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[NVPTX] Use GreatestCommonDivisor64 from MathExtras instead of using our own. Thanks Hal!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211952 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -33,6 +33,7 @@
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/MathExtras.h"
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#include "llvm/Support/raw_ostream.h"
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#include <sstream>
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@ -67,17 +68,6 @@ static bool IsPTXVectorType(MVT VT) {
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}
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}
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static uint64_t GCD( int a, int b)
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{
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if (a < b) std::swap(a,b);
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while (b > 0) {
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uint64_t c = b;
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b = a % b;
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a = c;
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}
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return a;
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}
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/// ComputePTXValueVTs - For the given Type \p Ty, returns the set of primitive
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/// EVTs that compose it. Unlike ComputeValueVTs, this will break apart vectors
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/// into their primitive components.
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@ -718,7 +708,7 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
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InFlag = Chain.getValue(1);
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for (unsigned j = 0, je = vtparts.size(); j != je; ++j) {
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EVT elemtype = vtparts[j];
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unsigned ArgAlign = GCD(align, Offsets[j]);
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unsigned ArgAlign = GreatestCommonDivisor64(align, Offsets[j]);
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if (elemtype.isInteger() && (sz < 8))
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sz = 8;
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SDValue StVal = OutVals[OIdx];
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@ -943,7 +933,7 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
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for (unsigned j = 0, je = vtparts.size(); j != je; ++j) {
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EVT elemtype = vtparts[j];
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int curOffset = Offsets[j];
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unsigned PartAlign = GCD(ArgAlign, curOffset);
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unsigned PartAlign = GreatestCommonDivisor64(ArgAlign, curOffset);
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SDValue srcAddr =
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DAG.getNode(ISD::ADD, dl, getPointerTy(), OutVals[OIdx],
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DAG.getConstant(curOffset, getPointerTy()));
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@ -1204,7 +1194,7 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
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unsigned RetAlign = getArgumentAlignment(Callee, CS, retTy, 0);
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for (unsigned i = 0, e = Ins.size(); i != e; ++i) {
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unsigned sz = VTs[i].getSizeInBits();
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unsigned AlignI = GCD(RetAlign, Offsets[i]);
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unsigned AlignI = GreatestCommonDivisor64(RetAlign, Offsets[i]);
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bool needTruncate = sz < 8 ? true : false;
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if (VTs[i].isInteger() && (sz < 8))
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sz = 8;
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