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Refactor ABI code in the PowerPC backend.

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Make CalculateParameterAndLinkageAreaSize() Darwin-specific.
Remove SVR4 specific code from LowerCALL_Darwin() and LowerFORMAL_ARGUMENTS_Darwin().
Rename MachoABI to DarwinABI for consistency.
Rename ELF ABI to SVR4 ABI for consistency.
Factor out common call return lowering between the Darwin and SVR4 ABI.
Factor out common call lowering between the Darwin and SVR4 ABI.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74766 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tilmann Scheller
2009-07-03 06:47:08 +00:00
parent ffd0200abf
commit 2a9ddfb903
12 changed files with 370 additions and 572 deletions
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19
lib/Target/PowerPC/PPCISelLowering.h
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@@ -82,7 +82,7 @@ namespace llvm {
STD_32,
/// CALL - A direct function call.
CALL_Macho, CALL_ELF,
CALL_Darwin, CALL_SVR4,
/// CHAIN,FLAG = MTCTR(VAL, CHAIN[, INFLAG]) - Directly corresponds to a
/// MTCTR instruction.
@@ -90,7 +90,7 @@ namespace llvm {
/// CHAIN,FLAG = BCTRL(CHAIN, INFLAG) - Directly corresponds to a
/// BCTRL instruction.
BCTRL_Macho, BCTRL_ELF,
BCTRL_Darwin, BCTRL_SVR4,
/// Return with a flag operand, matched by 'blr'
RET_FLAG,
@@ -352,7 +352,7 @@ namespace llvm {
SDValue Chain,
SDValue &LROpOut,
SDValue &FPOpOut,
bool isMachoABI,
bool isDarwinABI,
DebugLoc dl);
SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG);
@@ -376,14 +376,11 @@ namespace llvm {
unsigned &VarArgsNumGPR,
unsigned &VarArgsNumFPR,
const PPCSubtarget &Subtarget);
SDValue LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG,
int &VarArgsFrameIndex,
int &VarArgsStackOffset,
unsigned &VarArgsNumGPR,
unsigned &VarArgsNumFPR,
const PPCSubtarget &Subtarget);
SDValue LowerCALL(SDValue Op, SelectionDAG &DAG,
const PPCSubtarget &Subtarget, TargetMachine &TM);
SDValue LowerFORMAL_ARGUMENTS_Darwin(SDValue Op, SelectionDAG &DAG,
int &VarArgsFrameIndex,
const PPCSubtarget &Subtarget);
SDValue LowerCALL_Darwin(SDValue Op, SelectionDAG &DAG,
const PPCSubtarget &Subtarget, TargetMachine &TM);
SDValue LowerCALL_SVR4(SDValue Op, SelectionDAG &DAG,
const PPCSubtarget &Subtarget, TargetMachine &TM);
SDValue LowerRET(SDValue Op, SelectionDAG &DAG, TargetMachine &TM);