From: Pan Li <pan2...@intel.com>
This patch would like to support the rounding mode API for the
VFCVT.F.X.V and VFCVT.F.XU.V as the below samples.
* __riscv_vfcvt_f_x_v_f32m1_rm
* __riscv_vfcvt_f_x_v_f32m1_rm_m
* __riscv_vfcvt_f_xu_v_f32m1_rm
* __riscv_vfcvt_f_xu_v_f32m1_rm_m
Signed-off-by: Pan Li <pan2...@intel.com>
gcc/ChangeLog:
* config/riscv/riscv-vector-builtins-bases.cc
(class vfcvt_f_frm): New class for frm.
(vfcvt_f_frm_obj): New declaration.
(BASE): Ditto.
* config/riscv/riscv-vector-builtins-bases.h: Ditto.
* config/riscv/riscv-vector-builtins-functions.def
(vfcvt_f_frm): New intrinsic function definition.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/base/float-point-cvt-f.c: New test.
---
.../riscv/riscv-vector-builtins-bases.cc | 22 ++++++++
.../riscv/riscv-vector-builtins-bases.h | 1 +
.../riscv/riscv-vector-builtins-functions.def | 2 +
.../riscv/rvv/base/float-point-cvt-f.c | 50 +++++++++++++++++++
4 files changed, 75 insertions(+)
create mode 100644 gcc/testsuite/gcc.target/riscv/rvv/base/float-point-cvt-f.c
diff --git a/gcc/config/riscv/riscv-vector-builtins-bases.cc
b/gcc/config/riscv/riscv-vector-builtins-bases.cc
index 8eb89a05580..3c2bc13b586 100644
--- a/gcc/config/riscv/riscv-vector-builtins-bases.cc
+++ b/gcc/config/riscv/riscv-vector-builtins-bases.cc
@@ -675,6 +675,26 @@ public:
}
};
+/* Implements below instructions for frm
+ - vfcvt_f
+*/
+class vfcvt_f_frm : public function_base
+{
+public:
+ bool has_rounding_mode_operand_p () const override { return true; }
+
+ rtx expand (function_expander &e) const override
+ {
+ if (e.op_info->op == OP_TYPE_x_v)
+ return e.use_exact_insn (code_for_pred (FLOAT, e.vector_mode ()));
+ if (e.op_info->op == OP_TYPE_xu_v)
+ return e.use_exact_insn (
+ code_for_pred (UNSIGNED_FLOAT, e.vector_mode ()));
+
+ gcc_unreachable ();
+ }
+};
+
/* Implements vrsub. */
class vrsub : public function_base
{
@@ -2486,6 +2506,7 @@ static CONSTEXPR const vfcvt_x_frm<UNSPEC_UNSIGNED_VFCVT>
vfcvt_xu_frm_obj;
static CONSTEXPR const vfcvt_rtz_x<FIX> vfcvt_rtz_x_obj;
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<UNSPEC_UNSIGNED_VFCVT> vfwcvt_xu_obj;
static CONSTEXPR const vfwcvt_rtz_x<FIX> vfwcvt_rtz_x_obj;
@@ -2737,6 +2758,7 @@ BASE (vfcvt_xu_frm)
BASE (vfcvt_rtz_x)
BASE (vfcvt_rtz_xu)
BASE (vfcvt_f)
+BASE (vfcvt_f_frm)
BASE (vfwcvt_x)
BASE (vfwcvt_xu)
BASE (vfwcvt_rtz_x)
diff --git a/gcc/config/riscv/riscv-vector-builtins-bases.h
b/gcc/config/riscv/riscv-vector-builtins-bases.h
index 98b61655692..08452587180 100644
--- a/gcc/config/riscv/riscv-vector-builtins-bases.h
+++ b/gcc/config/riscv/riscv-vector-builtins-bases.h
@@ -211,6 +211,7 @@ extern const function_base *const vfcvt_xu_frm;
extern const function_base *const vfcvt_rtz_x;
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_xu;
extern const function_base *const vfwcvt_rtz_x;
diff --git a/gcc/config/riscv/riscv-vector-builtins-functions.def
b/gcc/config/riscv/riscv-vector-builtins-functions.def
index 613bbe7a855..8dbcd946d11 100644
--- a/gcc/config/riscv/riscv-vector-builtins-functions.def
+++ b/gcc/config/riscv/riscv-vector-builtins-functions.def
@@ -447,6 +447,8 @@ DEF_RVV_FUNCTION (vfcvt_f, alu, full_preds, u_to_f_xu_v_ops)
DEF_RVV_FUNCTION (vfcvt_x_frm, alu_frm, full_preds, f_to_i_f_v_ops)
DEF_RVV_FUNCTION (vfcvt_xu_frm, alu_frm, full_preds, f_to_u_f_v_ops)
+DEF_RVV_FUNCTION (vfcvt_f_frm, alu_frm, full_preds, i_to_f_x_v_ops)
+DEF_RVV_FUNCTION (vfcvt_f_frm, alu_frm, full_preds, u_to_f_xu_v_ops)
// 13.18. Widening Floating-Point/Integer Type-Convert Instructions
DEF_RVV_FUNCTION (vfwcvt_x, alu, full_preds, f_to_wi_f_v_ops)
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/base/float-point-cvt-f.c
b/gcc/testsuite/gcc.target/riscv/rvv/base/float-point-cvt-f.c
new file mode 100644
index 00000000000..424a38ede13
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/base/float-point-cvt-f.c
@@ -0,0 +1,50 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64 -O3 -Wno-psabi" } */
+
+#include "riscv_vector.h"
+
+vfloat32m1_t
+test_riscv_vfcvt_f_x_v_f32m1_rm (vint32m1_t op1, size_t vl) {
+ return __riscv_vfcvt_f_x_v_f32m1_rm (op1, 0, vl);
+}
+
+vfloat32m1_t
+test_riscv_vfcvt_f_x_v_f32m1_rm_m (vbool32_t mask, vint32m1_t op1, size_t vl) {
+ return __riscv_vfcvt_f_x_v_f32m1_rm_m (mask, op1, 0, vl);
+}
+
+vfloat32m1_t
+test_riscv_vfcvt_f_xu_v_f32m1_rm (vuint32m1_t op1, size_t vl) {
+ return __riscv_vfcvt_f_xu_v_f32m1_rm (op1, 0, vl);
+}
+
+vfloat32m1_t
+test_riscv_vfcvt_f_xu_v_f32m1_rm_m (vbool32_t mask, vuint32m1_t op1,
+ size_t vl) {
+ return __riscv_vfcvt_f_xu_v_f32m1_rm_m (mask, op1, 0, vl);
+}
+
+vfloat32m1_t
+test_riscv_vfcvt_f_x_v_f32m1 (vint32m1_t op1, size_t vl) {
+ return __riscv_vfcvt_f_x_v_f32m1 (op1, vl);
+}
+
+vfloat32m1_t
+test_vfcvt_f_x_v_f32m1_m (vbool32_t mask, vint32m1_t op1, size_t vl) {
+ return __riscv_vfcvt_f_x_v_f32m1_m (mask, op1, vl);
+}
+
+vfloat32m1_t
+test_riscv_vfcvt_f_xu_v_f32m1 (vuint32m1_t op1, size_t vl) {
+ return __riscv_vfcvt_f_xu_v_f32m1 (op1, vl);
+}
+
+vfloat32m1_t
+test_vfcvt_f_x_vu_f32m1_m (vbool32_t mask, vuint32m1_t op1, size_t vl) {
+ return __riscv_vfcvt_f_xu_v_f32m1_m (mask, op1, vl);
+}
+
+/* { dg-final { scan-assembler-times {vfcvt\.f\.x[u]?\.v\s+v[0-9]+,\s*v[0-9]+}
8 } } */
+/* { dg-final { scan-assembler-times {frrm\s+[axs][0-9]+} 4 } } */
+/* { dg-final { scan-assembler-times {fsrm\s+[axs][0-9]+} 4 } } */
+/* { dg-final { scan-assembler-times {fsrmi\s+[01234]} 4 } } */
--
2.34.1
