================
@@ -2567,8 +2567,49 @@ CIRGenFunction::emitAArch64BuiltinExpr(unsigned
builtinID, const CallExpr *expr,
return builder.createBitcast(ops[0], ty);
}
case NEON::BI__builtin_neon_vfma_lane_v:
- case NEON::BI__builtin_neon_vfmaq_lane_v:
- case NEON::BI__builtin_neon_vfma_laneq_v:
+ cgm.errorNYI(expr->getSourceRange(),
+ std::string("unimplemented AArch64 builtin call: ") +
+ getContext().BuiltinInfo.getName(builtinID));
+ return mlir::Value{};
+ case NEON::BI__builtin_neon_vfmaq_lane_v: {
+ mlir::Value addend = builder.createBitcast(ops[0], ty);
+ mlir::Value multiplicand = builder.createBitcast(ops[1], ty);
+ cir::VectorType sourceTy =
+ cir::VectorType::get(ty.getElementType(), ty.getSize() / 2);
+ mlir::Value laneSource = builder.createBitcast(ops[2], sourceTy);
+ laneSource = emitNeonSplat(builder, loc, laneSource, ops[3], ty.getSize());
+
+ llvm::SmallVector<mlir::Value> fmaOps = {multiplicand, laneSource, addend};
+ return emitCallMaybeConstrainedBuiltin(builder, loc, "fma", ty, fmaOps);
+ }
+ case NEON::BI__builtin_neon_vfma_laneq_v: {
+ if (ty.getElementType() == cgm.doubleTy) {
----------------
banach-space wrote:
This sort-of arbitrary special-casing requires some comments, see below for a
reference:
https://github.com/llvm/llvm-project/blob/9346acd7806aee8a675089d5b5bcbd8ce98147e0/clang/lib/CodeGen/TargetBuiltins/ARM.cpp?plain=1#L6101
https://github.com/llvm/llvm-project/pull/197084
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