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Prevent LoopVectorizer and SLPVectorizer running if the target has no vector registers.

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XCore target: Add XCoreTargetTransformInfo
This is where getNumberOfRegisters() resides, which in turn returns the
number of vector registers (=0).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190936 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Robert Lytton
2013-09-18 12:43:35 +00:00
parent af96481135
commit d072d1b2a3
9 changed files with 172 additions and 0 deletions
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8
lib/Target/XCore/XCoreTargetMachine.cpp
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@@ -70,3 +70,11 @@ bool XCorePassConfig::addInstSelector() {
extern "C" void LLVMInitializeXCoreTarget() {
RegisterTargetMachine<XCoreTargetMachine> X(TheXCoreTarget);
}
void XCoreTargetMachine::addAnalysisPasses(PassManagerBase &PM) {
// Add first the target-independent BasicTTI pass, then our XCore pass. This
// allows the XCore pass to delegate to the target independent layer when
// appropriate.
PM.add(createBasicTargetTransformInfoPass(this));
PM.add(createXCoreTargetTransformInfoPass(this));
}