RISC-V: Add test cases for RVV FP16 undefined and vlmul trunc

This patch would like to add more tests for RVV FP16 undef and vlmul
trunc, aka

__riscv_vundefined_f16*();
__riscv_vlmul_trunc_v_f16*_f16*();

From the user's perspective, it is reasonable to do above operation
when only ZVFHMIN is enabled. This patch would like to add new test
cases to make sure the RVV FP16 vreinterpret works well as expected.

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

gcc/testsuite/ChangeLog:

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

2 files changed, 78 insertions, 16 deletions

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 ff9e015..c3ed419 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
@@ -45,15 +45,33 @@ vfloat16m8_t test_vlmul_ext_v_f16mf4_f16m8(vfloat16mf4_t op1) {
   return __riscv_vlmul_ext_v_f16mf4_f16m8(op1);
 }
 
+vfloat16mf4_t test_vlmul_trunc_v_f16mf2_f16mf4(vfloat16mf2_t op1) {
+  return __riscv_vlmul_trunc_v_f16mf2_f16mf4(op1);
+}
+
+vfloat16m4_t test_vlmul_trunc_v_f16m8_f16m4(vfloat16m8_t op1) {
+  return __riscv_vlmul_trunc_v_f16m8_f16m4(op1);
+}
+
+vfloat16mf4_t test_vundefined_f16mf4() {
+  return __riscv_vundefined_f16mf4();
+}
+
+vfloat16m8_t test_vundefined_f16m8() {
+  return __riscv_vundefined_f16m8();
+}
+
 /* { 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]} 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*mf4,\s*t[au],\s*m[au]} 8 } } */
+/* { dg-final { scan-assembler-times {vsetvli\s+[a-x0-9]+,\s*zero,\s*e16,\s*mf2,\s*t[au],\s*m[au]} 2 } } */
 /* { 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\([0-9ax]+\)} 6 } } */
-/* { dg-final { scan-assembler-times {vse16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 4 } } */
+/* { dg-final { scan-assembler-times {vle16\.v\s+v[0-9]+,\s*0\([0-9ax]+\)} 7 } } */
+/* { dg-final { scan-assembler-times {vse16\.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\([a-x][0-9]+\)} 1 } } */
 /* { 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\([a-x][0-9]+\)} 4 } } */
+/* { dg-final { scan-assembler-times {vs4r\.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\([a-x][0-9]+\)} 5 } } */
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 68720e6..8d39a2e 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/base/zvfhmin-intrinsic.c
+++ b/gcc/testsuite/gcc.target/riscv/rvv/base/zvfhmin-intrinsic.c
@@ -121,26 +121,70 @@ vfloat16m8_t test_vlmul_ext_v_f16mf4_f16m8(vfloat16mf4_t op1) {
   return __riscv_vlmul_ext_v_f16mf4_f16m8(op1);
 }
 
+vfloat16mf4_t test_vlmul_trunc_v_f16mf2_f16mf4(vfloat16mf2_t op1) {
+  return __riscv_vlmul_trunc_v_f16mf2_f16mf4(op1);
+}
+
+vfloat16mf4_t test_vlmul_trunc_v_f16m1_f16mf4(vfloat16m1_t op1) {
+  return __riscv_vlmul_trunc_v_f16m1_f16mf4(op1);
+}
+
+vfloat16mf2_t test_vlmul_trunc_v_f16m1_f16mf2(vfloat16m1_t op1) {
+  return __riscv_vlmul_trunc_v_f16m1_f16mf2(op1);
+}
+
+vfloat16mf4_t test_vlmul_trunc_v_f16m2_f16mf4(vfloat16m2_t op1) {
+  return __riscv_vlmul_trunc_v_f16m2_f16mf4(op1);
+}
+
+vfloat16m1_t test_vlmul_trunc_v_f16m2_f16m1(vfloat16m2_t op1) {
+  return __riscv_vlmul_trunc_v_f16m2_f16m1(op1);
+}
+
+vfloat16mf4_t test_vlmul_trunc_v_f16m4_f16mf4(vfloat16m4_t op1) {
+  return __riscv_vlmul_trunc_v_f16m4_f16mf4(op1);
+}
+
+vfloat16m2_t test_vlmul_trunc_v_f16m4_f16m2(vfloat16m4_t op1) {
+  return __riscv_vlmul_trunc_v_f16m4_f16m2(op1);
+}
+
+vfloat16mf4_t test_vlmul_trunc_v_f16m8_f16mf4(vfloat16m8_t op1) {
+  return __riscv_vlmul_trunc_v_f16m8_f16mf4(op1);
+}
+
+vfloat16m4_t test_vlmul_trunc_v_f16m8_f16m4(vfloat16m8_t op1) {
+  return __riscv_vlmul_trunc_v_f16m8_f16m4(op1);
+}
+
+vfloat16mf4_t test_vundefined_f16mf4() {
+  return __riscv_vundefined_f16mf4();
+}
+
+vfloat16m8_t test_vundefined_f16m8() {
+  return __riscv_vundefined_f16m8();
+}
+
 /* { 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]} 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*mf4,\s*t[au],\s*m[au]} 18 } } */
+/* { dg-final { scan-assembler-times {vsetvli\s+[a-x0-9]+,\s*zero,\s*e16,\s*mf2,\s*t[au],\s*m[au]} 6 } } */
 /* { 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\([a-x][0-9]+\)} 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 {vle16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 20 } } */
+/* { dg-final { scan-assembler-times {vse16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 15 } } */
+/* { dg-final { scan-assembler-times {vl1re16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 3 } } */
+/* { dg-final { scan-assembler-times {vl2re16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 3 } } */
 /* { dg-final { scan-assembler-times {vl8re16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 4 } } */
-/* { 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 } } */
+/* { dg-final { scan-assembler-times {vl4re16\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 3 } } */
+/* { dg-final { scan-assembler-times {vs1r\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 4 } } */
+/* { dg-final { scan-assembler-times {vs2r\.v\s+v[0-9]+,\s*0\([a-x][0-9]+\)} 4 } } */
+/* { dg-final { scan-assembler-times {vs4r\.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\([a-x][0-9]+\)} 12 } } */