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Add 8-bit and 16-bit specialized NEON targets.

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Like SSE4-8 and SSE4-16, these use 8-bit and 16-bit values for mask
elements, respectively, and thus should generate the best code when used
for computation with datatypes of those sizes.
This commit is contained in:
Matt Pharr
2013-07-29 16:14:58 -07:00
parent b6df447b55
commit ab3b633733
12 changed files with 1561 additions and 373 deletions
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28
builtins.cpp
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@@ -657,7 +657,9 @@ AddBitcodeToModule(const unsigned char *bitcode, int length,
// the values for an ARM target. This maybe won't cause problems
// in the generated code, since bulitins.c doesn't do anything too
// complex w.r.t. struct layouts, etc.
if (g->target->getISA() != Target::NEON)
if (g->target->getISA() != Target::NEON32 &&
g->target->getISA() != Target::NEON16 &&
g->target->getISA() != Target::NEON8)
#endif // !__arm__
{
Assert(bcTriple.getArch() == llvm::Triple::UnknownArch ||
@@ -820,12 +822,30 @@ DefineStdlib(SymbolTable *symbolTable, llvm::LLVMContext *ctx, llvm::Module *mod
// Next, add the target's custom implementations of the various needed
// builtin functions (e.g. __masked_store_32(), etc).
switch (g->target->getISA()) {
case Target::NEON: {
case Target::NEON8: {
if (runtime32) {
EXPORT_MODULE(builtins_bitcode_neon_32bit);
EXPORT_MODULE(builtins_bitcode_neon_8_32bit);
}
else {
EXPORT_MODULE(builtins_bitcode_neon_64bit);
EXPORT_MODULE(builtins_bitcode_neon_8_64bit);
}
break;
}
case Target::NEON16: {
if (runtime32) {
EXPORT_MODULE(builtins_bitcode_neon_16_32bit);
}
else {
EXPORT_MODULE(builtins_bitcode_neon_16_64bit);
}
break;
}
case Target::NEON32: {
if (runtime32) {
EXPORT_MODULE(builtins_bitcode_neon_32_32bit);
}
else {
EXPORT_MODULE(builtins_bitcode_neon_32_64bit);
}
break;
}