RISC-V: Add mininal support for Zicbo[mzp]

This commit adds minimal support for 'Zicbom','Zicboz' and 'Zicbop' extensions.

gcc/ChangeLog:

	* common/config/riscv/riscv-common.cc: Add zicbom, zicboz, zicbop extensions.
	* config/riscv/riscv-opts.h (MASK_ZICBOZ): New.
	(MASK_ZICBOM): New.
	(MASK_ZICBOP): New.
	(TARGET_ZICBOZ): New.
	(TARGET_ZICBOM): New.
	(TARGET_ZICBOP): New.
	* config/riscv/riscv.opt (riscv_zicmo_subext): New.

diff --git a/gcc/common/config/riscv/riscv-common.cc b/gcc/common/config/riscv/riscv-common.cc
index 0b0ec2c..0e5be2c 100644 (file)
--- a/gcc/common/config/riscv/riscv-common.cc
+++ b/gcc/common/config/riscv/riscv-common.cc
@@ -165,6 +165,10 @@ static const struct riscv_ext_version riscv_ext_version_table[] =
   {"zksh",  ISA_SPEC_CLASS_NONE, 1, 0},
   {"zkt",   ISA_SPEC_CLASS_NONE, 1, 0},
 
+  {"zicboz",ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zicbom",ISA_SPEC_CLASS_NONE, 1, 0},
+  {"zicbop",ISA_SPEC_CLASS_NONE, 1, 0},
+
   {"zk",    ISA_SPEC_CLASS_NONE, 1, 0},
   {"zkn",   ISA_SPEC_CLASS_NONE, 1, 0},
   {"zks",   ISA_SPEC_CLASS_NONE, 1, 0},
@@ -1110,6 +1114,10 @@ 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},
 
+  {"zicboz", &gcc_options::x_riscv_zicmo_subext, MASK_ZICBOZ},
+  {"zicbom", &gcc_options::x_riscv_zicmo_subext, MASK_ZICBOM},
+  {"zicbop", &gcc_options::x_riscv_zicmo_subext, MASK_ZICBOP},
+
   {"zve32x",   &gcc_options::x_target_flags, MASK_VECTOR},
   {"zve32f",   &gcc_options::x_target_flags, MASK_VECTOR},
   {"zve64x",   &gcc_options::x_target_flags, MASK_VECTOR},

diff --git a/gcc/config/riscv/riscv-opts.h b/gcc/config/riscv/riscv-opts.h
index 15bb5e7..1e153b3 100644 (file)
--- a/gcc/config/riscv/riscv-opts.h
+++ b/gcc/config/riscv/riscv-opts.h
@@ -145,6 +145,14 @@ enum stack_protector_guard {
 #define TARGET_ZVL32768B ((riscv_zvl_flags & MASK_ZVL32768B) != 0)
 #define TARGET_ZVL65536B ((riscv_zvl_flags & MASK_ZVL65536B) != 0)
 
+#define MASK_ZICBOZ   (1 << 0)
+#define MASK_ZICBOM   (1 << 1)
+#define MASK_ZICBOP   (1 << 2)
+
+#define TARGET_ZICBOZ ((riscv_zicmo_subext & MASK_ZICBOZ) != 0)
+#define TARGET_ZICBOM ((riscv_zicmo_subext & MASK_ZICBOM) != 0)
+#define TARGET_ZICBOP ((riscv_zicmo_subext & MASK_ZICBOP) != 0)
+
 /* Bit of riscv_zvl_flags will set contintuly, N-1 bit will set if N-bit is
    set, e.g. MASK_ZVL64B has set then MASK_ZVL32B is set, so we can use
    popcount to caclulate the minimal VLEN.  */

diff --git a/gcc/config/riscv/riscv.opt b/gcc/config/riscv/riscv.opt
index 84c8cf5..9e9fe6d 100644 (file)
--- a/gcc/config/riscv/riscv.opt
+++ b/gcc/config/riscv/riscv.opt
@@ -209,6 +209,9 @@ int riscv_vector_elen_flags
 TargetVariable
 int riscv_zvl_flags
 
+TargetVariable
+int riscv_zicmo_subext
+
 Enum
 Name(isa_spec_class) Type(enum riscv_isa_spec_class)
 Supported ISA specs (for use with the -misa-spec= option):