RISC-V: Add vadc/vsbc C/C++ API support

gcc/ChangeLog:

	* config/riscv/riscv-protos.h (simm5_p): Add vadc/vsbc support.
	* config/riscv/riscv-v.cc (simm32_p): Ditto.
	* config/riscv/riscv-vector-builtins-bases.cc (class vadc): New class.
	(class vsbc): Ditto.
	(BASE): Ditto.
	* config/riscv/riscv-vector-builtins-bases.h: Ditto.
	* config/riscv/riscv-vector-builtins-functions.def (vadc): Ditto.
	(vsbc): Ditto.
	* config/riscv/riscv-vector-builtins-shapes.cc
	(struct no_mask_policy_def): Ditto.
	(SHAPE): Ditto.
	* config/riscv/riscv-vector-builtins-shapes.h: Ditto.
	* config/riscv/riscv-vector-builtins.cc
	(rvv_arg_type_info::get_base_vector_type): Add vadc/vsbc support.
	(rvv_arg_type_info::get_tree_type): Ditto.
	(function_expander::use_exact_insn): Ditto.
	* config/riscv/riscv-vector-builtins.h (enum rvv_base_type): Ditto.
	(function_base::use_mask_predication_p): New function.
	* config/riscv/vector-iterators.md: New iterator.
	* config/riscv/vector.md (@pred_adc<mode>): New pattern.
	(@pred_sbc<mode>): Ditto.
	(@pred_adc<mode>_scalar): Ditto.
	(@pred_sbc<mode>_scalar): Ditto.
	(*pred_adc<mode>_scalar): Ditto.
	(*pred_adc<mode>_extended_scalar): Ditto.
	(*pred_sbc<mode>_scalar): Ditto.
	(*pred_sbc<mode>_extended_scalar): Ditto.

1 files changed, 12 insertions, 0 deletions

diff --git a/gcc/config/riscv/riscv-vector-builtins.h b/gcc/config/riscv/riscv-vector-builtins.h
index d033a2e..4f78c29 100644
--- a/gcc/config/riscv/riscv-vector-builtins.h
+++ b/gcc/config/riscv/riscv-vector-builtins.h
@@ -140,6 +140,7 @@ enum rvv_base_type
 {
   RVV_BASE_vector,
   RVV_BASE_scalar,
+  RVV_BASE_mask,
   RVV_BASE_unsigned_vector,
   RVV_BASE_unsigned_scalar,
   RVV_BASE_vector_ptr,
@@ -384,6 +385,9 @@ public:
   /* Return true if intrinsic can be overloaded.  */
   virtual bool can_be_overloaded_p (enum predication_type_index) const;
 
+  /* Return true if intrinsics use mask predication.  */
+  virtual bool use_mask_predication_p () const;
+
   /* Expand the given call into rtl.  Return the result of the function,
      or an arbitrary value if the function doesn't return a result.  */
   virtual rtx expand (function_expander &) const = 0;
@@ -509,6 +513,14 @@ function_base::apply_mask_policy_p () const
   return true;
 }
 
+/* We choose to return true by default since most of the intrinsics use
+   mask predication.  */
+inline bool
+function_base::use_mask_predication_p () const
+{
+  return true;
+}
+
 /* Since most of intrinsics can be overloaded, we set it true by default.  */
 inline bool
 function_base::can_be_overloaded_p (enum predication_type_index) const