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Rename COPY_TO_SUBCLASS to COPY_TO_REGCLASS, and generalize

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it accordingly. Thanks to Jakob Stoklund Olesen for pointing
out how this might be useful.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68986 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2009-04-13 21:06:25 +00:00
parent 26cbf9eb99
commit 88c7af096b
10 changed files with 46 additions and 45 deletions
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2
include/llvm/Target/Target.td
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@@ -400,7 +400,7 @@ def SUBREG_TO_REG : Instruction {
let Namespace = "TargetInstrInfo";
let neverHasSideEffects = 1;
}
def COPY_TO_SUBCLASS : Instruction {
def COPY_TO_REGCLASS : Instruction {
let OutOperandList = (ops unknown:$dst);
let InOperandList = (ops unknown:$src, i32imm:$regclass);
let AsmString = "";

10
include/llvm/Target/TargetInstrInfo.h
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@@ -75,12 +75,14 @@ public:
/// zext from i32 to i64 via implicit zero-extension).
SUBREG_TO_REG = 9,
/// COPY_TO_SUBCLASS - This instruction is a placeholder for a plain
/// COPY_TO_REGCLASS - This instruction is a placeholder for a plain
/// register-to-register copy into a specific register class. This is only
/// used between instruction selection and MachineInstr creation, before
/// virtual registers have been created for all the instructions. As with
/// normal copies, these may be optimized away by the coalescer.
COPY_TO_SUBCLASS = 10
/// virtual registers have been created for all the instructions, and it's
/// only needed in cases where the register classes implied by the
/// instructions are insufficient. The actual MachineInstrs to perform
/// the copy are emitted with the TargetInstrInfo::copyRegToReg hook.
COPY_TO_REGCLASS = 10
};
unsigned getNumOpcodes() const { return NumOpcodes; }