[llvm-branch-commits] [llvm] [AMDGPU][GlobalISel] Add COPY_SCC_VCC combine for VCC-SGPR-VGPR pattern (PR #179352)

Sat Feb 7 02:20:32 PST 2026

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Windows-->
# :window: Windows x64 Test Results

* 10729 tests passed
* 503 tests skipped

All executed tests passed, but another part of the build **failed**. Click on a failure below to see the details.

<details>
<summary>[code=4294967295] bin/llvm-lto2.exe</summary>

```
FAILED: [code=4294967295] bin/llvm-lto2.exe
cmd.exe /C "cd . && C:\BuildTools\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe -E vs_link_exe --intdir=tools\llvm-lto2\CMakeFiles\llvm-lto2.dir --rc="C:\Program Files (x86)\Windows Kits\10\bin\10.0.19041.0\x64\rc.exe" --mt="C:\Program Files (x86)\Windows Kits\10\bin\10.0.19041.0\x64\mt.exe" --manifests  -- C:\clang\clang-msvc\bin\lld-link.exe /nologo @CMakeFiles\llvm-lto2.rsp  /out:bin\llvm-lto2.exe /implib:lib\llvm-lto2.lib /pdb:bin\llvm-lto2.pdb /version:0.0 /MANIFEST:NO /STACK:10000000 /INCREMENTAL:NO /subsystem:console  && cd ."
LINK: command "C:\clang\clang-msvc\bin\lld-link.exe /nologo @CMakeFiles\llvm-lto2.rsp /out:bin\llvm-lto2.exe /implib:lib\llvm-lto2.lib /pdb:bin\llvm-lto2.pdb /version:0.0 /MANIFEST:NO /STACK:10000000 /INCREMENTAL:NO /subsystem:console" failed (exit code 1) with the following output:
lld-link: error: undefined symbol: LLVMInitializeSystemZTargetMC
>>> referenced by tools\llvm-lto2\CMakeFiles\llvm-lto2.dir\llvm-lto2.cpp.obj:(void __cdecl llvm::InitializeAllTargetMCs(void))

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::GR64Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: virtual bool __cdecl `anonymous namespace'::SystemZAsmParser::parseRegister(class llvm::MCRegister &, class MCRegister::SMLoc &, class MCRegister::SMLoc &))
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: virtual class llvm::ParseStatus __cdecl `anonymous namespace'::SystemZAsmParser::tryParseRegister(class ParseStatus::MCRegister &, class ParseStatus::SMLoc &, class ParseStatus::SMLoc &))
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: class llvm::ParseStatus __cdecl `anonymous namespace'::SystemZAsmParser::parseAnyReg(class ParseStatus::SmallVectorImpl<class std::unique_ptr<class llvm::MCParsedAsmOperand, struct std::default_delete<class llvm::MCParsedAsmOperand>>> &))
>>> referenced 26 more times

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::CR64Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: virtual bool __cdecl `anonymous namespace'::SystemZAsmParser::parseRegister(class llvm::MCRegister &, class MCRegister::SMLoc &, class MCRegister::SMLoc &))
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: virtual class llvm::ParseStatus __cdecl `anonymous namespace'::SystemZAsmParser::tryParseRegister(class ParseStatus::MCRegister &, class ParseStatus::SMLoc &, class ParseStatus::SMLoc &))
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: class llvm::ParseStatus __cdecl `anonymous namespace'::SystemZAsmParser::parseAnyReg(class ParseStatus::SmallVectorImpl<class std::unique_ptr<class llvm::MCParsedAsmOperand, struct std::default_delete<class llvm::MCParsedAsmOperand>>> &))
>>> referenced 1 more times

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::VR128Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: virtual bool __cdecl `anonymous namespace'::SystemZAsmParser::parseRegister(class llvm::MCRegister &, class MCRegister::SMLoc &, class MCRegister::SMLoc &))
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: virtual class llvm::ParseStatus __cdecl `anonymous namespace'::SystemZAsmParser::tryParseRegister(class ParseStatus::MCRegister &, class ParseStatus::SMLoc &, class ParseStatus::SMLoc &))
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: class llvm::ParseStatus __cdecl `anonymous namespace'::SystemZAsmParser::parseAnyReg(class ParseStatus::SmallVectorImpl<class std::unique_ptr<class llvm::MCParsedAsmOperand, struct std::default_delete<class llvm::MCParsedAsmOperand>>> &))
>>> referenced 40 more times

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::AR32Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: virtual bool __cdecl `anonymous namespace'::SystemZAsmParser::parseRegister(class llvm::MCRegister &, class MCRegister::SMLoc &, class MCRegister::SMLoc &))
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: virtual class llvm::ParseStatus __cdecl `anonymous namespace'::SystemZAsmParser::tryParseRegister(class ParseStatus::MCRegister &, class ParseStatus::SMLoc &, class ParseStatus::SMLoc &))
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: class llvm::ParseStatus __cdecl `anonymous namespace'::SystemZAsmParser::parseAnyReg(class ParseStatus::SmallVectorImpl<class std::unique_ptr<class llvm::MCParsedAsmOperand, struct std::default_delete<class llvm::MCParsedAsmOperand>>> &))
>>> referenced 1 more times

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::FP64Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: virtual bool __cdecl `anonymous namespace'::SystemZAsmParser::parseRegister(class llvm::MCRegister &, class MCRegister::SMLoc &, class MCRegister::SMLoc &))
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: virtual class llvm::ParseStatus __cdecl `anonymous namespace'::SystemZAsmParser::tryParseRegister(class ParseStatus::MCRegister &, class ParseStatus::SMLoc &, class ParseStatus::SMLoc &))
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: class llvm::ParseStatus __cdecl `anonymous namespace'::SystemZAsmParser::parseAnyReg(class ParseStatus::SmallVectorImpl<class std::unique_ptr<class llvm::MCParsedAsmOperand, struct std::default_delete<class llvm::MCParsedAsmOperand>>> &))
>>> referenced 18 more times

lld-link: error: undefined symbol: public: static char const * __cdecl llvm::SystemZGNUInstPrinter::getRegisterName(class llvm::MCRegister)
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: virtual void __cdecl `anonymous namespace'::SystemZOperand::print(class llvm::raw_ostream &, class raw_ostream::MCAsmInfo const &) const)
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: virtual void __cdecl `anonymous namespace'::SystemZOperand::print(class llvm::raw_ostream &, class raw_ostream::MCAsmInfo const &) const)
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(public: virtual void __cdecl `anonymous namespace'::SystemZOperand::print(class llvm::raw_ostream &, class raw_ostream::MCAsmInfo const &) const)
>>> referenced 2 more times

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::GR32Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(private: class llvm::ParseStatus __cdecl `anonymous namespace'::SystemZAsmParser::parseAddress(class ParseStatus::SmallVectorImpl<class std::unique_ptr<class llvm::MCParsedAsmOperand, struct std::default_delete<class llvm::MCParsedAsmOperand>>> &, enum `anonymous namespace'::MemoryKind, enum `anonymous namespace'::RegisterKind))
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(private: class llvm::ParseStatus __cdecl `anonymous namespace'::SystemZAsmParser::parseAddress(class ParseStatus::SmallVectorImpl<class std::unique_ptr<class llvm::MCParsedAsmOperand, struct std::default_delete<class llvm::MCParsedAsmOperand>>> &, enum `anonymous namespace'::MemoryKind, enum `anonymous namespace'::RegisterKind))
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(switch.table.?parseRegister at SystemZAsmParser@?A0x3F544EA6@@AEAA?AVParseStatus at llvm@@AEAV?$SmallVectorImpl at V?$unique_ptr at VMCParsedAsmOperand@llvm@@U?$default_delete at VMCParsedAsmOperand@llvm@@@std@@@std@@@3 at W4RegisterKind@?A0x3F544EA6@@@Z)
>>> referenced 4 more times

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::GRH32Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(switch.table.?parseRegister at SystemZAsmParser@?A0x3F544EA6@@AEAA?AVParseStatus at llvm@@AEAV?$SmallVectorImpl at V?$unique_ptr at VMCParsedAsmOperand@llvm@@U?$default_delete at VMCParsedAsmOperand@llvm@@@std@@@std@@@3 at W4RegisterKind@?A0x3F544EA6@@@Z)
>>> referenced by LLVMSystemZCodeGen.lib(SystemZAsmPrinter.cpp.obj):(public: virtual void __cdecl llvm::SystemZAsmPrinter::emitInstruction(class llvm::MachineInstr const *))
>>> referenced by LLVMSystemZCodeGen.lib(SystemZAsmPrinter.cpp.obj):(class llvm::MCInst __cdecl lowerRIHigh(class llvm::MachineInstr const *, unsigned int))
>>> referenced 1 more times

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::GR128Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(switch.table.?parseRegister at SystemZAsmParser@?A0x3F544EA6@@AEAA?AVParseStatus at llvm@@AEAV?$SmallVectorImpl at V?$unique_ptr at VMCParsedAsmOperand@llvm@@U?$default_delete at VMCParsedAsmOperand@llvm@@@std@@@std@@@3 at W4RegisterKind@?A0x3F544EA6@@@Z)
>>> referenced by LLVMSystemZCodeGen.lib(SystemZISelLowering.cpp.obj):(public: virtual struct std::pair<unsigned int, class llvm::TargetRegisterClass const *> __cdecl llvm::SystemZTargetLowering::getRegForInlineAsmConstraint(class llvm::TargetRegisterInfo const *, class llvm::StringRef, class llvm::MVT) const)

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::FP16Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(switch.table.?parseRegister at SystemZAsmParser@?A0x3F544EA6@@AEAA?AVParseStatus at llvm@@AEAV?$SmallVectorImpl at V?$unique_ptr at VMCParsedAsmOperand@llvm@@U?$default_delete at VMCParsedAsmOperand@llvm@@@std@@@std@@@3 at W4RegisterKind@?A0x3F544EA6@@@Z)
>>> referenced by LLVMSystemZCodeGen.lib(SystemZISelLowering.cpp.obj):(public: virtual struct std::pair<unsigned int, class llvm::TargetRegisterClass const *> __cdecl llvm::SystemZTargetLowering::getRegForInlineAsmConstraint(class llvm::TargetRegisterInfo const *, class llvm::StringRef, class llvm::MVT) const)

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::FP32Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(switch.table.?parseRegister at SystemZAsmParser@?A0x3F544EA6@@AEAA?AVParseStatus at llvm@@AEAV?$SmallVectorImpl at V?$unique_ptr at VMCParsedAsmOperand@llvm@@U?$default_delete at VMCParsedAsmOperand@llvm@@@std@@@std@@@3 at W4RegisterKind@?A0x3F544EA6@@@Z)
>>> referenced by LLVMSystemZCodeGen.lib(SystemZISelLowering.cpp.obj):(public: virtual struct std::pair<unsigned int, class llvm::TargetRegisterClass const *> __cdecl llvm::SystemZTargetLowering::getRegForInlineAsmConstraint(class llvm::TargetRegisterInfo const *, class llvm::StringRef, class llvm::MVT) const)

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::FP128Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(switch.table.?parseRegister at SystemZAsmParser@?A0x3F544EA6@@AEAA?AVParseStatus at llvm@@AEAV?$SmallVectorImpl at V?$unique_ptr at VMCParsedAsmOperand@llvm@@U?$default_delete at VMCParsedAsmOperand@llvm@@@std@@@std@@@3 at W4RegisterKind@?A0x3F544EA6@@@Z)
>>> referenced by LLVMSystemZCodeGen.lib(SystemZISelLowering.cpp.obj):(public: virtual struct std::pair<unsigned int, class llvm::TargetRegisterClass const *> __cdecl llvm::SystemZTargetLowering::getRegForInlineAsmConstraint(class llvm::TargetRegisterInfo const *, class llvm::StringRef, class llvm::MVT) const)

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::VR16Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(switch.table.?parseRegister at SystemZAsmParser@?A0x3F544EA6@@AEAA?AVParseStatus at llvm@@AEAV?$SmallVectorImpl at V?$unique_ptr at VMCParsedAsmOperand@llvm@@U?$default_delete at VMCParsedAsmOperand@llvm@@@std@@@std@@@3 at W4RegisterKind@?A0x3F544EA6@@@Z)
>>> referenced by LLVMSystemZCodeGen.lib(SystemZISelLowering.cpp.obj):(public: virtual struct std::pair<unsigned int, class llvm::TargetRegisterClass const *> __cdecl llvm::SystemZTargetLowering::getRegForInlineAsmConstraint(class llvm::TargetRegisterInfo const *, class llvm::StringRef, class llvm::MVT) const)

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::VR32Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(switch.table.?parseRegister at SystemZAsmParser@?A0x3F544EA6@@AEAA?AVParseStatus at llvm@@AEAV?$SmallVectorImpl at V?$unique_ptr at VMCParsedAsmOperand@llvm@@U?$default_delete at VMCParsedAsmOperand@llvm@@@std@@@std@@@3 at W4RegisterKind@?A0x3F544EA6@@@Z)
>>> referenced by LLVMSystemZCodeGen.lib(SystemZISelLowering.cpp.obj):(public: virtual struct std::pair<unsigned int, class llvm::TargetRegisterClass const *> __cdecl llvm::SystemZTargetLowering::getRegForInlineAsmConstraint(class llvm::TargetRegisterInfo const *, class llvm::StringRef, class llvm::MVT) const)

lld-link: error: undefined symbol: unsigned int const *const llvm::SystemZMC::VR64Regs
>>> referenced by LLVMSystemZAsmParser.lib(SystemZAsmParser.cpp.obj):(switch.table.?parseRegister at SystemZAsmParser@?A0x3F544EA6@@AEAA?AVParseStatus at llvm@@AEAV?$SmallVectorImpl at V?$unique_ptr at VMCParsedAsmOperand@llvm@@U?$default_delete at VMCParsedAsmOperand@llvm@@@std@@@std@@@3 at W4RegisterKind@?A0x3F544EA6@@@Z)
>>> referenced by LLVMSystemZCodeGen.lib(SystemZISelLowering.cpp.obj):(public: virtual struct std::pair<unsigned int, class llvm::TargetRegisterClass const *> __cdecl llvm::SystemZTargetLowering::getRegForInlineAsmConstraint(class llvm::TargetRegisterInfo const *, class llvm::StringRef, class llvm::MVT) const)

lld-link: error: undefined symbol: void __cdecl llvm::SystemZ_MC::verifyInstructionPredicates(unsigned int, class llvm::FeatureBitset const &)
>>> referenced by LLVMSystemZCodeGen.lib(SystemZAsmPrinter.cpp.obj):(public: virtual void __cdecl llvm::SystemZAsmPrinter::emitInstruction(class llvm::MachineInstr const *))

lld-link: error: undefined symbol: unsigned int __cdecl llvm::SystemZMC::getFirstReg(unsigned int)
>>> referenced by LLVMSystemZCodeGen.lib(SystemZAsmPrinter.cpp.obj):(public: virtual void __cdecl llvm::SystemZAsmPrinter::emitInstruction(class llvm::MachineInstr const *))
>>> referenced by LLVMSystemZCodeGen.lib(SystemZAsmPrinter.cpp.obj):(public: virtual void __cdecl llvm::SystemZAsmPrinter::emitInstruction(class llvm::MachineInstr const *))
>>> referenced by LLVMSystemZCodeGen.lib(SystemZAsmPrinter.cpp.obj):(public: virtual void __cdecl llvm::SystemZAsmPrinter::emitInstruction(class llvm::MachineInstr const *))
>>> referenced 30 more times

lld-link: error: undefined symbol: public: static char const * __cdecl llvm::SystemZHLASMInstPrinter::getRegisterName(class llvm::MCRegister)
>>> referenced by LLVMSystemZCodeGen.lib(SystemZAsmPrinter.cpp.obj):(void __cdecl printFormattedRegName(class llvm::MCAsmInfo const *, unsigned int, class llvm::raw_ostream &))

lld-link: error: undefined symbol: struct llvm::SystemZInstrTable const llvm::SystemZDescs
>>> referenced by LLVMSystemZCodeGen.lib(SystemZInstrInfo.cpp.obj):(public: __cdecl llvm::SystemZGenInstrInfo::SystemZGenInstrInfo(class llvm::TargetSubtargetInfo const &, class llvm::TargetRegisterInfo const &, unsigned int, unsigned int, unsigned int, unsigned int))
>>> referenced by LLVMSystemZCodeGen.lib(SystemZInstrInfo.cpp.obj):(public: __cdecl llvm::SystemZInstrInfo::SystemZInstrInfo(class llvm::SystemZSubtarget const &))

lld-link: error: too many errors emitted, stopping now (use /errorlimit:0 to see all errors)
```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/179352