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The promotion rules are the same for all targets, they are set by the C standard.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5962 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-04-26 19:47:36 +00:00
parent 7a5adc3ac0
commit 37ec811409
1 changed files with 3 additions and 9 deletions
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12
lib/Target/TargetMachine.cpp
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@ -20,16 +20,10 @@
// function TargetMachine::findOptimalStorageSize // function TargetMachine::findOptimalStorageSize
// //
// Purpose:
// This default implementation assumes that all sub-word data items use
// space equal to optSizeForSubWordData, and all other primitive data
// items use space according to the type.
//
unsigned TargetMachine::findOptimalStorageSize(const Type *Ty) const { unsigned TargetMachine::findOptimalStorageSize(const Type *Ty) const {
// Round integral values smaller than SubWordDataSize up to SubWordDataSize // All integer types smaller than ints promote to 4 byte integers.
if (Ty->isIntegral() && if (Ty->isIntegral() && Ty->getPrimitiveSize() < 4)
Ty->getPrimitiveSize() < DataLayout.getSubWordDataSize()) return 4;
return DataLayout.getSubWordDataSize();
return DataLayout.getTypeSize(Ty); return DataLayout.getTypeSize(Ty);
} }