6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-02-14 17:34:41 +00:00
Code Issues Projects Releases Wiki Activity

Change interface to MachineInstr::substituteValue to specify more precisely

Browse Source 
which args can be substituted: defsOnly, defsAndUses or usesOnly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7154 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vikram S. Adve 2003-07-10 19:45:07 +00:00
parent 51bda6fccb
commit 627eb31cd7
2 changed files with 23 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/llvm/CodeGen/MachineInstr.h
View File

@ -646,7 +646,8 @@ public:
unsigned substituteValue(const Value* oldVal, Value* newVal, unsigned substituteValue(const Value* oldVal, Value* newVal,
bool defsOnly = true); bool defsOnly, bool notDefsAndUses,
bool& someArgsWereIgnored);
void setOperandHi32(unsigned i) { operands[i].markHi32(); } void setOperandHi32(unsigned i) { operands[i].markHi32(); }
void setOperandLo32(unsigned i) { operands[i].markLo32(); } void setOperandLo32(unsigned i) { operands[i].markLo32(); }

28
lib/CodeGen/MachineInstr.cpp
View File

@ -153,29 +153,43 @@ MachineInstr::SetRegForImplicitRef(unsigned i, int regNum)
// Subsitute all occurrences of Value* oldVal with newVal in all operands // Subsitute all occurrences of Value* oldVal with newVal in all operands
// and all implicit refs. If defsOnly == true, substitute defs only. // and all implicit refs.
// If defsOnly == true, substitute defs only.
unsigned unsigned
MachineInstr::substituteValue(const Value* oldVal, Value* newVal, bool defsOnly) MachineInstr::substituteValue(const Value* oldVal, Value* newVal,
bool defsOnly, bool notDefsAndUses,
bool& someArgsWereIgnored)
{ {
assert((defsOnly || !notDefsAndUses) &&
"notDefsAndUses is irrelevant if defsOnly == false.");
unsigned numSubst = 0; unsigned numSubst = 0;
// Subsitute operands // Subsitute operands
for (MachineInstr::val_op_iterator O = begin(), E = end(); O != E; ++O) for (MachineInstr::val_op_iterator O = begin(), E = end(); O != E; ++O)
if (*O == oldVal) if (*O == oldVal)
if (!defsOnly || !O.isUseOnly()) if (!defsOnly ||
notDefsAndUses && O.isDefOnly() ||
!notDefsAndUses && !O.isUseOnly())
{ {
O.getMachineOperand().value = newVal; O.getMachineOperand().value = newVal;
++numSubst; ++numSubst;
} }
else
someArgsWereIgnored = true;
// Subsitute implicit refs // Subsitute implicit refs
for (unsigned i=0, N=getNumImplicitRefs(); i < N; ++i) for (unsigned i=0, N=getNumImplicitRefs(); i < N; ++i)
if (getImplicitRef(i) == oldVal) if (getImplicitRef(i) == oldVal)
if (!defsOnly || !getImplicitOp(i).opIsUse()) if (!defsOnly ||
notDefsAndUses && getImplicitOp(i).opIsDefOnly() ||
!notDefsAndUses && !getImplicitOp(i).opIsUse())
{ {
getImplicitOp(i).value = newVal; getImplicitOp(i).value = newVal;
++numSubst; ++numSubst;
} }
else
someArgsWereIgnored = true;
return numSubst; return numSubst;
} }
@ -191,10 +205,10 @@ static inline std::ostream&
OutputValue(std::ostream &os, const Value* val) OutputValue(std::ostream &os, const Value* val)
{ {
os << "(val "; os << "(val ";
os << (void*) val; // print address always
if (val && val->hasName()) if (val && val->hasName())
return os << val->getName() << ")"; os << " " << val->getName() << ")"; // print name also, if available
else return os;
return os << (void*) val << ")"; // print address only
} }
static inline void OutputReg(std::ostream &os, unsigned RegNo, static inline void OutputReg(std::ostream &os, unsigned RegNo,