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Change typeIncompatible to return an AttrBuilder instead of new-ing an AttributeSet.

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This makes use of the new API which can remove attributes from a set given a builder.

This is much faster than creating a temporary set and reduces llc time by about 0.3% which was all spent creating temporary attributes sets on the context.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236668 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Pete Cooper
2015-05-06 23:19:56 +00:00
parent 4716d634a2
commit a7574638e7
6 changed files with 23 additions and 39 deletions
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13
lib/Transforms/InstCombine/InstCombineCalls.cpp
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@@ -1513,10 +1513,7 @@ bool InstCombiner::transformConstExprCastCall(CallSite CS) {
if (!CallerPAL.isEmpty() && !Caller->use_empty()) {
AttrBuilder RAttrs(CallerPAL, AttributeSet::ReturnIndex);
if (RAttrs.
hasAttributes(AttributeFuncs::
typeIncompatible(NewRetTy, AttributeSet::ReturnIndex),
AttributeSet::ReturnIndex))
if (RAttrs.overlaps(AttributeFuncs::typeIncompatible(NewRetTy)))
return false; // Attribute not compatible with transformed value.
}
@@ -1557,8 +1554,7 @@ bool InstCombiner::transformConstExprCastCall(CallSite CS) {
return false; // Cannot transform this parameter value.
if (AttrBuilder(CallerPAL.getParamAttributes(i + 1), i + 1).
hasAttributes(AttributeFuncs::
typeIncompatible(ParamTy, i + 1), i + 1))
overlaps(AttributeFuncs::typeIncompatible(ParamTy)))
return false; // Attribute not compatible with transformed value.
if (CS.isInAllocaArgument(i))
@@ -1631,10 +1627,7 @@ bool InstCombiner::transformConstExprCastCall(CallSite CS) {
// If the return value is not being used, the type may not be compatible
// with the existing attributes. Wipe out any problematic attributes.
RAttrs.
removeAttributes(AttributeFuncs::
typeIncompatible(NewRetTy, AttributeSet::ReturnIndex),
AttributeSet::ReturnIndex);
RAttrs.remove(AttributeFuncs::typeIncompatible(NewRetTy));
// Add the new return attributes.
if (RAttrs.hasAttributes())