Committed, thanks Kito.

Pan

From: Kito Cheng <kito.ch...@sifive.com>
Sent: Wednesday, August 16, 2023 3:12 PM
To: Li, Pan2 <pan2...@intel.com>
Cc: gcc-patches@gcc.gnu.org; juzhe.zh...@rivai.ai; Wang, Yanzhang 
<yanzhang.w...@intel.com>
Subject: Re: [PATCH v2] RISC-V: Support RVV VFCVT.F.X.V and VFCVT.F.XU.V 
rounding mode intrinsic API

lgtm

On Wed, Aug 16, 2023 at 2:51 PM <pan2...@intel.com<mailto:pan2...@intel.com>> 
wrote:
From: Pan Li <pan2...@intel.com<mailto: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<mailto:pan2...@intel.com>>

gcc/ChangeLog:

        * config/riscv/riscv-vector-builtins-bases.cc (BASE): New declaration.
        * config/riscv/riscv-vector-builtins-bases.h: Ditto.
        * config/riscv/riscv-vector-builtins-functions.def
        (vfcvt_f_frm): New intrinsic function def.

gcc/testsuite/ChangeLog:

        * gcc.target/riscv/rvv/base/float-point-cvt-f.c: New test.
---
 .../riscv/riscv-vector-builtins-bases.cc      |  8 +++
 .../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, 61 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 421f4096db8..c78fa8e5b62 100644
--- a/gcc/config/riscv/riscv-vector-builtins-bases.cc
+++ b/gcc/config/riscv/riscv-vector-builtins-bases.cc
@@ -1694,9 +1694,15 @@ public:
   }
 };

+template<enum frm_op_type FRM_OP = NO_FRM>
 class vfcvt_f : public function_base
 {
 public:
+  bool has_rounding_mode_operand_p () const override
+  {
+    return FRM_OP == HAS_FRM;
+  }
+
   rtx expand (function_expander &e) const override
   {
     if (e.op_info->op == OP_TYPE_x_v)
@@ -2482,6 +2488,7 @@ static CONSTEXPR const vfcvt_x<UNSPEC_UNSIGNED_VFCVT, 
HAS_FRM> 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<HAS_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;
@@ -2733,6 +2740,7 @@ 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

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