RISC-V: Minimal support of vector extensions

gcc/ChangeLog:

	* common/config/riscv/riscv-common.c (riscv_implied_info): Add
	vector extensions.
	(riscv_ext_version_table): Add version info for vector extensions.
	(riscv_ext_flag_table): Add option mask for vector extensions.
	* config/riscv/riscv-opts.h (MASK_VECTOR_EEW_32): New.
	(MASK_VECTOR_EEW_64): New.
	(MASK_VECTOR_EEW_FP_32): New.
	(MASK_VECTOR_EEW_FP_64): New.
	(MASK_ZVL32B): New.
	(MASK_ZVL64B): New.
	(MASK_ZVL128B): New.
	(MASK_ZVL256B): New.
	(MASK_ZVL512B): New.
	(MASK_ZVL1024B): New.
	(MASK_ZVL2048B): New.
	(MASK_ZVL4096B): New.
	(MASK_ZVL8192B): New.
	(MASK_ZVL16384B): New.
	(MASK_ZVL32768B): New.
	(MASK_ZVL65536B): New.
	(TARGET_ZVL32B): New.
	(TARGET_ZVL64B): New.
	(TARGET_ZVL128B): New.
	(TARGET_ZVL256B): New.
	(TARGET_ZVL512B): New.
	(TARGET_ZVL1024B): New.
	(TARGET_ZVL2048B): New.
	(TARGET_ZVL4096B): New.
	(TARGET_ZVL8192B): New.
	(TARGET_ZVL16384B): New.
	(TARGET_ZVL32768B): New.
	(TARGET_ZVL65536B): New.
	* config/riscv/riscv.opt (Mask(VECTOR)): New.
	(riscv_vector_eew_flags): New.
	(riscv_zvl_flags): New.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/predef-14.c: New.
	* gcc.target/riscv/predef-15.c: Ditto.
	* gcc.target/riscv/predef-16.c: Ditto.

6 files changed, 390 insertions, 0 deletions

diff --git a/gcc/common/config/riscv/riscv-common.c b/gcc/common/config/riscv/riscv-common.c
index ecbca6c..c1d8431 100644
--- a/gcc/common/config/riscv/riscv-common.c
+++ b/gcc/common/config/riscv/riscv-common.c
@@ -64,6 +64,38 @@ static const riscv_implied_info_t riscv_implied_info[] =
   {"zks", "zbkx"},
   {"zks", "zksed"},
   {"zks", "zksh"},
+
+  {"v", "zvl128b"},
+  {"v", "zve64d"},
+
+  {"zve32f", "f"},
+  {"zve64f", "f"},
+  {"zve64d", "d"},
+
+  {"zve32x", "zvl32b"},
+  {"zve32f", "zve32x"},
+  {"zve32f", "zvl32b"},
+
+  {"zve64x", "zve32x"},
+  {"zve64x", "zvl64b"},
+  {"zve64f", "zve32f"},
+  {"zve64f", "zve64x"},
+  {"zve64f", "zvl64b"},
+  {"zve64d", "zve64f"},
+  {"zve64d", "zvl64b"},
+
+  {"zvl64b", "zvl32b"},
+  {"zvl128b", "zvl64b"},
+  {"zvl256b", "zvl128b"},
+  {"zvl512b", "zvl256b"},
+  {"zvl1024b", "zvl512b"},
+  {"zvl2048b", "zvl1024b"},
+  {"zvl4096b", "zvl2048b"},
+  {"zvl8192b", "zvl4096b"},
+  {"zvl16384b", "zvl8192b"},
+  {"zvl32768b", "zvl16384b"},
+  {"zvl65536b", "zvl32768b"},
+
   {NULL, NULL}
 };
 
@@ -109,6 +141,8 @@ static const struct riscv_ext_version riscv_ext_version_table[] =
   {"c", ISA_SPEC_CLASS_20190608, 2, 0},
   {"c", ISA_SPEC_CLASS_2P2,      2, 0},
 
+  {"v",       ISA_SPEC_CLASS_NONE, 1, 0},
+
   {"zicsr", ISA_SPEC_CLASS_20191213, 2, 0},
   {"zicsr", ISA_SPEC_CLASS_20190608, 2, 0},
 
@@ -131,6 +165,26 @@ static const struct riscv_ext_version riscv_ext_version_table[] =
   {"zksh",  ISA_SPEC_CLASS_NONE, 1, 0},
   {"zkt",   ISA_SPEC_CLASS_NONE, 1, 0},
 
+  {"zve32x", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zve32f", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zve32d", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zve64x", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zve64f", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zve64d", ISA_SPEC_CLASS_NONE, 1, 0},
+
+  {"zvl32b", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zvl64b", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zvl128b", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zvl256b", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zvl512b", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zvl1024b", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zvl2048b", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zvl4096b", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zvl8192b", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zvl16384b", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zvl32768b", ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zvl65536b", ISA_SPEC_CLASS_NONE, 1, 0},
+
   /* Terminate the list.  */
   {NULL, ISA_SPEC_CLASS_NONE, 0, 0}
 };
@@ -965,6 +1019,7 @@ static const riscv_ext_flag_table_t riscv_ext_flag_table[] =
   {"f", &gcc_options::x_target_flags, MASK_HARD_FLOAT},
   {"d", &gcc_options::x_target_flags, MASK_DOUBLE_FLOAT},
   {"c", &gcc_options::x_target_flags, MASK_RVC},
+  {"v", &gcc_options::x_target_flags, MASK_VECTOR},
 
   {"zicsr",    &gcc_options::x_riscv_zi_subext, MASK_ZICSR},
   {"zifencei", &gcc_options::x_riscv_zi_subext, MASK_ZIFENCEI},
@@ -985,6 +1040,37 @@ static const riscv_ext_flag_table_t riscv_ext_flag_table[] =
   {"zksh",   &gcc_options::x_riscv_zk_subext, MASK_ZKSH},
   {"zkt",    &gcc_options::x_riscv_zk_subext, MASK_ZKT},
 
+  {"zve32x",   &gcc_options::x_target_flags, MASK_VECTOR},
+  {"zve32f",   &gcc_options::x_target_flags, MASK_VECTOR},
+  {"zve64x",   &gcc_options::x_target_flags, MASK_VECTOR},
+  {"zve64f",   &gcc_options::x_target_flags, MASK_VECTOR},
+  {"zve64d",   &gcc_options::x_target_flags, MASK_VECTOR},
+
+  /* We don't need to put complete EEW/EEW_FP info here, due to the
+     implication relation of vector extension.
+     e.g. v -> zve64d ... zve32x, so v has set MASK_VECTOR_EEW_FP_64,
+     MASK_VECTOR_EEW_FP_32, MASK_VECTOR_EEW_64 and MASK_VECTOR_EEW_32
+     due to the extension implication.  */
+  {"zve32x",   &gcc_options::x_riscv_vector_eew_flags, MASK_VECTOR_EEW_32},
+  {"zve32f",   &gcc_options::x_riscv_vector_eew_flags, MASK_VECTOR_EEW_FP_32},
+  {"zve64x",   &gcc_options::x_riscv_vector_eew_flags, MASK_VECTOR_EEW_64},
+  {"zve64f",   &gcc_options::x_riscv_vector_eew_flags, MASK_VECTOR_EEW_FP_32},
+  {"zve64d",   &gcc_options::x_riscv_vector_eew_flags, MASK_VECTOR_EEW_FP_64},
+
+  {"zvl32b",    &gcc_options::x_riscv_zvl_flags, MASK_ZVL32B},
+  {"zvl64b",    &gcc_options::x_riscv_zvl_flags, MASK_ZVL64B},
+  {"zvl128b",   &gcc_options::x_riscv_zvl_flags, MASK_ZVL128B},
+  {"zvl256b",   &gcc_options::x_riscv_zvl_flags, MASK_ZVL256B},
+  {"zvl512b",   &gcc_options::x_riscv_zvl_flags, MASK_ZVL512B},
+  {"zvl1024b",  &gcc_options::x_riscv_zvl_flags, MASK_ZVL1024B},
+  {"zvl2048b",  &gcc_options::x_riscv_zvl_flags, MASK_ZVL2048B},
+  {"zvl4096b",  &gcc_options::x_riscv_zvl_flags, MASK_ZVL4096B},
+  {"zvl8192b",  &gcc_options::x_riscv_zvl_flags, MASK_ZVL8192B},
+  {"zvl16384b", &gcc_options::x_riscv_zvl_flags, MASK_ZVL16384B},
+  {"zvl32768b", &gcc_options::x_riscv_zvl_flags, MASK_ZVL32768B},
+  {"zvl65536b", &gcc_options::x_riscv_zvl_flags, MASK_ZVL65536B},
+
+
   {NULL, NULL, 0}
 };
 
diff --git a/gcc/config/riscv/riscv-opts.h b/gcc/config/riscv/riscv-opts.h
index 6a0354d..929e4e3 100644
--- a/gcc/config/riscv/riscv-opts.h
+++ b/gcc/config/riscv/riscv-opts.h
@@ -105,4 +105,35 @@ enum stack_protector_guard {
 #define TARGET_ZKSH   ((riscv_zk_subext & MASK_ZKSH) != 0)
 #define TARGET_ZKT    ((riscv_zk_subext & MASK_ZKT) != 0)
 
+#define MASK_VECTOR_EEW_32    (1 << 0)
+#define MASK_VECTOR_EEW_64    (1 << 1)
+#define MASK_VECTOR_EEW_FP_32 (1 << 2)
+#define MASK_VECTOR_EEW_FP_64 (1 << 3)
+
+#define MASK_ZVL32B    (1 <<  0)
+#define MASK_ZVL64B    (1 <<  1)
+#define MASK_ZVL128B   (1 <<  2)
+#define MASK_ZVL256B   (1 <<  3)
+#define MASK_ZVL512B   (1 <<  4)
+#define MASK_ZVL1024B  (1 <<  5)
+#define MASK_ZVL2048B  (1 <<  6)
+#define MASK_ZVL4096B  (1 <<  7)
+#define MASK_ZVL8192B  (1 <<  8)
+#define MASK_ZVL16384B (1 <<  9)
+#define MASK_ZVL32768B (1 << 10)
+#define MASK_ZVL65536B (1 << 11)
+
+#define TARGET_ZVL32B    ((riscv_zvl_flags & MASK_ZVL32B) != 0)
+#define TARGET_ZVL64B    ((riscv_zvl_flags & MASK_ZVL64B) != 0)
+#define TARGET_ZVL128B   ((riscv_zvl_flags & MASK_ZVL128B) != 0)
+#define TARGET_ZVL256B   ((riscv_zvl_flags & MASK_ZVL256B) != 0)
+#define TARGET_ZVL512B   ((riscv_zvl_flags & MASK_ZVL512B) != 0)
+#define TARGET_ZVL1024B  ((riscv_zvl_flags & MASK_ZVL1024B) != 0)
+#define TARGET_ZVL2048B  ((riscv_zvl_flags & MASK_ZVL2048B) != 0)
+#define TARGET_ZVL4096B  ((riscv_zvl_flags & MASK_ZVL4096B) != 0)
+#define TARGET_ZVL8192B  ((riscv_zvl_flags & MASK_ZVL8192B) != 0)
+#define TARGET_ZVL16384B ((riscv_zvl_flags & MASK_ZVL16384B) != 0)
+#define TARGET_ZVL32768B ((riscv_zvl_flags & MASK_ZVL32768B) != 0)
+#define TARGET_ZVL65536B ((riscv_zvl_flags & MASK_ZVL65536B) != 0)
+
 #endif /* ! GCC_RISCV_OPTS_H */
diff --git a/gcc/config/riscv/riscv.opt b/gcc/config/riscv/riscv.opt
index 486121b..9fffc08 100644
--- a/gcc/config/riscv/riscv.opt
+++ b/gcc/config/riscv/riscv.opt
@@ -146,6 +146,8 @@ Mask(RVC)
 
 Mask(RVE)
 
+Mask(VECTOR)
+
 mriscv-attribute
 Target Var(riscv_emit_attribute_p) Init(-1)
 Emit RISC-V ELF attribute.
@@ -201,6 +203,12 @@ int riscv_zb_subext
 TargetVariable
 int riscv_zk_subext
 
+TargetVariable
+int riscv_vector_eew_flags
+
+TargetVariable
+int riscv_zvl_flags
+
 Enum
 Name(isa_spec_class) Type(enum riscv_isa_spec_class)
 Supported ISA specs (for use with the -misa-spec= option):
diff --git a/gcc/testsuite/gcc.target/riscv/predef-14.c b/gcc/testsuite/gcc.target/riscv/predef-14.c
new file mode 100644
index 0000000..108fc0c
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/predef-14.c
@@ -0,0 +1,83 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=rv32iv -mabi=ilp32 -mcmodel=medlow -misa-spec=2.2" } */
+
+int main () {
+
+#ifndef __riscv_arch_test
+#error "__riscv_arch_test"
+#endif
+
+#if __riscv_xlen != 32
+#error "__riscv_xlen"
+#endif
+
+#if !defined(__riscv_i)
+#error "__riscv_i"
+#endif
+
+#if defined(__riscv_c)
+#error "__riscv_c"
+#endif
+
+#if defined(__riscv_e)
+#error "__riscv_e"
+#endif
+
+#if defined(__riscv_a)
+#error "__riscv_a"
+#endif
+
+#if defined(__riscv_m)
+#error "__riscv_m"
+#endif
+
+#if !defined(__riscv_f)
+#error "__riscv_f"
+#endif
+
+#if !defined(__riscv_d)
+#error "__riscv_d"
+#endif
+
+#if !defined(__riscv_v)
+#error "__riscv_v"
+#endif
+
+#if !defined(__riscv_zvl32b)
+#error "__riscv_zvl32b"
+#endif
+
+#if !defined(__riscv_zvl64b)
+#error "__riscv_zvl64b"
+#endif
+
+#if !defined(__riscv_zvl128b)
+#error "__riscv_zvl128b"
+#endif
+
+#if defined(__riscv_zvl256b)
+#error "__riscv_zvl256b"
+#endif
+
+#if !defined(__riscv_zve32x)
+#error "__riscv_zve32x"
+#endif
+
+#if !defined(__riscv_zve32f)
+#error "__riscv_zve32f"
+#endif
+
+#if !defined(__riscv_zve64x)
+#error "__riscv_zve64x"
+#endif
+
+#if !defined(__riscv_zve64f)
+#error "__riscv_zve64f"
+#endif
+
+#if !defined(__riscv_zve64d)
+#error "__riscv_zve64d"
+#endif
+
+  return 0;
+}
diff --git a/gcc/testsuite/gcc.target/riscv/predef-15.c b/gcc/testsuite/gcc.target/riscv/predef-15.c
new file mode 100644
index 0000000..a37c457
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/predef-15.c
@@ -0,0 +1,91 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=rv64iv_zvl512b -mabi=lp64 -mcmodel=medlow -misa-spec=2.2" } */
+
+int main () {
+
+#ifndef __riscv_arch_test
+#error "__riscv_arch_test"
+#endif
+
+#if __riscv_xlen != 64
+#error "__riscv_xlen"
+#endif
+
+#if !defined(__riscv_i)
+#error "__riscv_i"
+#endif
+
+#if defined(__riscv_c)
+#error "__riscv_c"
+#endif
+
+#if defined(__riscv_e)
+#error "__riscv_e"
+#endif
+
+#if defined(__riscv_a)
+#error "__riscv_a"
+#endif
+
+#if defined(__riscv_m)
+#error "__riscv_m"
+#endif
+
+#if !defined(__riscv_f)
+#error "__riscv_f"
+#endif
+
+#if !defined(__riscv_d)
+#error "__riscv_d"
+#endif
+
+#if !defined(__riscv_v)
+#error "__riscv_v"
+#endif
+
+#if !defined(__riscv_zvl32b)
+#error "__riscv_zvl32b"
+#endif
+
+#if !defined(__riscv_zvl64b)
+#error "__riscv_zvl64b"
+#endif
+
+#if !defined(__riscv_zvl128b)
+#error "__riscv_zvl128b"
+#endif
+
+#if !defined(__riscv_zvl256b)
+#error "__riscv_zvl256b"
+#endif
+
+#if !defined(__riscv_zvl512b)
+#error "__riscv_zvl512b"
+#endif
+
+#if defined(__riscv_zvl1024b)
+#error "__riscv_zvl1024b"
+#endif
+
+#if !defined(__riscv_zve32x)
+#error "__riscv_zve32x"
+#endif
+
+#if !defined(__riscv_zve32f)
+#error "__riscv_zve32f"
+#endif
+
+#if !defined(__riscv_zve64x)
+#error "__riscv_zve64x"
+#endif
+
+#if !defined(__riscv_zve64f)
+#error "__riscv_zve64f"
+#endif
+
+#if !defined(__riscv_zve64d)
+#error "__riscv_zve64d"
+#endif
+
+  return 0;
+}
diff --git a/gcc/testsuite/gcc.target/riscv/predef-16.c b/gcc/testsuite/gcc.target/riscv/predef-16.c
new file mode 100644
index 0000000..6c5c874
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/predef-16.c
@@ -0,0 +1,91 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -march=rv64i_zve64f -mabi=lp64 -mcmodel=medlow -misa-spec=2.2" } */
+
+int main () {
+
+#ifndef __riscv_arch_test
+#error "__riscv_arch_test"
+#endif
+
+#if __riscv_xlen != 64
+#error "__riscv_xlen"
+#endif
+
+#if !defined(__riscv_i)
+#error "__riscv_i"
+#endif
+
+#if defined(__riscv_c)
+#error "__riscv_c"
+#endif
+
+#if defined(__riscv_e)
+#error "__riscv_e"
+#endif
+
+#if defined(__riscv_a)
+#error "__riscv_a"
+#endif
+
+#if defined(__riscv_m)
+#error "__riscv_m"
+#endif
+
+#if !defined(__riscv_f)
+#error "__riscv_f"
+#endif
+
+#if defined(__riscv_d)
+#error "__riscv_d"
+#endif
+
+#if defined(__riscv_v)
+#error "__riscv_v"
+#endif
+
+#if !defined(__riscv_zvl32b)
+#error "__riscv_zvl32b"
+#endif
+
+#if !defined(__riscv_zvl64b)
+#error "__riscv_zvl64b"
+#endif
+
+#if defined(__riscv_zvl128b)
+#error "__riscv_zvl128b"
+#endif
+
+#if defined(__riscv_zvl256b)
+#error "__riscv_zvl256b"
+#endif
+
+#if defined(__riscv_zvl512b)
+#error "__riscv_zvl512b"
+#endif
+
+#if defined(__riscv_zvl1024b)
+#error "__riscv_zvl1024b"
+#endif
+
+#if !defined(__riscv_zve32x)
+#error "__riscv_zve32x"
+#endif
+
+#if !defined(__riscv_zve32f)
+#error "__riscv_zve32f"
+#endif
+
+#if !defined(__riscv_zve64x)
+#error "__riscv_zve64x"
+#endif
+
+#if !defined(__riscv_zve64f)
+#error "__riscv_zve64f"
+#endif
+
+#if defined(__riscv_zve64d)
+#error "__riscv_zve64d"
+#endif
+
+  return 0;
+}