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[NVPTX] Use GreatestCommonDivisor64 from MathExtras instead of using our own. Thanks Hal!

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211952 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Justin Holewinski 2014-06-27 19:36:25 +00:00
parent 704fa86de5
commit 8474c35bd8
1 changed files with 4 additions and 14 deletions
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18
lib/Target/NVPTX/NVPTXISelLowering.cpp
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@ -33,6 +33,7 @@
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include <sstream>
@ -67,17 +68,6 @@ static bool IsPTXVectorType(MVT VT) {
}
}
static uint64_t GCD( int a, int b)
{
if (a < b) std::swap(a,b);
while (b > 0) {
uint64_t c = b;
b = a % b;
a = c;
}
return a;
}
/// ComputePTXValueVTs - For the given Type \p Ty, returns the set of primitive
/// EVTs that compose it. Unlike ComputeValueVTs, this will break apart vectors
/// into their primitive components.
@ -718,7 +708,7 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
InFlag = Chain.getValue(1);
for (unsigned j = 0, je = vtparts.size(); j != je; ++j) {
EVT elemtype = vtparts[j];
unsigned ArgAlign = GCD(align, Offsets[j]);
unsigned ArgAlign = GreatestCommonDivisor64(align, Offsets[j]);
if (elemtype.isInteger() && (sz < 8))
sz = 8;
SDValue StVal = OutVals[OIdx];
@ -943,7 +933,7 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
for (unsigned j = 0, je = vtparts.size(); j != je; ++j) {
EVT elemtype = vtparts[j];
int curOffset = Offsets[j];
unsigned PartAlign = GCD(ArgAlign, curOffset);
unsigned PartAlign = GreatestCommonDivisor64(ArgAlign, curOffset);
SDValue srcAddr =
DAG.getNode(ISD::ADD, dl, getPointerTy(), OutVals[OIdx],
DAG.getConstant(curOffset, getPointerTy()));
@ -1204,7 +1194,7 @@ SDValue NVPTXTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
unsigned RetAlign = getArgumentAlignment(Callee, CS, retTy, 0);
for (unsigned i = 0, e = Ins.size(); i != e; ++i) {
unsigned sz = VTs[i].getSizeInBits();
unsigned AlignI = GCD(RetAlign, Offsets[i]);
unsigned AlignI = GreatestCommonDivisor64(RetAlign, Offsets[i]);
bool needTruncate = sz < 8 ? true : false;
if (VTs[i].isInteger() && (sz < 8))
sz = 8;