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Fix largest input register calculation

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This commit is contained in:
Joel Fuentes
2025-10-27 18:31:35 +00:00
committed by igcbot
parent 92d4567325
commit 901057c722
1 changed files with 13 additions and 7 deletions
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20
visa/G4_Kernel.cpp
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@ -984,16 +984,22 @@ std::string G4_Kernel::getDebugSrcLine(const std::string &fileName,
return lines[srcLine - 1];
}
// Among all the input registers, get the largest one.
// This accounts for input arguments as well as pseudo
// input declarations.
unsigned G4_Kernel::getLargestInputRegister() {
unsigned maxRegNum = 0;
const unsigned inputCount = fg.builder->getInputCount();
unsigned regNum = 0;
if (inputCount) {
const input_info_t *ii = fg.builder->getInputArg(inputCount - 1);
regNum = (ii->offset + ii->dcl->getByteSize()) /
fg.builder->numEltPerGRF<Type_UB>();
// Iterate over all the inputs because they can be defined
// in any order by the programmer.
for (unsigned i = 0; i < inputCount; i++) {
const input_info_t *ii = fg.builder->getInputArg(i);
unsigned reg = (ii->offset + ii->dcl->getByteSize()) /
fg.builder->numEltPerGRF<Type_UB>();
if (reg > maxRegNum)
maxRegNum = reg;
}
return regNum;
return maxRegNum;
}
void G4_Kernel::setKernelParameters(unsigned newGRF) {