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BLAS: fix blas fptype for complex #2167

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Nov 16, 2024
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BLAS: fix blas fptype for complex #2167

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6 changes: 5 additions & 1 deletion enzyme/Enzyme/Utils.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -579,14 +579,18 @@ void ErrorIfRuntimeInactive(llvm::IRBuilder<> &B, llvm::Value *primal,
call->setDebugLoc(loc);
}

Type *BlasInfo::fpType(LLVMContext &ctx) const {
Type *BlasInfo::fpType(LLVMContext &ctx, bool to_scalar) const {
if (floatType == "d" || floatType == "D") {
return Type::getDoubleTy(ctx);
} else if (floatType == "s" || floatType == "S") {
return Type::getFloatTy(ctx);
} else if (floatType == "c" || floatType == "C") {
if (to_scalar)
return Type::getFloatTy(ctx);
return VectorType::get(Type::getFloatTy(ctx), 2, false);
} else if (floatType == "z" || floatType == "Z") {
if (to_scalar)
return Type::getDoubleTy(ctx);
return VectorType::get(Type::getDoubleTy(ctx), 2, false);
} else {
assert(false && "Unreachable");
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2 changes: 1 addition & 1 deletion enzyme/Enzyme/Utils.h
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Expand Up @@ -678,7 +678,7 @@ struct BlasInfo {
std::string function;
bool is64;

llvm::Type *fpType(llvm::LLVMContext &ctx) const;
llvm::Type *fpType(llvm::LLVMContext &ctx, bool to_scalar = false) const;
llvm::IntegerType *intType(llvm::LLVMContext &ctx) const;
};

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2 changes: 1 addition & 1 deletion enzyme/tools/enzyme-tblgen/blasTAUpdater.h
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Expand Up @@ -16,7 +16,7 @@ inline void emit_BLASTypes(raw_ostream &os) {
"\"cublas\" && StringRef(blas.suffix).contains(\"v2\");\n";

os << "TypeTree ttFloat;\n"
<< "llvm::Type *floatType = blas.fpType(call.getContext()); \n"
<< "llvm::Type *floatType = blas.fpType(call.getContext(), true); \n"
<< "if (byRefFloat) {\n"
<< " ttFloat.insert({-1},BaseType::Pointer);\n"
<< " ttFloat.insert({-1,0},floatType);\n"
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