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Turn loads of ConstantPointerNulls into loads of zero... don't spill

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them into the constant pool.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14128 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Brian Gaeke 2004-06-11 02:03:48 +00:00
parent f616f22e81
commit 46bf5afa01
1 changed files with 6 additions and 0 deletions
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6
lib/Target/SparcV9/SparcV9InstrInfo.cpp
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@ -74,6 +74,12 @@ SparcV9InstrInfo::ConvertConstantToIntType(const TargetMachine &target,
return (uint64_t) CB->getValue(); return (uint64_t) CB->getValue();
} }
// ConstantPointerNull: it's really just a big, shiny version of zero.
if (const ConstantPointerNull *CPN = dyn_cast<ConstantPointerNull>(V)) {
isValidConstant = true;
return 0;
}
// For other types of constants, some conversion may be needed. // For other types of constants, some conversion may be needed.
// First, extract the constant operand according to its own type // First, extract the constant operand according to its own type
if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(V))