From: Pan Li <pan2...@intel.com>
This patch would like to support the rounding mode API for the
VFWCVT.X.F.V as the below samples.
* __riscv_vfwcvt_x_f_v_i64m2_rm
* __riscv_vfwcvt_x_f_v_i64m2_rm_m
Signed-off-by: Pan Li <pan2...@intel.com>
gcc/ChangeLog:
* config/riscv/riscv-vector-builtins-bases.cc
(class vfwcvt_x_frm): New class for frm.
(vfwcvt_x_frm_obj): New declaration.
(BASE): Ditto.
* config/riscv/riscv-vector-builtins-bases.h: Ditto.
* config/riscv/riscv-vector-builtins-functions.def
(vfwcvt_x_frm): New intrinsic function definition.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/base/float-point-wcvt-x.c: New test.
---
.../riscv/riscv-vector-builtins-bases.cc | 18 ++++++++++++
.../riscv/riscv-vector-builtins-bases.h | 1 +
.../riscv/riscv-vector-builtins-functions.def | 2 ++
.../riscv/rvv/base/float-point-wcvt-x.c | 29 +++++++++++++++++++
4 files changed, 50 insertions(+)
create mode 100644 gcc/testsuite/gcc.target/riscv/rvv/base/float-point-wcvt-x.c
diff --git a/gcc/config/riscv/riscv-vector-builtins-bases.cc
b/gcc/config/riscv/riscv-vector-builtins-bases.cc
index 3c2bc13b586..7bd72653b9c 100644
--- a/gcc/config/riscv/riscv-vector-builtins-bases.cc
+++ b/gcc/config/riscv/riscv-vector-builtins-bases.cc
@@ -695,6 +695,22 @@ public:
}
};
+/* Implements below instructions for frm
+ - vfwcvt_x
+*/
+template<int UNSPEC>
+class vfwcvt_x_frm : public function_base
+{
+public:
+ bool has_rounding_mode_operand_p () const override { return true; }
+
+ rtx expand (function_expander &e) const override
+ {
+ return e.use_exact_insn (
+ code_for_pred_widen_fcvt_x_f (UNSPEC, e.vector_mode ()));
+ }
+};
+
/* Implements vrsub. */
class vrsub : public function_base
{
@@ -2508,6 +2524,7 @@ static CONSTEXPR const vfcvt_rtz_x<UNSIGNED_FIX>
vfcvt_rtz_xu_obj;
static CONSTEXPR const vfcvt_f vfcvt_f_obj;
static CONSTEXPR const vfcvt_f_frm vfcvt_f_frm_obj;
static CONSTEXPR const vfwcvt_x<UNSPEC_VFCVT> vfwcvt_x_obj;
+static CONSTEXPR const vfwcvt_x_frm<UNSPEC_VFCVT> vfwcvt_x_frm_obj;
static CONSTEXPR const vfwcvt_x<UNSPEC_UNSIGNED_VFCVT> vfwcvt_xu_obj;
static CONSTEXPR const vfwcvt_rtz_x<FIX> vfwcvt_rtz_x_obj;
static CONSTEXPR const vfwcvt_rtz_x<UNSIGNED_FIX> vfwcvt_rtz_xu_obj;
@@ -2760,6 +2777,7 @@ BASE (vfcvt_rtz_xu)
BASE (vfcvt_f)
BASE (vfcvt_f_frm)
BASE (vfwcvt_x)
+BASE (vfwcvt_x_frm)
BASE (vfwcvt_xu)
BASE (vfwcvt_rtz_x)
BASE (vfwcvt_rtz_xu)
diff --git a/gcc/config/riscv/riscv-vector-builtins-bases.h
b/gcc/config/riscv/riscv-vector-builtins-bases.h
index 08452587180..dd711846cbe 100644
--- a/gcc/config/riscv/riscv-vector-builtins-bases.h
+++ b/gcc/config/riscv/riscv-vector-builtins-bases.h
@@ -213,6 +213,7 @@ extern const function_base *const vfcvt_rtz_xu;
extern const function_base *const vfcvt_f;
extern const function_base *const vfcvt_f_frm;
extern const function_base *const vfwcvt_x;
+extern const function_base *const vfwcvt_x_frm;
extern const function_base *const vfwcvt_xu;
extern const function_base *const vfwcvt_rtz_x;
extern const function_base *const vfwcvt_rtz_xu;
diff --git a/gcc/config/riscv/riscv-vector-builtins-functions.def
b/gcc/config/riscv/riscv-vector-builtins-functions.def
index 8dbcd946d11..4e6cc793447 100644
--- a/gcc/config/riscv/riscv-vector-builtins-functions.def
+++ b/gcc/config/riscv/riscv-vector-builtins-functions.def
@@ -459,6 +459,8 @@ DEF_RVV_FUNCTION (vfwcvt_f, alu, full_preds,
i_to_wf_x_v_ops)
DEF_RVV_FUNCTION (vfwcvt_f, alu, full_preds, u_to_wf_xu_v_ops)
DEF_RVV_FUNCTION (vfwcvt_f, alu, full_preds, f_to_wf_f_v_ops)
+DEF_RVV_FUNCTION (vfwcvt_x_frm, alu_frm, full_preds, f_to_wi_f_v_ops)
+
// 13.19. Narrowing Floating-Point/Integer Type-Convert Instructions
DEF_RVV_FUNCTION (vfncvt_x, narrow_alu, full_preds, f_to_ni_f_w_ops)
DEF_RVV_FUNCTION (vfncvt_xu, narrow_alu, full_preds, f_to_nu_f_w_ops)
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/base/float-point-wcvt-x.c
b/gcc/testsuite/gcc.target/riscv/rvv/base/float-point-wcvt-x.c
new file mode 100644
index 00000000000..8f67ec00966
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/base/float-point-wcvt-x.c
@@ -0,0 +1,29 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64 -O3 -Wno-psabi" } */
+
+#include "riscv_vector.h"
+
+vint64m2_t
+test_riscv_vfwcvt_x_f_v_i64m2_rm (vfloat32m1_t op1, size_t vl) {
+ return __riscv_vfwcvt_x_f_v_i64m2_rm (op1, 0, vl);
+}
+
+vint64m2_t
+test_vfwcvt_x_f_v_i64m2_rm_m (vbool32_t mask, vfloat32m1_t op1, size_t vl) {
+ return __riscv_vfwcvt_x_f_v_i64m2_rm_m (mask, op1, 1, vl);
+}
+
+vint64m2_t
+test_riscv_vfwcvt_x_f_v_i64m2 (vfloat32m1_t op1, size_t vl) {
+ return __riscv_vfwcvt_x_f_v_i64m2 (op1, vl);
+}
+
+vint64m2_t
+test_vfwcvt_x_f_v_i64m2_m (vbool32_t mask, vfloat32m1_t op1, size_t vl) {
+ return __riscv_vfwcvt_x_f_v_i64m2_m (mask, op1, vl);
+}
+
+/* { dg-final { scan-assembler-times {vfwcvt\.x\.f\.v\s+v[0-9]+,\s*v[0-9]+} 4
} } */
+/* { dg-final { scan-assembler-times {frrm\s+[axs][0-9]+} 2 } } */
+/* { dg-final { scan-assembler-times {fsrm\s+[axs][0-9]+} 2 } } */
+/* { dg-final { scan-assembler-times {fsrmi\s+[01234]} 2 } } */
--
2.34.1
