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| author | Vikram S. Adve <vadve@cs.uiuc.edu> | 2001-10-22 13:41:12 +0000 |
|---|---|---|
| committer | Vikram S. Adve <vadve@cs.uiuc.edu> | 2001-10-22 13:41:12 +0000 |
| commit | 8498277e77a6dfb6fa6710ad9564ab9aa4493ad7 (patch) | |
| tree | 890225ed1bc4c2a717dbad641a192b1f2c65a59c /llvm/lib/Target/Sparc | |
| parent | 52e41008e375f1a6ea3b0aef808043bdc0de430a (diff) | |
| download | bcm5719-llvm-8498277e77a6dfb6fa6710ad9564ab9aa4493ad7.tar.gz bcm5719-llvm-8498277e77a6dfb6fa6710ad9564ab9aa4493ad7.zip | |
Split JMPL into JMPLCALL and JMPLRET so that IsCall and IsReturn can
be used to distinguish those uses of the `jmpl' instruction.
llvm-svn: 940
Diffstat (limited to 'llvm/lib/Target/Sparc')
| -rw-r--r-- | llvm/lib/Target/Sparc/SparcRegInfo.cpp | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/llvm/lib/Target/Sparc/SparcRegInfo.cpp b/llvm/lib/Target/Sparc/SparcRegInfo.cpp index d65d57edce5..b28ce51b989 100644 --- a/llvm/lib/Target/Sparc/SparcRegInfo.cpp +++ b/llvm/lib/Target/Sparc/SparcRegInfo.cpp @@ -35,7 +35,7 @@ UltraSparcRegInfo::getCallInstRetVal(const MachineInstr *CallMI) const{ return CallMI->getImplicitRef(NumOfImpRefs-2); } - else if( OpCode == JMPL) { + else if( OpCode == JMPLCALL) { // The last implicit operand is the return value of a JMPL in if( NumOfImpRefs > 0 ) @@ -67,7 +67,7 @@ UltraSparcRegInfo::getCallInstRetAddr(const MachineInstr *CallMI)const { return CallMI->getImplicitRef(NumOfImpRefs-1); } - else if( OpCode == JMPL ) { + else if( OpCode == JMPLCALL ) { MachineOperand & MO = ( MachineOperand &) CallMI->getOperand(2); return MO.getVRegValue(); @@ -84,7 +84,7 @@ UltraSparcRegInfo::getCallInstRetAddr(const MachineInstr *CallMI)const { //--------------------------------------------------------------------------- -// Finds the # of actaul arguments of the call instruction +// Finds the # of actual arguments of the call instruction //--------------------------------------------------------------------------- const unsigned @@ -111,7 +111,7 @@ UltraSparcRegInfo::getCallInstNumArgs(const MachineInstr *CallMI) const { } } - else if( OpCode == JMPL ) { + else if( OpCode == JMPLCALL ) { // The last implicit operand is the return value of a JMPL instr if( NumOfImpRefs > 0 ) { @@ -136,19 +136,17 @@ UltraSparcRegInfo::getCallInstNumArgs(const MachineInstr *CallMI) const { //--------------------------------------------------------------------------- // Suggests a register for the ret address in the RET machine instruction //--------------------------------------------------------------------------- + void UltraSparcRegInfo::suggestReg4RetAddr(const MachineInstr * RetMI, LiveRangeInfo& LRI) const { - assert( (RetMI->getNumOperands() == 2) && "RETURN must have 2 operands"); + assert( (RetMI->getNumOperands() >= 2) + && "JMPL/RETURN must have 3 and 2 operands respectively"); + MachineOperand & MO = ( MachineOperand &) RetMI->getOperand(0); MO.setRegForValue( getUnifiedRegNum( IntRegClassID, SparcIntRegOrder::i7) ); - - // ***TODO: If the JMPL can be also used as a return instruction, - // change the assertion. The return address register of JMPL will still - // be Operand(0) - - + // TODO (Optimize): // Instead of setting the color, we can suggest one. In that case, // we have to test later whether it received the suggested color. |
