s
; Test case derived from bug report 15031. The code in the post-RA
; scheduler to break critical anti-dependencies was failing to check
; whether an instruction had more than one definition, and ensuring
; that any additional definitions interfered with the choice of a new
; register. As a result, this test originally caused this to be
; generated:
;
; lbzu 3, 1(3)
;
; which is illegal, since it requires register 3 to both receive the
; loaded value and receive the updated address. With the fix to bug
; 15031, a different register is chosen to receive the loaded value.
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-f128:128:128-v128:128:128-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
%"class.llvm::MachineMemOperand" = type { %"struct.llvm::MachinePointerInfo", i64, i32, %"class.llvm::MDNode"*, %"class.llvm::MDNode"* }
%"struct.llvm::MachinePointerInfo" = type { %"class.llvm::Value"*, i64 }
%"class.llvm::Value" = type { i32 (...)**, i8, i8, i16, %"class.llvm::Type"*, %"class.llvm::Use"*, %"class.llvm::StringMapEntry"* }
%"class.llvm::Type" = type { %"class.llvm::LLVMContext"*, i32, i32, %"class.llvm::Type"** }
%"class.llvm::LLVMContext" = type { %"class.llvm::LLVMContextImpl"* }
%"class.llvm::LLVMContextImpl" = type opaque
%"class.llvm::Use" = type { %"class.llvm::Value"*, %"class.llvm::Use"*, %"class.llvm::PointerIntPair" }
%"class.llvm::PointerIntPair" = type { i64 }
%"class.llvm::StringMapEntry" = type opaque
%"class.llvm::MDNode" = type { %"class.llvm::Value", %"class.llvm::FoldingSetImpl::Node", i32, i32 }
%"class.llvm::FoldingSetImpl::Node" = type { i8* }
%"class.llvm::MachineInstr" = type { %"class.llvm::ilist_node", %"class.llvm::MCInstrDesc"*, %"class.llvm::MachineBasicBlock"*, %"class.llvm::MachineOperand"*, i32, %"class.llvm::ArrayRecycler<llvm::MachineOperand, 8>::Capacity", i8, i8, i8, %"class.llvm::MachineMemOperand"**, %"class.llvm::DebugLoc" }
%"class.llvm::ilist_node" = type { %"class.llvm::ilist_half_node", %"class.llvm::MachineInstr"* }
%"class.llvm::ilist_half_node" = type { %"class.llvm::MachineInstr"* }
%"class.llvm::MCInstrDesc" = type { i16, i16, i16, i16, i16, i32, i64, i16*, i16*, %"class.llvm::MCOperandInfo"* }
%"class.llvm::MCOperandInfo" = type { i16, i8, i8, i32 }
%"class.llvm::MachineBasicBlock" = type { %"class.llvm::ilist_node.0", %"struct.llvm::ilist", %"class.llvm::BasicBlock"*, i32, %"class.llvm::MachineFunction"*, %"class.std::vector.163", %"class.std::vector.163", %"class.std::vector.123", %"class.std::vector.123", i32, i8, i8 }
%"class.llvm::ilist_node.0" = type { %"class.llvm::ilist_half_node.1", %"class.llvm::MachineBasicBlock"* }
%"class.llvm::ilist_half_node.1" = type { %"class.llvm::MachineBasicBlock"* }
%"struct.llvm::ilist" = type { %"class.llvm::iplist" }
%"class.llvm::iplist" = type { %"struct.llvm::ilist_traits", %"class.llvm::MachineInstr"* }
%"struct.llvm::ilist_traits" = type { %"class.llvm::ilist_half_node", %"class.llvm::MachineBasicBlock"* }
%"class.llvm::BasicBlock" = type { %"class.llvm::Value", %"class.llvm::ilist_node.2", %"class.llvm::iplist.4", %"class.llvm::Function"* }
%"class.llvm::ilist_node.2" = type { %"class.llvm::ilist_half_node.3", %"class.llvm::BasicBlock"* }
%"class.llvm::ilist_half_node.3" = type { %"class.llvm::BasicBlock"* }
%"class.llvm::iplist.4" = type { %"struct.llvm::ilist_traits.5", %"class.llvm::Instruction"* }
%"struct.llvm::ilist_traits.5" = type { %"class.llvm::ilist_half_node.10" }
%"class.llvm::ilist_half_node.10" = type { %"class.llvm::Instruction"* }
%"class.llvm::Instruction" = type { %"class.llvm::User", %"class.llvm::ilist_node.193", %"class.llvm::BasicBlock"*, %"class.llvm::DebugLoc" }
%"class.llvm::User" = type { %"class.llvm::Value", %"class.llvm::Use"*, i32 }
%"class.llvm::ilist_node.193" = type { %"class.llvm::ilist_half_node.10", %"class.llvm::Instruction"* }
%"class.llvm::DebugLoc" = type { i32, i32 }
%"class.llvm::Function" = type { %"class.llvm::GlobalValue", %"class.llvm::ilist_node.27", %"class.llvm::iplist.47", %"class.llvm::iplist.54", %"class.llvm::ValueSymbolTable"*, %"class.llvm::AttributeSet" }
%"class.llvm::GlobalValue" = type { [52 x i8], [4 x i8], %"class.llvm::Module"*, %"class.std::basic_string" }
%"class.llvm::Module" = type { %"class.llvm::LLVMContext"*, %"class.llvm::iplist.11", %"class.llvm::iplist.20", %"class.llvm::iplist.29", %"struct.llvm::ilist.38", %"class.std::basic_string", %"class.llvm::ValueSymbolTable"*, %"class.llvm::OwningPtr", %"class.std::basic_string", %"class.std::basic_string", %"class.std::basic_string", i8* }
%"class.llvm::iplist.11" = type { %"struct.llvm::ilist_traits.12", %"class.llvm::GlobalVariable"* }
%"struct.llvm::ilist_traits.12" = type { %"class.llvm::ilist_node.18" }
%"class.llvm::ilist_node.18" = type { %"class.llvm::ilist_half_node.19", %"class.llvm::GlobalVariable"* }
%"class.llvm::ilist_half_node.19" = type { %"class.llvm::GlobalVariable"* }
%"class.llvm::GlobalVariable" = type { %"class.llvm::GlobalValue", %"class.llvm::ilist_node.18", i8 }
%"class.llvm::iplist.20" = type { %"struct.llvm::ilist_traits.21", %"class.llvm::Function"* }
%"struct.llvm::ilist_traits.21" = type { %"class.llvm::ilist_node.27" }
%"class.llvm::ilist_node.27" = type { %"class.llvm::ilist_half_node.28", %"class.llvm::Function"* }
%"class.llvm::ilist_half_node.28" = type { %"class.llvm::Function"* }
%"class.llvm::iplist.29" = type { %"struct.llvm::ilist_traits.30", %"class.llvm::GlobalAlias"* }
%"struct.llvm::ilist_traits.30" = type { %"class.llvm::ilist_node.36" }
%"class.llvm::ilist_node.36" = type { %"class.llvm::ilist_half_node.37", %"class.llvm::GlobalAlias"* }
%"class.llvm::ilist_half_node.37" = type { %"class.llvm::GlobalAlias"* }
%"class.llvm::GlobalAlias" = type { %"class.llvm::GlobalValue", %"class.llvm::ilist_node.36" }
%"struct.llvm::ilist.38" = type { %"class.llvm::iplist.39" }
%"class.llvm::iplist.39" = type { %"struct.llvm::ilist_traits.40", %"class.llvm::NamedMDNode"* }
%"struct.llvm::ilist_traits.40" = type { %"class.llvm::ilist_node.45" }
%"class.llvm::ilist_node.45" = type { %"class.llvm::ilist_half_node.46", %"class.llvm::NamedMDNode"* }
%"class.llvm::ilist_half_node.46" = type { %"class.llvm::NamedMDNode"* }
%"class.llvm::NamedMDNode" = type { %"class.llvm::ilist_node.45", %"class.std::basic_string", %"class.llvm::Module"*, i8* }
%"class.std::basic_string" = type { %"struct.std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_Alloc_hider" }
%"struct.std::basic_string<char, std::char_traits<char>, std::allocator<char> >::_Alloc_hider" = type { i8* }
%"class.llvm::ValueSymbolTable" = type opaque
%"class.llvm::OwningPtr" = type { %"class.llvm::GVMaterializer"* }
%"class.llvm::GVMaterializer" = type opaque
%"class.llvm::iplist.47" = type { %"struct.llvm::ilist_traits.48", %"class.llvm::BasicBlock"* }
%"struct.llvm::ilist_traits.48" = type { %"class.llvm::ilist_half_node.3" }
%"class.llvm::iplist.54" = type { %"struct.llvm::ilist_traits.55", %"class.llvm::Argument"* }
%"struct.llvm::ilist_traits.55" = type { %"class.llvm::ilist_half_node.61" }
%"class.llvm::ilist_half_node.61" = type { %"class.llvm::Argument"* }
%"class.llvm::Argument" = type { %"class.llvm::Value", %"class.llvm::ilist_node.192", %"class.llvm::Function"* }
%"class.llvm::ilist_node.192" = type { %"class.llvm::ilist_half_node.61", %"class.llvm::Argument"* }
%"class.llvm::AttributeSet" = type { %"class.llvm::AttributeSetImpl"* }
%"class.llvm::AttributeSetImpl" = type opaque
%"class.llvm::MachineFunction" = type { %"class.llvm::Function"*, %"class.llvm::TargetMachine"*, %"class.llvm::MCContext"*, %"class.llvm::MachineModuleInfo"*, %"class.llvm::GCModuleInfo"*, %"class.llvm::MachineRegisterInfo"*, %"struct.llvm::MachineFunctionInfo"*, %"class.llvm::MachineFrameInfo"*, %"class.llvm::MachineConstantPool"*, %"class.llvm::MachineJumpTableInfo"*, %"class.std::vector.163", %"class.llvm::BumpPtrAllocator", %"class.llvm::Recycler", %"class.llvm::ArrayRecycler", %"class.llvm::Recycler.180", %"struct.llvm::ilist.181", i32, i32, i8 }
%"class.llvm::TargetMachine" = type { i32 (...)**, %"class.llvm::Target"*, %"class.std::basic_string", %"class.std::basic_string", %"class.std::basic_string", %"class.llvm::MCCodeGenInfo"*, %"class.llvm::MCAsmInfo"*, i8, %"class.llvm::TargetOptions" }
%"class.llvm::Target" = type opaque
%"class.llvm::MCCodeGenInfo" = type opaque
%"class.llvm::MCAsmInfo" = type opaque
%"class.llvm::TargetOptions" = type { [2 x i8], i32, i8, i32, i8, %"class.std::basic_string", i32, i32 }
%"class.llvm::MCContext" = type { %"class.llvm::SourceMgr"*, %"class.llvm::MCAsmInfo"*, %"class.llvm::MCRegisterInfo"*, %"class.llvm::MCObjectFileInfo"*, %"class.llvm::BumpPtrAllocator", %"class.llvm::StringMap", %"class.llvm::StringMap.62", i32, %"class.llvm::DenseMap.63", i8*, %"class.llvm::raw_ostream"*, i8, %"class.std::basic_string", %"class.std::basic_string", %"class.std::vector", %"class.std::vector.70", %"class.llvm::MCDwarfLoc", i8, i8, i32, %"class.llvm::MCSection"*, %"class.llvm::MCSymbol"*, %"class.llvm::MCSymbol"*, %"class.std::vector.75", %"class.llvm::StringRef", %"class.llvm::StringRef", i8, %"class.llvm::DenseMap.80", %"class.std::vector.84", i8*, i8*, i8*, i8 }
%"class.llvm::SourceMgr" = type opaque
%"class.llvm::MCRegisterInfo" = type { %"struct.llvm::MCRegisterDesc"*, i32, i32, i32, %"class.llvm::MCRegisterClass"*, i32, i32, [2 x i16]*, i16*, i8*, i16*, i32, i16*, i32, i32, i32, i32, %"struct.llvm::MCRegisterInfo::DwarfLLVMRegPair"*, %"struct.llvm::MCRegisterInfo::DwarfLLVMRegPair"*, %"struct.llvm::MCRegisterInfo::DwarfLLVMRegPair"*, %"struct.llvm::MCRegisterInfo::DwarfLLVMRegPair"*, %"class.llvm::DenseMap" }
%"struct.llvm::MCRegisterDesc" = type { i32, i32, i32, i32, i32, i32 }
%"class.llvm::MCRegisterClass" = type { i8*, i16*, i8*, i16, i16, i16, i16, i16, i8, i8 }
%"struct.llvm::MCRegisterInfo::DwarfLLVMRegPair" = type { i32, i32 }
%"class.llvm::DenseMap" = type { %"struct.std::pair"*, i32, i32, i32 }
%"struct.std::pair" = type { i32, i32 }
%"class.llvm::MCObjectFileInfo" = type opaque
%"class.llvm::BumpPtrAllocator" = type { i64, i64, %"class.llvm::SlabAllocator"*, %"class.llvm::MemSlab"*, i8*, i8*, i64 }
%"class.llvm::SlabAllocator" = type { i32 (...)** }
%"class.llvm::MemSlab" = type { i64, %"class.llvm::MemSlab"* }
%"class.llvm::StringMap" = type { %"class.llvm::StringMapImpl", %"class.llvm::BumpPtrAllocator"* }
%"class.llvm::StringMapImpl" = type { %"class.llvm::StringMapEntryBase"**, i32, i32, i32, i32 }
%"class.llvm::StringMapEntryBase" = type { i32 }
%"class.llvm::StringMap.62" = type { %"class.llvm::StringMapImpl", %"class.llvm::BumpPtrAllocator"* }
%"class.llvm::DenseMap.63" = type { %"struct.std::pair.66"*, i32, i32, i32 }
%"struct.std::pair.66" = type opaque
%"class.llvm::raw_ostream" = type { i32 (...)**, i8*, i8*, i8*, i32 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<llvm::MCDwarfFile *, std::allocator<llvm::MCDwarfFile *> >::_Vector_impl" }
%"struct.std::_Vector_base<llvm::MCDwarfFile *, std::allocator<llvm::MCDwarfFile *> >::_Vector_impl" = type { %"class.llvm::MCDwarfFile"**, %"class.llvm::MCDwarfFile"**, %"class.llvm::MCDwarfFile"** }
%"class.llvm::MCDwarfFile" = type { %"class.llvm::StringRef", i32 }
%"class.llvm::StringRef" = type { i8*, i64 }
%"class.std::vector.70" = type { %"struct.std::_Vector_base.71" }
%"struct.std::_Vector_base.71" = type { %"struct.std::_Vector_base<llvm::StringRef, std::allocator<llvm::StringRef> >::_Vector_impl" }
%"struct.std::_Vector_base<llvm::StringRef, std::allocator<llvm::StringRef> >::_Vector_impl" = type { %"class.llvm::StringRef"*, %"class.llvm::StringRef"*, %"class.llvm::StringRef"* }
%"class.llvm::MCDwarfLoc" = type { i32, i32, i32, i32, i32, i32 }
%"class.llvm::MCSection" = type opaque
%"class.llvm::MCSymbol" = type { %"class.llvm::StringRef", %"class.llvm::MCSection"*, %"class.llvm::MCExpr"*, i8 }
%"class.llvm::MCExpr" = type opaque
%"class.std::vector.75" = type { %"struct.std::_Vector_base.76" }
%"struct.std::_Vector_base.76" = type { %"struct.std::_Vector_base<const llvm::MCGenDwarfLabelEntry *, std::allocator<const llvm::MCGenDwarfLabelEntry *> >::_Vector_impl" }
%"struct.std::_Vector_base<const llvm::MCGenDwarfLabelEntry *, std::allocator<const llvm::MCGenDwarfLabelEntry *> >::_Vector_impl" = type { %"class.llvm::MCGenDwarfLabelEntry"**, %"class.llvm::MCGenDwarfLabelEntry"**, %"class.llvm::MCGenDwarfLabelEntry"** }
%"class.llvm::MCGenDwarfLabelEntry" = type { %"class.llvm::StringRef", i32, i32, %"class.llvm::MCSymbol"* }
%"class.llvm::DenseMap.80" = type { %"struct.std::pair.83"*, i32, i32, i32 }
%"struct.std::pair.83" = type { %"class.llvm::MCSection"*, %"class.llvm::MCLineSection"* }
%"class.llvm::MCLineSection" = type { %"class.std::vector.215" }
%"class.std::vector.215" = type { %"struct.std::_Vector_base.216" }
%"struct.std::_Vector_base.216" = type { %"struct.std::_Vector_base<llvm::MCLineEntry, std::allocator<llvm::MCLineEntry> >::_Vector_impl" }
%"struct.std::_Vector_base<llvm::MCLineEntry, std::allocator<llvm::MCLineEntry> >::_Vector_impl" = type { %"class.llvm::MCLineEntry"*, %"class.llvm::MCLineEntry"*, %"class.llvm::MCLineEntry"* }
%"class.llvm::MCLineEntry" = type { %"class.llvm::MCDwarfLoc", %"class.llvm::MCSymbol"* }
%"class.std::vector.84" = type { %"struct.std::_Vector_base.85" }
%"struct.std::_Vector_base.85" = type { %"struct.std::_Vector_base<const llvm::MCSection *, std::allocator<const llvm::MCSection *> >::_Vector_impl" }
%"struct.std::_Vector_base<const llvm::MCSection *, std::allocator<const llvm::MCSection *> >::_Vector_impl" = type { %"class.llvm::MCSection"**, %"class.llvm::MCSection"**, %"class.llvm::MCSection"** }
%"class.llvm::MachineModuleInfo" = type { %"class.llvm::ImmutablePass", %"class.llvm::MCContext", %"class.llvm::Module"*, %"class.llvm::MachineModuleInfoImpl"*, %"class.std::vector.95", i32, %"class.std::vector.100", %"class.llvm::DenseMap.110", %"class.llvm::DenseMap.114", i32, %"class.std::vector.118", %"class.std::vector.123", %"class.std::vector.123", %"class.std::vector.128", %"class.llvm::SmallPtrSet", %"class.llvm::MMIAddrLabelMap"*, i8, i8, i8, i8, %"class.llvm::SmallVector.133" }
%"class.llvm::ImmutablePass" = type { %"class.llvm::ModulePass" }
%"class.llvm::ModulePass" = type { %"class.llvm::Pass" }
%"class.llvm::Pass" = type { i32 (...)**, %"class.llvm::AnalysisResolver"*, i8*, i32 }
%"class.llvm::AnalysisResolver" = type { %"class.std::vector.89", %"class.llvm::PMDataManager"* }
%"class.std::vector.89" = type { %"struct.std::_Vector_base.90" }
%"struct.std::_Vector_base.90" = type { %"struct.std::_Vector_base<std::pair<const void *, llvm::Pass *>, std::allocator<std::pair<const void *, llvm::Pass *> > >::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<const void *, llvm::Pass *>, std::allocator<std::pair<const void *, llvm::Pass *> > >::_Vector_impl" = type { %"struct.std::pair.94"*, %"struct.std::pair.94"*, %"struct.std::pair.94"* }
%"struct.std::pair.94" = type { i8*, %"class.llvm::Pass"* }
%"class.llvm::PMDataManager" = type opaque
%"class.llvm::MachineModuleInfoImpl" = type { i32 (...)** }
%"class.std::vector.95" = type { %"struct.std::_Vector_base.96" }
%"struct.std::_Vector_base.96" = type { %"struct.std::_Vector_base<llvm::MachineMove, std::allocator<llvm::MachineMove> >::_Vector_impl" }
%"struct.std::_Vector_base<llvm::MachineMove, std::allocator<llvm::MachineMove> >::_Vector_impl" = type { %"class.llvm::MachineMove"*, %"class.llvm::MachineMove"*, %"class.llvm::MachineMove"* }
%"class.llvm::MachineMove" = type { %"class.llvm::MCSymbol"*, %"class.llvm::MachineLocation", %"class.llvm::MachineLocation" }
%"class.llvm::MachineLocation" = type { i8, i32, i32 }
%"class.std::vector.100" = type { %"struct.std::_Vector_base.101" }
%"struct.std::_Vector_base.101" = type { %"struct.std::_Vector_base<llvm::LandingPadInfo, std::allocator<llvm::LandingPadInfo> >::_Vector_impl" }
%"struct.std::_Vector_base<llvm::LandingPadInfo, std::allocator<llvm::LandingPadInfo> >::_Vector_impl" = type { %"struct.llvm::LandingPadInfo"*, %"struct.llvm::LandingPadInfo"*, %"struct.llvm::LandingPadInfo"* }
%"struct.llvm::LandingPadInfo" = type { %"class.llvm::MachineBasicBlock"*, %"class.llvm::SmallVector", %"class.llvm::SmallVector", %"class.llvm::MCSymbol"*, %"class.llvm::Function"*, %"class.std::vector.105" }
%"class.llvm::SmallVector" = type { %"class.llvm::SmallVectorImpl", %"struct.llvm::SmallVectorStorage" }
%"class.llvm::SmallVectorImpl" = type { %"class.llvm::SmallVectorTemplateBase" }
%"class.llvm::SmallVectorTemplateBase" = type { %"class.llvm::SmallVectorTemplateCommon" }
%"class.llvm::SmallVectorTemplateCommon" = type { %"class.llvm::SmallVectorBase", %"struct.llvm::AlignedCharArrayUnion" }
%"class.llvm::SmallVectorBase" = type { i8*, i8*, i8* }
%"struct.llvm::AlignedCharArrayUnion" = type { %"struct.llvm::AlignedCharArray" }
%"struct.llvm::AlignedCharArray" = type { [8 x i8] }
%"struct.llvm::SmallVectorStorage" = type { i8 }
%"class.std::vector.105" = type { %"struct.std::_Vector_base.106" }
%"struct.std::_Vector_base.106" = type { %"struct.std::_Vector_base<int, std::allocator<int> >::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int> >::_Vector_impl" = type { i32*, i32*, i32* }
%"class.llvm::DenseMap.110" = type { %"struct.std::pair.113"*, i32, i32, i32 }
%"struct.std::pair.113" = type { %"class.llvm::MCSymbol"*, %"class.llvm::SmallVector.206" }
%"class.llvm::SmallVector.206" = type { [28 x i8], %"struct.llvm::SmallVectorStorage.207" }
%"struct.llvm::SmallVectorStorage.207" = type { [3 x %"struct.llvm::AlignedCharArrayUnion.198"] }
%"struct.llvm::AlignedCharArrayUnion.198" = type { %"struct.llvm::AlignedCharArray.199" }
%"struct.llvm::AlignedCharArray.199" = type { [4 x i8] }
%"class.llvm::DenseMap.114" = type { %"struct.std::pair.117"*, i32, i32, i32 }
%"struct.std::pair.117" = type { %"class.llvm::MCSymbol"*, i32 }
%"class.std::vector.118" = type { %"struct.std::_Vector_base.119" }
%"struct.std::_Vector_base.119" = type { %"struct.std::_Vector_base<const llvm::GlobalVariable *, std::allocator<const llvm::GlobalVariable *> >::_Vector_impl" }
%"struct.std::_Vector_base<const llvm::GlobalVariable *, std::allocator<const llvm::GlobalVariable *> >::_Vector_impl" = type { %"class.llvm::GlobalVariable"**, %"class.llvm::GlobalVariable"**, %"class.llvm::GlobalVariable"** }
%"class.std::vector.123" = type { %"struct.std::_Vector_base.124" }
%"struct.std::_Vector_base.124" = type { %"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int> >::_Vector_impl" }
%"struct.std::_Vector_base<unsigned int, std::allocator<unsigned int> >::_Vector_impl" = type { i32*, i32*, i32* }
%"class.std::vector.128" = type { %"struct.std::_Vector_base.129" }
%"struct.std::_Vector_base.129" = type { %"struct.std::_Vector_base<const llvm::Function *, std::allocator<const llvm::Function *> >::_Vector_impl" }
%"struct.std::_Vector_base<const llvm::Function *, std::allocator<const llvm::Function *> >::_Vector_impl" = type { %"class.llvm::Function"**, %"class.llvm::Function"**, %"class.llvm::Function"** }
%"class.llvm::SmallPtrSet" = type { %"class.llvm::SmallPtrSetImpl", [33 x i8*] }
%"class.llvm::SmallPtrSetImpl" = type { i8**, i8**, i32, i32, i32 }
%"class.llvm::MMIAddrLabelMap" = type opaque
%"class.llvm::SmallVector.133" = type { %"class.llvm::SmallVectorImpl.134", %"struct.llvm::SmallVectorStorage.139" }
%"class.llvm::SmallVectorImpl.134" = type { %"class.llvm::SmallVectorTemplateBase.135" }
%"class.llvm::SmallVectorTemplateBase.135" = type { %"class.llvm::SmallVectorTemplateCommon.136" }
%"class.llvm::SmallVectorTemplateCommon.136" = type { %"class.llvm::SmallVectorBase", %"struct.llvm::AlignedCharArrayUnion.137" }
%"struct.llvm::AlignedCharArrayUnion.137" = type { %"struct.llvm::AlignedCharArray.138" }
%"struct.llvm::AlignedCharArray.138" = type { [40 x i8] }
%"struct.llvm::SmallVectorStorage.139" = type { [3 x %"struct.llvm::AlignedCharArrayUnion.137"] }
%"class.llvm::GCModuleInfo" = type opaque
%"class.llvm::MachineRegisterInfo" = type { %"class.llvm::TargetRegisterInfo"*, i8, i8, %"class.llvm::IndexedMap", %"class.llvm::IndexedMap.146", %"class.llvm::MachineOperand"**, %"class.llvm::BitVector", %"class.llvm::BitVector", %"class.llvm::BitVector", %"class.std::vector.147", %"class.std::vector.123" }
%"class.llvm::TargetRegisterInfo" = type { i32 (...)**, %"class.llvm::MCRegisterInfo", %"struct.llvm::TargetRegisterInfoDesc"*, i8**, i32*, %"class.llvm::TargetRegisterClass"**, %"class.llvm::TargetRegisterClass"** }
%"struct.llvm::TargetRegisterInfoDesc" = type { i32, i8 }
%"class.llvm::TargetRegisterClass" = type { %"class.llvm::MCRegisterClass"*, i32*, i32*, i16*, %"class.llvm::TargetRegisterClass"**, void (%"class.llvm::ArrayRef"*, %"class.llvm::MachineFunction"*)* }
%"class.llvm::ArrayRef" = type { i16*, i64 }
%"class.llvm::IndexedMap" = type { %"class.std::vector.140", %"struct.std::pair.145", %"struct.llvm::VirtReg2IndexFunctor" }
%"class.std::vector.140" = type { %"struct.std::_Vector_base.141" }
%"struct.std::_Vector_base.141" = type { %"struct.std::_Vector_base<std::pair<const llvm::TargetRegisterClass *, llvm::MachineOperand *>, std::allocator<std::pair<const llvm::TargetRegisterClass *, llvm::MachineOperand *> > >::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<const llvm::TargetRegisterClass *, llvm::MachineOperand *>, std::allocator<std::pair<const llvm::TargetRegisterClass *, llvm::MachineOperand *> > >::_Vector_impl" = type { %"struct.std::pair.145"*, %"struct.std::pair.145"*, %"struct.std::pair.145"* }
%"struct.std::pair.145" = type { %"class.llvm::TargetRegisterClass"*, %"class.llvm::MachineOperand"* }
%"class.llvm::MachineOperand" = type { i8, [3 x i8], %union.anon, %"class.llvm::MachineInstr"*, %union.anon.188 }
%union.anon = type { i32 }
%union.anon.188 = type { %struct.anon }
%struct.anon = type { %"class.llvm::MachineOperand"*, %"class.llvm::MachineOperand"* }
%"struct.llvm::VirtReg2IndexFunctor" = type { i8 }
%"class.llvm::IndexedMap.146" = type { %"class.std::vector.147", %"struct.std::pair.152", %"struct.llvm::VirtReg2IndexFunctor" }
%"class.std::vector.147" = type { %"struct.std::_Vector_base.148" }
%"struct.std::_Vector_base.148" = type { %"struct.std::_Vector_base<std::pair<unsigned int, unsigned int>, std::allocator<std::pair<unsigned int, unsigned int> > >::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<unsigned int, unsigned int>, std::allocator<std::pair<unsigned int, unsigned int> > >::_Vector_impl" = type { %"struct.std::pair.152"*, %"struct.std::pair.152"*, %"struct.std::pair.152"* }
%"struct.std::pair.152" = type { i32, i32 }
%"class.llvm::BitVector" = type { i64*, i32, i32 }
%"struct.llvm::MachineFunctionInfo" = type { i32 (...)** }
%"class.llvm::MachineFrameInfo" = type opaque
%"class.llvm::MachineConstantPool" = type { %"class.llvm::DataLayout"*, i32, %"class.std::vector.153", %"class.llvm::DenseSet" }
%"class.llvm::DataLayout" = type opaque
%"class.std::vector.153" = type { %"struct.std::_Vector_base.154" }
%"struct.std::_Vector_base.154" = type { %"struct.std::_Vector_base<llvm::MachineConstantPoolEntry, std::allocator<llvm::MachineConstantPoolEntry> >::_Vector_impl" }
%"struct.std::_Vector_base<llvm::MachineConstantPoolEntry, std::allocator<llvm::MachineConstantPoolEntry> >::_Vector_impl" = type { %"class.llvm::MachineConstantPoolEntry"*, %"class.llvm::MachineConstantPoolEntry"*, %"class.llvm::MachineConstantPoolEntry"* }
%"class.llvm::MachineConstantPoolEntry" = type { %union.anon.158, i32 }
%union.anon.158 = type { %"class.llvm::Constant"* }
%"class.llvm::Constant" = type { %"class.llvm::User" }
%"class.llvm::DenseSet" = type { %"class.llvm::DenseMap.159" }
%"class.llvm::DenseMap.159" = type { %"struct.std::pair.162"*, i32, i32, i32 }
%"struct.std::pair.162" = type { %"class.llvm::MachineConstantPoolValue"*, i8 }
%"class.llvm::MachineConstantPoolValue" = type { i32 (...)**, %"class.llvm::Type"* }
%"class.llvm::MachineJumpTableInfo" = type opaque
%"class.std::vector.163" = type { %"struct.std::_Vector_base.164" }
%"struct.std::_Vector_base.164" = type { %"struct.std::_Vector_base<llvm::MachineBasicBlock *, std::allocator<llvm::MachineBasicBlock *> >::_Vector_impl" }
%"struct.std::_Vector_base<llvm::MachineBasicBlock *, std::allocator<llvm::MachineBasicBlock *> >::_Vector_impl" = type { %"class.llvm::MachineBasicBlock"**, %"class.llvm::MachineBasicBlock"**, %"class.llvm::MachineBasicBlock"** }
%"class.llvm::Recycler" = type { %"class.llvm::iplist.168" }
%"class.llvm::iplist.168" = type { %"struct.llvm::ilist_traits.169", %"struct.llvm::RecyclerStruct"* }
%"struct.llvm::ilist_traits.169" = type { %"struct.llvm::RecyclerStruct" }
%"struct.llvm::RecyclerStruct" = type { %"struct.llvm::RecyclerStruct"*, %"struct.llvm::RecyclerStruct"* }
%"class.llvm::ArrayRecycler" = type { %"class.llvm::SmallVector.174" }
%"class.llvm::SmallVector.174" = type { %"class.llvm::SmallVectorImpl.175", %"struct.llvm::SmallVectorStorage.179" }
%"class.llvm::SmallVectorImpl.175" = type { %"class.llvm::SmallVectorTemplateBase.176" }
%"class.llvm::SmallVectorTemplateBase.176" = type { %"class.llvm::SmallVectorTemplateCommon.177" }
%"class.llvm::SmallVectorTemplateCommon.177" = type { %"class.llvm::SmallVectorBase", %"struct.llvm::AlignedCharArrayUnion.178" }
%"struct.llvm::AlignedCharArrayUnion.178" = type { %"struct.llvm::AlignedCharArray" }
%"struct.llvm::SmallVectorStorage.179" = type { [7 x %"struct.llvm::AlignedCharArrayUnion.178"] }
%"class.llvm::Recycler.180" = type { %"class.llvm::iplist.168" }
%"struct.llvm::ilist.181" = type { %"class.llvm::iplist.182" }
%"class.llvm::iplist.182" = type { %"struct.llvm::ilist_traits.183", %"class.llvm::MachineBasicBlock"* }
%"struct.llvm::ilist_traits.183" = type { %"class.llvm::ilist_half_node.1" }
%"class.llvm::ArrayRecycler<llvm::MachineOperand, 8>::Capacity" = type { i8 }
%"class.llvm::ConstantInt" = type { %"class.llvm::Constant", %"class.llvm::APInt" }
%"class.llvm::APInt" = type { i32, %union.anon.189 }
%union.anon.189 = type { i64 }
%"class.llvm::ConstantFP" = type { %"class.llvm::Constant", %"class.llvm::APFloat" }
%"class.llvm::APFloat" = type { %"struct.llvm::fltSemantics"*, %"union.llvm::APFloat::Significand", i16, i8 }
%"struct.llvm::fltSemantics" = type opaque
%"union.llvm::APFloat::Significand" = type { i64 }
%"class.llvm::BlockAddress" = type { %"class.llvm::Constant" }
%"class.llvm::hash_code" = type { i64 }
%"struct.llvm::hashing::detail::hash_combine_recursive_helper" = type { [64 x i8], %"struct.llvm::hashing::detail::hash_state", i64 }
%"struct.llvm::hashing::detail::hash_state" = type { i64, i64, i64, i64, i64, i64, i64, i64 }
%"class.llvm::PrintReg" = type { %"class.llvm::TargetRegisterInfo"*, i32, i32 }
%"class.llvm::PseudoSourceValue" = type { %"class.llvm::Value" }
%"class.llvm::FoldingSetNodeID" = type { %"class.llvm::SmallVector.194" }
%"class.llvm::SmallVector.194" = type { [28 x i8], %"struct.llvm::SmallVectorStorage.200" }
%"struct.llvm::SmallVectorStorage.200" = type { [31 x %"struct.llvm::AlignedCharArrayUnion.198"] }
%"struct.llvm::ArrayRecycler<llvm::MachineOperand, 8>::FreeList" = type { %"struct.llvm::ArrayRecycler<llvm::MachineOperand, 8>::FreeList"* }
%"class.llvm::ilist_iterator.202" = type { %"class.llvm::MachineInstr"* }
%"class.llvm::TargetInstrInfo" = type { i32 (...)**, [28 x i8], i32, i32 }
%"struct.std::pair.203" = type { i8, i8 }
%"class.llvm::SmallVectorImpl.195" = type { %"class.llvm::SmallVectorTemplateBase.196" }
%"class.llvm::SmallVectorTemplateBase.196" = type { %"class.llvm::SmallVectorTemplateCommon.197" }
%"class.llvm::SmallVectorTemplateCommon.197" = type { %"class.llvm::SmallVectorBase", %"struct.llvm::AlignedCharArrayUnion.198" }
%"class.llvm::AliasAnalysis" = type { i32 (...)**, %"class.llvm::DataLayout"*, %"class.llvm::TargetLibraryInfo"*, %"class.llvm::AliasAnalysis"* }
%"class.llvm::TargetLibraryInfo" = type opaque
%"struct.llvm::AliasAnalysis::Location" = type { %"class.llvm::Value"*, i64, %"class.llvm::MDNode"* }
%"class.llvm::DIVariable" = type { %"class.llvm::DIDescriptor" }
%"class.llvm::DIDescriptor" = type { %"class.llvm::MDNode"* }
%"class.llvm::DIScope" = type { %"class.llvm::DIDescriptor" }
%"class.llvm::ArrayRef.208" = type { i32*, i64 }
%"class.llvm::SmallVector.209" = type { %"class.llvm::SmallVectorImpl.210", %"struct.llvm::SmallVectorStorage.214" }
%"class.llvm::SmallVectorImpl.210" = type { %"class.llvm::SmallVectorTemplateBase.211" }
%"class.llvm::SmallVectorTemplateBase.211" = type { %"class.llvm::SmallVectorTemplateCommon.212" }
%"class.llvm::SmallVectorTemplateCommon.212" = type { %"class.llvm::SmallVectorBase", %"struct.llvm::AlignedCharArrayUnion.213" }
%"struct.llvm::AlignedCharArrayUnion.213" = type { %"struct.llvm::AlignedCharArray" }
%"struct.llvm::SmallVectorStorage.214" = type { [7 x %"struct.llvm::AlignedCharArrayUnion.213"] }
%"class.llvm::Twine" = type { %"union.llvm::Twine::Child", %"union.llvm::Twine::Child", i8, i8 }
%"union.llvm::Twine::Child" = type { %"class.llvm::Twine"* }
%"struct.std::random_access_iterator_tag" = type { i8 }
declare void @_ZN4llvm19MachineRegisterInfo27removeRegOperandFromUseListEPNS_14MachineOperandE(%"class.llvm::MachineRegisterInfo"*, %"class.llvm::MachineOperand"*)
declare void @_ZN4llvm19MachineRegisterInfo22addRegOperandToUseListEPNS_14MachineOperandE(%"class.llvm::MachineRegisterInfo"*, %"class.llvm::MachineOperand"*)
declare zeroext i32 @_ZNK4llvm14MCRegisterInfo9getSubRegEjj(%"class.llvm::MCRegisterInfo"*, i32 zeroext, i32 zeroext)
define void @_ZN4llvm14MachineOperand12substPhysRegEjRKNS_18TargetRegisterInfoE(%"class.llvm::MachineOperand"* %this, i32 zeroext %Reg, %"class.llvm::TargetRegisterInfo"* %TRI) align 2 {
entry:
%SubReg_TargetFlags.i = getelementptr inbounds %"class.llvm::MachineOperand"* %this, i64 0, i32 1
%0 = bitcast [3 x i8]* %SubReg_TargetFlags.i to i24*
%bf.load.i = load i24* %0, align 1
%bf.lshr.i = lshr i24 %bf.load.i, 12
%tobool = icmp eq i24 %bf.lshr.i, 0
br i1 %tobool, label %if.end, label %if.then
if.then: ; preds = %entry
%bf.cast.i = zext i24 %bf.lshr.i to i32
%add.ptr = getelementptr inbounds %"class.llvm::TargetRegisterInfo"* %TRI, i64 0, i32 1
%call3 = tail call zeroext i32 @_ZNK4llvm14MCRegisterInfo9getSubRegEjj(%"class.llvm::MCRegisterInfo"* %add.ptr, i32 zeroext %Reg, i32 zeroext %bf.cast.i)
%bf.load.i10 = load i24* %0, align 1
%bf.clear.i = and i24 %bf.load.i10, 4095
store i24 %bf.clear.i, i24* %0, align 1
br label %if.end
if.end: ; preds = %entry, %if.then
%Reg.addr.0 = phi i32 [ %call3, %if.then ], [ %Reg, %entry ]
%RegNo.i.i = getelementptr inbounds %"class.llvm::MachineOperand"* %this, i64 0, i32 2, i32 0
TBAA: remove !tbaa from testing cases when they are not needed. This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188944 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-21 22:20:53 +00:00
%1 = load i32* %RegNo.i.i, align 4
This patch addresses bug 15031. The common code in the post-RA scheduler to break anti-dependencies on the critical path contained a flaw. In the reported case, an anti-dependency between the overlapping registers %X4 and %R4 exists: %X29<def> = OR8 %X4, %X4 %R4<def>, %X3<def,dead,tied3> = LBZU 1, %X3<kill,tied1> The unpatched code breaks the dependency by replacing %R4 and its uses with %R3, the first register on the available list. However, %R3 and %X3 overlap, so this creates two overlapping definitions on the same instruction. The fix is straightforward, preventing selection of a register that overlaps any other defined register on the same instruction. The test case is reduced from the bug report, and verifies that we no longer produce "lbzu 3, 1(3)" when breaking this anti-dependency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173706 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28 18:36:58 +00:00
%cmp.i = icmp eq i32 %1, %Reg.addr.0
br i1 %cmp.i, label %_ZN4llvm14MachineOperand6setRegEj.exit, label %if.end.i
if.end.i: ; preds = %if.end
%ParentMI.i.i = getelementptr inbounds %"class.llvm::MachineOperand"* %this, i64 0, i32 3
TBAA: remove !tbaa from testing cases when they are not needed. This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188944 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-21 22:20:53 +00:00
%2 = load %"class.llvm::MachineInstr"** %ParentMI.i.i, align 8
This patch addresses bug 15031. The common code in the post-RA scheduler to break anti-dependencies on the critical path contained a flaw. In the reported case, an anti-dependency between the overlapping registers %X4 and %R4 exists: %X29<def> = OR8 %X4, %X4 %R4<def>, %X3<def,dead,tied3> = LBZU 1, %X3<kill,tied1> The unpatched code breaks the dependency by replacing %R4 and its uses with %R3, the first register on the available list. However, %R3 and %X3 overlap, so this creates two overlapping definitions on the same instruction. The fix is straightforward, preventing selection of a register that overlaps any other defined register on the same instruction. The test case is reduced from the bug report, and verifies that we no longer produce "lbzu 3, 1(3)" when breaking this anti-dependency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173706 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28 18:36:58 +00:00
%tobool.i = icmp eq %"class.llvm::MachineInstr"* %2, null
br i1 %tobool.i, label %if.end13.i, label %if.then3.i
if.then3.i: ; preds = %if.end.i
%Parent.i.i = getelementptr inbounds %"class.llvm::MachineInstr"* %2, i64 0, i32 2
TBAA: remove !tbaa from testing cases when they are not needed. This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188944 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-21 22:20:53 +00:00
%3 = load %"class.llvm::MachineBasicBlock"** %Parent.i.i, align 8
This patch addresses bug 15031. The common code in the post-RA scheduler to break anti-dependencies on the critical path contained a flaw. In the reported case, an anti-dependency between the overlapping registers %X4 and %R4 exists: %X29<def> = OR8 %X4, %X4 %R4<def>, %X3<def,dead,tied3> = LBZU 1, %X3<kill,tied1> The unpatched code breaks the dependency by replacing %R4 and its uses with %R3, the first register on the available list. However, %R3 and %X3 overlap, so this creates two overlapping definitions on the same instruction. The fix is straightforward, preventing selection of a register that overlaps any other defined register on the same instruction. The test case is reduced from the bug report, and verifies that we no longer produce "lbzu 3, 1(3)" when breaking this anti-dependency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173706 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28 18:36:58 +00:00
%tobool5.i = icmp eq %"class.llvm::MachineBasicBlock"* %3, null
br i1 %tobool5.i, label %if.end13.i, label %if.then6.i
if.then6.i: ; preds = %if.then3.i
%xParent.i.i = getelementptr inbounds %"class.llvm::MachineBasicBlock"* %3, i64 0, i32 4
TBAA: remove !tbaa from testing cases when they are not needed. This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188944 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-21 22:20:53 +00:00
%4 = load %"class.llvm::MachineFunction"** %xParent.i.i, align 8
This patch addresses bug 15031. The common code in the post-RA scheduler to break anti-dependencies on the critical path contained a flaw. In the reported case, an anti-dependency between the overlapping registers %X4 and %R4 exists: %X29<def> = OR8 %X4, %X4 %R4<def>, %X3<def,dead,tied3> = LBZU 1, %X3<kill,tied1> The unpatched code breaks the dependency by replacing %R4 and its uses with %R3, the first register on the available list. However, %R3 and %X3 overlap, so this creates two overlapping definitions on the same instruction. The fix is straightforward, preventing selection of a register that overlaps any other defined register on the same instruction. The test case is reduced from the bug report, and verifies that we no longer produce "lbzu 3, 1(3)" when breaking this anti-dependency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173706 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28 18:36:58 +00:00
%tobool8.i = icmp eq %"class.llvm::MachineFunction"* %4, null
br i1 %tobool8.i, label %if.end13.i, label %if.then9.i
if.then9.i: ; preds = %if.then6.i
%RegInfo.i.i = getelementptr inbounds %"class.llvm::MachineFunction"* %4, i64 0, i32 5
TBAA: remove !tbaa from testing cases when they are not needed. This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188944 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-21 22:20:53 +00:00
%5 = load %"class.llvm::MachineRegisterInfo"** %RegInfo.i.i, align 8
This patch addresses bug 15031. The common code in the post-RA scheduler to break anti-dependencies on the critical path contained a flaw. In the reported case, an anti-dependency between the overlapping registers %X4 and %R4 exists: %X29<def> = OR8 %X4, %X4 %R4<def>, %X3<def,dead,tied3> = LBZU 1, %X3<kill,tied1> The unpatched code breaks the dependency by replacing %R4 and its uses with %R3, the first register on the available list. However, %R3 and %X3 overlap, so this creates two overlapping definitions on the same instruction. The fix is straightforward, preventing selection of a register that overlaps any other defined register on the same instruction. The test case is reduced from the bug report, and verifies that we no longer produce "lbzu 3, 1(3)" when breaking this anti-dependency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173706 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28 18:36:58 +00:00
tail call void @_ZN4llvm19MachineRegisterInfo27removeRegOperandFromUseListEPNS_14MachineOperandE(%"class.llvm::MachineRegisterInfo"* %5, %"class.llvm::MachineOperand"* %this)
TBAA: remove !tbaa from testing cases when they are not needed. This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188944 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-21 22:20:53 +00:00
store i32 %Reg.addr.0, i32* %RegNo.i.i, align 4
This patch addresses bug 15031. The common code in the post-RA scheduler to break anti-dependencies on the critical path contained a flaw. In the reported case, an anti-dependency between the overlapping registers %X4 and %R4 exists: %X29<def> = OR8 %X4, %X4 %R4<def>, %X3<def,dead,tied3> = LBZU 1, %X3<kill,tied1> The unpatched code breaks the dependency by replacing %R4 and its uses with %R3, the first register on the available list. However, %R3 and %X3 overlap, so this creates two overlapping definitions on the same instruction. The fix is straightforward, preventing selection of a register that overlaps any other defined register on the same instruction. The test case is reduced from the bug report, and verifies that we no longer produce "lbzu 3, 1(3)" when breaking this anti-dependency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173706 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28 18:36:58 +00:00
tail call void @_ZN4llvm19MachineRegisterInfo22addRegOperandToUseListEPNS_14MachineOperandE(%"class.llvm::MachineRegisterInfo"* %5, %"class.llvm::MachineOperand"* %this)
br label %_ZN4llvm14MachineOperand6setRegEj.exit
if.end13.i: ; preds = %if.then6.i, %if.then3.i, %if.end.i
TBAA: remove !tbaa from testing cases when they are not needed. This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188944 91177308-0d34-0410-b5e6-96231b3b80d8
2013-08-21 22:20:53 +00:00
store i32 %Reg.addr.0, i32* %RegNo.i.i, align 4
This patch addresses bug 15031. The common code in the post-RA scheduler to break anti-dependencies on the critical path contained a flaw. In the reported case, an anti-dependency between the overlapping registers %X4 and %R4 exists: %X29<def> = OR8 %X4, %X4 %R4<def>, %X3<def,dead,tied3> = LBZU 1, %X3<kill,tied1> The unpatched code breaks the dependency by replacing %R4 and its uses with %R3, the first register on the available list. However, %R3 and %X3 overlap, so this creates two overlapping definitions on the same instruction. The fix is straightforward, preventing selection of a register that overlaps any other defined register on the same instruction. The test case is reduced from the bug report, and verifies that we no longer produce "lbzu 3, 1(3)" when breaking this anti-dependency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173706 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-28 18:36:58 +00:00
br label %_ZN4llvm14MachineOperand6setRegEj.exit
_ZN4llvm14MachineOperand6setRegEj.exit: ; preds = %if.end, %if.then9.i, %if.end13.i
ret void
}
; CHECK-NOT: lbzu 3, 1(3)
Reference in New Issue Copy Permalink