[v1,2/2] target/riscv: redirect XVentanaCondOps to use the Zicond functions

Commit Message

Philipp Tomsich Jan. 20, 2023, 3:27 p.m. UTC

The Zicond standard extension implements the same instruction
semantics as XVentanaCondOps, although using different mnemonics and
opcodes.

Point XVentanaCondOps to the (newly implemented) Zicond implementation
to reduce the future maintenance burden.

Also updating MAINTAINERS as trans_xventanacondops.c.inc will not see
active maintenance from here forward.

Signed-off-by: Philipp Tomsich <[e-mail]>
---

 MAINTAINERS                                    |  2 +-
 .../insn_trans/trans_xventanacondops.c.inc     | 18 +++---------------
 2 files changed, 4 insertions(+), 16 deletions(-)

Patch

diff --git a/MAINTAINERS b/MAINTAINERS
index ca914c42fa..293a9d1c8c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -305,7 +305,7 @@  F: target/riscv/insn_trans/trans_zicond.c.inc
 RISC-V XVentanaCondOps extension
 M: Philipp Tomsich <[e-mail]>
 L: [e-mail]
-S: Supported
+S: Odd Fixes
 F: target/riscv/XVentanaCondOps.decode
 F: target/riscv/insn_trans/trans_xventanacondops.c.inc
 
diff --git a/target/riscv/insn_trans/trans_xventanacondops.c.inc b/target/riscv/insn_trans/trans_xventanacondops.c.inc
index 16849e6d4e..d6dbe89a77 100644
--- a/target/riscv/insn_trans/trans_xventanacondops.c.inc
+++ b/target/riscv/insn_trans/trans_xventanacondops.c.inc
@@ -1,7 +1,7 @@ 
 /*
  * RISC-V translation routines for the XVentanaCondOps extension.
  *
- * Copyright (c) 2021-2022 VRULL GmbH.
+ * Copyright (c) 2021-2023 VRULL GmbH.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -16,24 +16,12 @@ 
  * this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-static bool gen_vt_condmask(DisasContext *ctx, arg_r *a, TCGCond cond)
-{
-    TCGv dest = dest_gpr(ctx, a->rd);
-    TCGv src1 = get_gpr(ctx, a->rs1, EXT_NONE);
-    TCGv src2 = get_gpr(ctx, a->rs2, EXT_NONE);
-
-    tcg_gen_movcond_tl(cond, dest, src2, ctx->zero, src1, ctx->zero);
-
-    gen_set_gpr(ctx, a->rd, dest);
-    return true;
-}
-
 static bool trans_vt_maskc(DisasContext *ctx, arg_r *a)
 {
-    return gen_vt_condmask(ctx, a, TCG_COND_NE);
+    return trans_czero_eqz(ctx, a);
 }
 
 static bool trans_vt_maskcn(DisasContext *ctx, arg_r *a)
 {
-    return gen_vt_condmask(ctx, a, TCG_COND_EQ);
+    return trans_czero_nez(ctx, a);
 }