RISC-V: Support RVV FP16 MISC vlmul ext intrinsic API

This patch support the intrinsic API of FP16 ZVFHMIN vlmul ext. Aka:

vfloat16*_t <==> vfloat16*_t.

From the user's perspective, it is reasonable to do some type convert
between vfloat16*_t and vfloat16*_t when only ZVFHMIN is enabled.

Signed-off-by: Pan Li <pan2.li@intel.com>

gcc/ChangeLog:

	* config/riscv/riscv-vector-builtins-types.def
	(vfloat16mf4_t): Add type to X2/X4/X8/X16/X32 vlmul ext ops.
	(vfloat16mf2_t): Ditto.
	(vfloat16m1_t): Ditto.
	(vfloat16m2_t): Ditto.
	(vfloat16m4_t): Ditto.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/rvv/base/zvfh-over-zvfhmin.c: Add new test cases.
	* gcc.target/riscv/rvv/base/zvfhmin-intrinsic.c: Add new test cases.

3 files changed, 79 insertions, 8 deletions

diff --git a/gcc/config/riscv/riscv-vector-builtins-types.def b/gcc/config/riscv/riscv-vector-builtins-types.def
index 589ea53..db8e61f 100644
--- a/gcc/config/riscv/riscv-vector-builtins-types.def
+++ b/gcc/config/riscv/riscv-vector-builtins-types.def
@@ -978,6 +978,11 @@ DEF_RVV_X2_VLMUL_EXT_OPS (vuint32m4_t, 0)
 DEF_RVV_X2_VLMUL_EXT_OPS (vuint64m1_t, RVV_REQUIRE_ELEN_64)
 DEF_RVV_X2_VLMUL_EXT_OPS (vuint64m2_t, RVV_REQUIRE_ELEN_64)
 DEF_RVV_X2_VLMUL_EXT_OPS (vuint64m4_t, RVV_REQUIRE_ELEN_64)
+DEF_RVV_X2_VLMUL_EXT_OPS (vfloat16mf4_t, RVV_REQUIRE_ELEN_FP_16 | RVV_REQUIRE_MIN_VLEN_64)
+DEF_RVV_X2_VLMUL_EXT_OPS (vfloat16mf2_t, RVV_REQUIRE_ELEN_FP_16)
+DEF_RVV_X2_VLMUL_EXT_OPS (vfloat16m1_t, RVV_REQUIRE_ELEN_FP_16)
+DEF_RVV_X2_VLMUL_EXT_OPS (vfloat16m2_t, RVV_REQUIRE_ELEN_FP_16)
+DEF_RVV_X2_VLMUL_EXT_OPS (vfloat16m4_t, RVV_REQUIRE_ELEN_FP_16)
 DEF_RVV_X2_VLMUL_EXT_OPS (vfloat32mf2_t, RVV_REQUIRE_ELEN_FP_32 | RVV_REQUIRE_MIN_VLEN_64)
 DEF_RVV_X2_VLMUL_EXT_OPS (vfloat32m1_t, RVV_REQUIRE_ELEN_FP_32)
 DEF_RVV_X2_VLMUL_EXT_OPS (vfloat32m2_t, RVV_REQUIRE_ELEN_FP_32)
@@ -1014,6 +1019,10 @@ DEF_RVV_X4_VLMUL_EXT_OPS (vuint32m1_t, 0)
 DEF_RVV_X4_VLMUL_EXT_OPS (vuint32m2_t, 0)
 DEF_RVV_X4_VLMUL_EXT_OPS (vuint64m1_t, RVV_REQUIRE_ELEN_64)
 DEF_RVV_X4_VLMUL_EXT_OPS (vuint64m2_t, RVV_REQUIRE_ELEN_64)
+DEF_RVV_X4_VLMUL_EXT_OPS (vfloat16mf4_t, RVV_REQUIRE_ELEN_FP_16 | RVV_REQUIRE_MIN_VLEN_64)
+DEF_RVV_X4_VLMUL_EXT_OPS (vfloat16mf2_t, RVV_REQUIRE_ELEN_FP_16)
+DEF_RVV_X4_VLMUL_EXT_OPS (vfloat16m1_t, RVV_REQUIRE_ELEN_FP_16)
+DEF_RVV_X4_VLMUL_EXT_OPS (vfloat16m2_t, RVV_REQUIRE_ELEN_FP_16)
 DEF_RVV_X4_VLMUL_EXT_OPS (vfloat32mf2_t, RVV_REQUIRE_ELEN_FP_32 | RVV_REQUIRE_MIN_VLEN_64)
 DEF_RVV_X4_VLMUL_EXT_OPS (vfloat32m1_t, RVV_REQUIRE_ELEN_FP_32)
 DEF_RVV_X4_VLMUL_EXT_OPS (vfloat32m2_t, RVV_REQUIRE_ELEN_FP_32)
@@ -1040,6 +1049,9 @@ DEF_RVV_X8_VLMUL_EXT_OPS (vuint16m1_t, 0)
 DEF_RVV_X8_VLMUL_EXT_OPS (vuint32mf2_t, RVV_REQUIRE_MIN_VLEN_64)
 DEF_RVV_X8_VLMUL_EXT_OPS (vuint32m1_t, 0)
 DEF_RVV_X8_VLMUL_EXT_OPS (vuint64m1_t, RVV_REQUIRE_ELEN_64)
+DEF_RVV_X8_VLMUL_EXT_OPS (vfloat16mf4_t, RVV_REQUIRE_ELEN_FP_16 | RVV_REQUIRE_MIN_VLEN_64)
+DEF_RVV_X8_VLMUL_EXT_OPS (vfloat16mf2_t, RVV_REQUIRE_ELEN_FP_16)
+DEF_RVV_X8_VLMUL_EXT_OPS (vfloat16m1_t, RVV_REQUIRE_ELEN_FP_16)
 DEF_RVV_X8_VLMUL_EXT_OPS (vfloat32mf2_t, RVV_REQUIRE_ELEN_FP_32 | RVV_REQUIRE_MIN_VLEN_64)
 DEF_RVV_X8_VLMUL_EXT_OPS (vfloat32m1_t, RVV_REQUIRE_ELEN_FP_32)
 DEF_RVV_X8_VLMUL_EXT_OPS (vfloat64m1_t, RVV_REQUIRE_ELEN_FP_64)
@@ -1056,6 +1068,8 @@ DEF_RVV_X16_VLMUL_EXT_OPS (vuint8mf2_t, 0)
 DEF_RVV_X16_VLMUL_EXT_OPS (vuint16mf4_t, RVV_REQUIRE_MIN_VLEN_64)
 DEF_RVV_X16_VLMUL_EXT_OPS (vuint16mf2_t, 0)
 DEF_RVV_X16_VLMUL_EXT_OPS (vuint32mf2_t, RVV_REQUIRE_MIN_VLEN_64)
+DEF_RVV_X16_VLMUL_EXT_OPS (vfloat16mf4_t, RVV_REQUIRE_ELEN_FP_16 | RVV_REQUIRE_MIN_VLEN_64)
+DEF_RVV_X16_VLMUL_EXT_OPS (vfloat16mf2_t, RVV_REQUIRE_ELEN_FP_16)
 DEF_RVV_X16_VLMUL_EXT_OPS (vfloat32mf2_t, RVV_REQUIRE_ELEN_FP_32 | RVV_REQUIRE_MIN_VLEN_64)
 
 DEF_RVV_X32_VLMUL_EXT_OPS (vint8mf8_t, RVV_REQUIRE_MIN_VLEN_64)
@@ -1064,6 +1078,7 @@ DEF_RVV_X32_VLMUL_EXT_OPS (vint16mf4_t, RVV_REQUIRE_MIN_VLEN_64)
 DEF_RVV_X32_VLMUL_EXT_OPS (vuint8mf8_t, RVV_REQUIRE_MIN_VLEN_64)
 DEF_RVV_X32_VLMUL_EXT_OPS (vuint8mf4_t, 0)
 DEF_RVV_X32_VLMUL_EXT_OPS (vuint16mf4_t, RVV_REQUIRE_MIN_VLEN_64)
+DEF_RVV_X32_VLMUL_EXT_OPS (vfloat16mf4_t, RVV_REQUIRE_ELEN_FP_16 | RVV_REQUIRE_MIN_VLEN_64)
 
 DEF_RVV_X64_VLMUL_EXT_OPS (vint8mf8_t, RVV_REQUIRE_MIN_VLEN_64)
 DEF_RVV_X64_VLMUL_EXT_OPS (vuint8mf8_t, RVV_REQUIRE_MIN_VLEN_64)
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/base/zvfh-over-zvfhmin.c b/gcc/testsuite/gcc.target/riscv/rvv/base/zvfh-over-zvfhmin.c
index d5bcdd5..ff9e015 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/base/zvfh-over-zvfhmin.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/base/zvfh-over-zvfhmin.c
@@ -37,13 +37,23 @@ vuint16m8_t test_vreinterpret_v_f16m8_u16m8(vfloat16m8_t src) {
   return __riscv_vreinterpret_v_f16m8_u16m8(src);
 }
 
+vfloat16mf2_t test_vlmul_ext_v_f16mf4_f16mf2(vfloat16mf4_t op1) {
+  return __riscv_vlmul_ext_v_f16mf4_f16mf2(op1);
+}
+
+vfloat16m8_t test_vlmul_ext_v_f16mf4_f16m8(vfloat16mf4_t op1) {
+  return __riscv_vlmul_ext_v_f16mf4_f16m8(op1);
+}
+
 /* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e16,\s*mf4,\s*t[au],\s*m[au]} 3 } } */
 /* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e16,\s*m4,\s*t[au],\s*m[au]} 2 } } */
 /* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e16,\s*m8,\s*t[au],\s*m[au]} 1 } } */
-/* { dg-final { scan-assembler-times {vsetvli\s+[a-x0-9]+,\s*zero,\s*e16,\s*mf4,\s*t[au],\s*m[au]} 4 } } */
+/* { dg-final { scan-assembler-times {vsetvli\s+[a-x0-9]+,\s*zero,\s*e16,\s*mf4,\s*t[au],\s*m[au]} 6 } } */
+/* { dg-final { scan-assembler-times {vsetvli\s+[a-x0-9]+,\s*zero,\s*e16,\s*mf2,\s*t[au],\s*m[au]} 1 } } */
+/* { dg-final { scan-assembler-times {vsetvli\s+[a-x0-9]+,\s*zero,\s*e16,\s*m8,\s*t[au],\s*m[au]} 1 } } */
 /* { dg-final { scan-assembler-times {vfwcvt\.f\.f\.v\s+v[0-9]+,\s*v[0-9]+} 2 } } */
 /* { dg-final { scan-assembler-times {vfncvt\.f\.f\.w\s+v[0-9]+,\s*v[0-9]+} 2 } } */
-/* { dg-final { scan-assembler-times {vle16\.v\s+v[0-9]+,\s*0\([0-9ax]+\)} 4 } } */
-/* { dg-final { scan-assembler-times {vse16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 3 } } */
+/* { dg-final { scan-assembler-times {vle16\.v\s+v[0-9]+,\s*0\([0-9ax]+\)} 6 } } */
+/* { dg-final { scan-assembler-times {vse16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 4 } } */
 /* { dg-final { scan-assembler-times {vl8re16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 1 } } */
-/* { dg-final { scan-assembler-times {vs8r\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 3 } } */
+/* { dg-final { scan-assembler-times {vs8r\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 4 } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/base/zvfhmin-intrinsic.c b/gcc/testsuite/gcc.target/riscv/rvv/base/zvfhmin-intrinsic.c
index e56b275..68720e6 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/base/zvfhmin-intrinsic.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/base/zvfhmin-intrinsic.c
@@ -85,16 +85,62 @@ vuint16m8_t test_vreinterpret_v_f16m8_u16m8(vfloat16m8_t src) {
   return __riscv_vreinterpret_v_f16m8_u16m8(src);
 }
 
+vfloat16mf2_t test_vlmul_ext_v_f16mf4_f16mf2(vfloat16mf4_t op1) {
+  return __riscv_vlmul_ext_v_f16mf4_f16mf2(op1);
+}
+
+vfloat16m8_t test_vlmul_ext_v_f16m4_f16m8(vfloat16m4_t op1) {
+  return __riscv_vlmul_ext_v_f16m4_f16m8(op1);
+}
+
+vfloat16m1_t test_vlmul_ext_v_f16mf4_f16m1(vfloat16mf4_t op1) {
+  return __riscv_vlmul_ext_v_f16mf4_f16m1(op1);
+}
+
+vfloat16m8_t test_vlmul_ext_v_f16m2_f16m8(vfloat16m2_t op1) {
+  return __riscv_vlmul_ext_v_f16m2_f16m8(op1);
+}
+
+vfloat16m2_t test_vlmul_ext_v_f16mf4_f16m2(vfloat16mf4_t op1) {
+  return __riscv_vlmul_ext_v_f16mf4_f16m2(op1);
+}
+
+vfloat16m8_t test_vlmul_ext_v_f16m1_f16m8(vfloat16m1_t op1) {
+  return __riscv_vlmul_ext_v_f16m1_f16m8(op1);
+}
+
+vfloat16m4_t test_vlmul_ext_v_f16mf4_f16m4(vfloat16mf4_t op1) {
+  return __riscv_vlmul_ext_v_f16mf4_f16m4(op1);
+}
+
+vfloat16m8_t test_vlmul_ext_v_f16mf2_f16m8(vfloat16mf2_t op1) {
+  return __riscv_vlmul_ext_v_f16mf2_f16m8(op1);
+}
+
+vfloat16m8_t test_vlmul_ext_v_f16mf4_f16m8(vfloat16mf4_t op1) {
+  return __riscv_vlmul_ext_v_f16mf4_f16m8(op1);
+}
+
 /* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e16,\s*mf4,\s*t[au],\s*m[au]} 3 } } */
 /* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e16,\s*mf2,\s*t[au],\s*m[au]} 2 } } */
 /* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e16,\s*m1,\s*t[au],\s*m[au]} 2 } } */
 /* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e16,\s*m2,\s*t[au],\s*m[au]} 2 } } */
 /* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e16,\s*m4,\s*t[au],\s*m[au]} 2 } } */
 /* { dg-final { scan-assembler-times {vsetvli\s+zero,\s*[a-x0-9]+,\s*e16,\s*m8,\s*t[au],\s*m[au]} 1 } } */
-/* { dg-final { scan-assembler-times {vsetvli\s+[a-x0-9]+,\s*zero,\s*e16,\s*mf4,\s*t[au],\s*m[au]} 7 } } */
+/* { dg-final { scan-assembler-times {vsetvli\s+[a-x0-9]+,\s*zero,\s*e16,\s*mf4,\s*t[au],\s*m[au]} 12 } } */
+/* { dg-final { scan-assembler-times {vsetvli\s+[a-x0-9]+,\s*zero,\s*e16,\s*mf2,\s*t[au],\s*m[au]} 4 } } */
+/* { dg-final { scan-assembler-times {vsetvli\s+[a-x0-9]+,\s*zero,\s*e16,\s*m2,\s*t[au],\s*m[au]} 1 } } */
+/* { dg-final { scan-assembler-times {vsetvli\s+[a-x0-9]+,\s*zero,\s*e16,\s*m4,\s*t[au],\s*m[au]} 1 } } */
+/* { dg-final { scan-assembler-times {vsetvli\s+[a-x0-9]+,\s*zero,\s*e16,\s*m8,\s*t[au],\s*m[au]} 5 } } */
 /* { dg-final { scan-assembler-times {vfwcvt\.f\.f\.v\s+v[0-9]+,\s*v[0-9]+} 5 } } */
 /* { dg-final { scan-assembler-times {vfncvt\.f\.f\.w\s+v[0-9]+,\s*v[0-9]+} 5 } } */
-/* { dg-final { scan-assembler-times {vle16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 8 } } */
-/* { dg-final { scan-assembler-times {vse16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 7 } } */
+/* { dg-final { scan-assembler-times {vle16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 14 } } */
+/* { dg-final { scan-assembler-times {vse16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 8 } } */
+/* { dg-final { scan-assembler-times {vl1re16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 2 } } */
+/* { dg-final { scan-assembler-times {vl2re16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 2 } } */
 /* { dg-final { scan-assembler-times {vl8re16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 4 } } */
-/* { dg-final { scan-assembler-times {vs8r\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 6 } } */
+/* { dg-final { scan-assembler-times {vl4re16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 2 } } */
+/* { dg-final { scan-assembler-times {vs1r\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 3 } } */
+/* { dg-final { scan-assembler-times {vs2r\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 3 } } */
+/* { dg-final { scan-assembler-times {vs4r\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 3 } } */
+/* { dg-final { scan-assembler-times {vs8r\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 11 } } */