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| author | Jay Foad <jay.foad@amd.com> | 2025-01-02 17:29:55 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-01-02 17:29:55 +0000 |
| commit | 1849244685bc42b07b1b14e3f62e15c535e74c39 (patch) | |
| tree | ffc975174ade0f93a43e1722ab76ca872f9141b7 /llvm/lib/CodeGen/MachineRegisterInfo.cpp | |
| parent | f739aa4004165dc64d3a1f418d5ad3c84886f01a (diff) | |
| download | llvm-1849244685bc42b07b1b14e3f62e15c535e74c39.zip llvm-1849244685bc42b07b1b14e3f62e15c535e74c39.tar.gz llvm-1849244685bc42b07b1b14e3f62e15c535e74c39.tar.bz2 | |
[CodeGen] Remove atEnd method from defusechain iterators (#120610)
This was not used much and there are better ways of writing it.
Diffstat (limited to 'llvm/lib/CodeGen/MachineRegisterInfo.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineRegisterInfo.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/llvm/lib/CodeGen/MachineRegisterInfo.cpp b/llvm/lib/CodeGen/MachineRegisterInfo.cpp index 6f636a1..394b99b 100644 --- a/llvm/lib/CodeGen/MachineRegisterInfo.cpp +++ b/llvm/lib/CodeGen/MachineRegisterInfo.cpp @@ -407,9 +407,11 @@ void MachineRegisterInfo::replaceRegWith(Register FromReg, Register ToReg) { MachineInstr *MachineRegisterInfo::getVRegDef(Register Reg) const { // Since we are in SSA form, we can use the first definition. def_instr_iterator I = def_instr_begin(Reg); - assert((I.atEnd() || std::next(I) == def_instr_end()) && - "getVRegDef assumes a single definition or no definition"); - return !I.atEnd() ? &*I : nullptr; + if (I == def_instr_end()) + return nullptr; + assert(std::next(I) == def_instr_end() && + "getVRegDef assumes at most one definition"); + return &*I; } /// getUniqueVRegDef - Return the unique machine instr that defines the |