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| author | Misha Brukman <brukman+llvm@gmail.com> | 2003-10-22 05:50:40 +0000 |
|---|---|---|
| committer | Misha Brukman <brukman+llvm@gmail.com> | 2003-10-22 05:50:40 +0000 |
| commit | 0b51e4a43839fcd9b5c4c0247f96ea79ad71a4bb (patch) | |
| tree | e3e5f1b2d2ee66b23c899a31707655649d6a7238 /lib | |
| parent | 3494329a261db1d692052a0d7acba4725b2a7356 (diff) | |
Add comments to describe what these functions actually do.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9370 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/SparcV9/SparcV9InstrSelectionSupport.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Target/SparcV9/SparcV9InstrSelectionSupport.h b/lib/Target/SparcV9/SparcV9InstrSelectionSupport.h index 7a3c081d15..d49863c1c8 100644 --- a/lib/Target/SparcV9/SparcV9InstrSelectionSupport.h +++ b/lib/Target/SparcV9/SparcV9InstrSelectionSupport.h @@ -17,6 +17,7 @@ #include "llvm/DerivedTypes.h" #include "SparcInternals.h" +// Choose load instruction opcode based on type of value inline MachineOpCode ChooseLoadInstruction(const Type *DestTy) { @@ -39,6 +40,7 @@ ChooseLoadInstruction(const Type *DestTy) return 0; } +// Choose store instruction opcode based on type of value inline MachineOpCode ChooseStoreInstruction(const Type *DestTy) { @@ -86,6 +88,11 @@ ChooseAddInstructionByType(const Type* resultType) } +// Because the Sparc instruction selector likes to re-write operands to +// instructions, making them change from a Value* (virtual register) to a +// Constant* (making an immediate field), we need to change the opcode from a +// register-based instruction to an immediate-based instruction, hence this +// mapping. static unsigned convertOpcodeFromRegToImm(unsigned Opcode) { switch (Opcode) { |