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Add comments to describe what these functions actually do.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9370 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Misha Brukman 2003-10-22 05:50:40 +00:00
parent 3494329a26
commit 0b51e4a438
1 changed files with 7 additions and 0 deletions
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7
lib/Target/SparcV9/SparcV9InstrSelectionSupport.h
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@ -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) {