From: Indu Bhagat <indu.bhagat@oracle.com>
Date: Fri, 19 Jul 2024 03:24:26 +0000 (-0700)
Subject: opcodes: aarch64: add flags to denote subclasses of uncond branches
X-Git-Tag: binutils-2_43~88
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=61f82dcb030b351624e9da3cdd950500cd11b2a3;p=thirdparty%2Fbinutils-gdb.git

opcodes: aarch64: add flags to denote subclasses of uncond branches

Use the two new subclass flags: F_BRANCH_CALL, F_BRANCH_RET, to indicate
call to and return from subroutine respectively.

opcodes/
	* aarch64-tbl.h: Use the new F_BRANCH_* flags.
---

diff --git a/opcodes/aarch64-tbl.h b/opcodes/aarch64-tbl.h
index 66f9602c4dc..d324755b617 100644
--- a/opcodes/aarch64-tbl.h
+++ b/opcodes/aarch64-tbl.h
@@ -3892,26 +3892,26 @@ const struct aarch64_opcode aarch64_opcode_table[] =
   CORE_INSN ("lsl", 0x53000000, 0x7f800000, bitfield, OP_LSL_IMM, OP3 (Rd, Rn, IMM), QL_SHIFT, F_ALIAS | F_P2 | F_CONV),
   CORE_INSN ("lsr", 0x53000000, 0x7f800000, bitfield, OP_LSR_IMM, OP3 (Rd, Rn, IMM), QL_SHIFT, F_ALIAS | F_P2 | F_CONV),
   /* Unconditional branch (immediate).  */
-  CORE_INSN ("b", 0x14000000, 0xfc000000, branch_imm, OP_B, OP1 (ADDR_PCREL26), QL_PCREL_26, 0),
-  CORE_INSN ("bl", 0x94000000, 0xfc000000, branch_imm, OP_BL, OP1 (ADDR_PCREL26), QL_PCREL_26, 0),
+  CORE_INSN ("b", 0x14000000, 0xfc000000, branch_imm, OP_B, OP1 (ADDR_PCREL26), QL_PCREL_26, F_SUBCLASS_OTHER),
+  CORE_INSN ("bl", 0x94000000, 0xfc000000, branch_imm, OP_BL, OP1 (ADDR_PCREL26), QL_PCREL_26, F_BRANCH_CALL),
   /* Unconditional branch (register).  */
-  CORE_INSN ("br", 0xd61f0000, 0xfffffc1f, branch_reg, 0, OP1 (Rn), QL_I1X, 0),
-  CORE_INSN ("blr", 0xd63f0000, 0xfffffc1f, branch_reg, 0, OP1 (Rn), QL_I1X, 0),
-  CORE_INSN ("ret", 0xd65f0000, 0xfffffc1f, branch_reg, 0, OP1 (Rn), QL_I1X, F_OPD0_OPT | F_DEFAULT (30)),
-  CORE_INSN ("eret", 0xd69f03e0, 0xffffffff, branch_reg, 0, OP0 (), {}, 0),
-  CORE_INSN ("drps", 0xd6bf03e0, 0xffffffff, branch_reg, 0, OP0 (), {}, 0),
-  PAUTH_INSN ("braa", 0xd71f0800, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, 0),
-  PAUTH_INSN ("brab", 0xd71f0c00, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, 0),
-  PAUTH_INSN ("blraa", 0xd73f0800, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, 0),
-  PAUTH_INSN ("blrab", 0xd73f0c00, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, 0),
-  PAUTH_INSN ("braaz", 0xd61f081f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, 0),
-  PAUTH_INSN ("brabz", 0xd61f0c1f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, 0),
-  PAUTH_INSN ("blraaz", 0xd63f081f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, 0),
-  PAUTH_INSN ("blrabz", 0xd63f0c1f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, 0),
-  PAUTH_INSN ("retaa", 0xd65f0bff, 0xffffffff, branch_reg, OP0 (), {}, 0),
-  PAUTH_INSN ("retab", 0xd65f0fff, 0xffffffff, branch_reg, OP0 (), {}, 0),
-  PAUTH_INSN ("eretaa", 0xd69f0bff, 0xffffffff, branch_reg, OP0 (), {}, 0),
-  PAUTH_INSN ("eretab", 0xd69f0fff, 0xffffffff, branch_reg, OP0 (), {}, 0),
+  CORE_INSN ("br", 0xd61f0000, 0xfffffc1f, branch_reg, 0, OP1 (Rn), QL_I1X, F_SUBCLASS_OTHER),
+  CORE_INSN ("blr", 0xd63f0000, 0xfffffc1f, branch_reg, 0, OP1 (Rn), QL_I1X, F_BRANCH_CALL),
+  CORE_INSN ("ret", 0xd65f0000, 0xfffffc1f, branch_reg, 0, OP1 (Rn), QL_I1X, F_BRANCH_RET | F_OPD0_OPT | F_DEFAULT (30)),
+  CORE_INSN ("eret", 0xd69f03e0, 0xffffffff, branch_reg, 0, OP0 (), {}, F_BRANCH_RET),
+  CORE_INSN ("drps", 0xd6bf03e0, 0xffffffff, branch_reg, 0, OP0 (), {}, F_SUBCLASS_OTHER),
+  PAUTH_INSN ("braa", 0xd71f0800, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, F_SUBCLASS_OTHER),
+  PAUTH_INSN ("brab", 0xd71f0c00, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, F_SUBCLASS_OTHER),
+  PAUTH_INSN ("blraa", 0xd73f0800, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, F_BRANCH_CALL),
+  PAUTH_INSN ("blrab", 0xd73f0c00, 0xfffffc00, branch_reg, OP2 (Rn, Rd_SP), QL_I2SAMEX, F_BRANCH_CALL),
+  PAUTH_INSN ("braaz", 0xd61f081f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, F_SUBCLASS_OTHER),
+  PAUTH_INSN ("brabz", 0xd61f0c1f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, F_SUBCLASS_OTHER),
+  PAUTH_INSN ("blraaz", 0xd63f081f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, F_BRANCH_CALL),
+  PAUTH_INSN ("blrabz", 0xd63f0c1f, 0xfffffc1f, branch_reg, OP1 (Rn), QL_I1X, F_BRANCH_CALL),
+  PAUTH_INSN ("retaa", 0xd65f0bff, 0xffffffff, branch_reg, OP0 (), {}, F_BRANCH_RET),
+  PAUTH_INSN ("retab", 0xd65f0fff, 0xffffffff, branch_reg, OP0 (), {}, F_BRANCH_RET),
+  PAUTH_INSN ("eretaa", 0xd69f0bff, 0xffffffff, branch_reg, OP0 (), {}, F_BRANCH_RET),
+  PAUTH_INSN ("eretab", 0xd69f0fff, 0xffffffff, branch_reg, OP0 (), {}, F_BRANCH_RET),
   /* Compare & branch (immediate).  */
   CORE_INSN ("cbz", 0x34000000, 0x7f000000, compbranch, 0, OP2 (Rt, ADDR_PCREL19), QL_R_PCREL, F_SF),
   CORE_INSN ("cbnz", 0x35000000, 0x7f000000, compbranch, 0, OP2 (Rt, ADDR_PCREL19), QL_R_PCREL, F_SF),