[PATCH 02/07] RISC-V: Add auto-vectorization support

[PATCH 02/07] RISC-V: Add auto-vectorization support

[Michael Collison]

This patch adds foundational support by making two functions that handle 
predication policies visibly globally.

gcc/ChangeLog:

     * config/riscv/riscv-vector-builtins.cc (get_tail_policy_for_pred):
     Remove static declaration to to make externally visible.
     (get_mask_policy_for_pred): Ditto.
     * config/riscv/riscv-vector-builtins.h (get_tail_policy_for_pred):
     New external declaration.
     (get_mask_policy_for_pred): Ditto.

---
  gcc/config/riscv/riscv-vector-builtins.cc | 4 ++--
  gcc/config/riscv/riscv-vector-builtins.h  | 2 ++
  2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/gcc/config/riscv/riscv-vector-builtins.cc 
b/gcc/config/riscv/riscv-vector-builtins.cc
index 2e92ece3b64..90fc73a5bcf 100644
--- a/gcc/config/riscv/riscv-vector-builtins.cc
+++ b/gcc/config/riscv/riscv-vector-builtins.cc
@@ -1850,7 +1850,7 @@ use_real_merge_p (enum predication_type_index pred)

  /* Get TAIL policy for predication. If predication indicates TU, 
return the TU.
     Otherwise, return the prefer default configuration.  */
-static rtx
+rtx
  get_tail_policy_for_pred (enum predication_type_index pred)
  {
    if (pred == PRED_TYPE_tu || pred == PRED_TYPE_tum || pred == 
PRED_TYPE_tumu)
@@ -1860,7 +1860,7 @@ get_tail_policy_for_pred (enum 
predication_type_index pred)

  /* Get MASK policy for predication. If predication indicates MU, 
return the MU.
     Otherwise, return the prefer default configuration.  */
-static rtx
+rtx
  get_mask_policy_for_pred (enum predication_type_index pred)
  {
    if (pred == PRED_TYPE_tumu || pred == PRED_TYPE_mu)
diff --git a/gcc/config/riscv/riscv-vector-builtins.h 
b/gcc/config/riscv/riscv-vector-builtins.h
index ede08c6a480..135e2463b1e 100644
--- a/gcc/config/riscv/riscv-vector-builtins.h
+++ b/gcc/config/riscv/riscv-vector-builtins.h
@@ -433,6 +433,8 @@ extern const char *const operand_suffixes[NUM_OP_TYPES];
  extern const rvv_builtin_suffixes type_suffixes[NUM_VECTOR_TYPES + 1];
  extern const char *const predication_suffixes[NUM_PRED_TYPES];
  extern rvv_builtin_types_t builtin_types[NUM_VECTOR_TYPES + 1];
+extern rtx get_tail_policy_for_pred (enum predication_type_index pred);
+extern rtx get_mask_policy_for_pred (enum predication_type_index pred);

  inline bool
  function_instance::operator!= (const function_instance &other) const
-- 
2.34.1