diff mbox series

[v4,08/16] target/riscv: Replace is_32bit with get_xl/get_xlen

Message ID 20211019000108.3678724-9-richard.henderson@linaro.org
State Superseded
Headers show
Series target/riscv: Rationalize XLEN and operand length | expand

Commit Message

Richard Henderson Oct. 19, 2021, 12:01 a.m. UTC 
In preparation for RV128, replace a simple predicate
with a more versatile test.

Reviewed-by: LIU Zhiwei <zhiwei_liu@c-sky.com>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 target/riscv/translate.c | 33 ++++++++++++++++++---------------
 1 file changed, 18 insertions(+), 15 deletions(-)

-- 
2.25.1
diff mbox series

Patch

diff --git a/target/riscv/translate.c b/target/riscv/translate.c
index f7634c175a..3f1abbac5c 100644
--- a/target/riscv/translate.c
+++ b/target/riscv/translate.c
@@ -91,16 +91,19 @@  static inline bool has_ext(DisasContext *ctx, uint32_t ext)
 }
 
 #ifdef TARGET_RISCV32
-# define is_32bit(ctx)  true
+#define get_xl(ctx)    MXL_RV32
 #elif defined(CONFIG_USER_ONLY)
-# define is_32bit(ctx)  false
+#define get_xl(ctx)    MXL_RV64
 #else
-static inline bool is_32bit(DisasContext *ctx)
-{
-    return ctx->xl == MXL_RV32;
-}
+#define get_xl(ctx)    ((ctx)->xl)
 #endif
 
+/* The word size for this machine mode. */
+static inline int __attribute__((unused)) get_xlen(DisasContext *ctx)
+{
+    return 16 << get_xl(ctx);
+}
+
 /* The word size for this operation. */
 static inline int oper_len(DisasContext *ctx)
 {
@@ -257,7 +260,7 @@  static void gen_jal(DisasContext *ctx, int rd, target_ulong imm)
 static void mark_fs_dirty(DisasContext *ctx)
 {
     TCGv tmp;
-    target_ulong sd = is_32bit(ctx) ? MSTATUS32_SD : MSTATUS64_SD;
+    target_ulong sd = get_xl(ctx) == MXL_RV32 ? MSTATUS32_SD : MSTATUS64_SD;
 
     if (ctx->mstatus_fs != MSTATUS_FS) {
         /* Remember the state change for the rest of the TB. */
@@ -316,16 +319,16 @@  EX_SH(12)
     }                              \
 } while (0)
 
-#define REQUIRE_32BIT(ctx) do { \
-    if (!is_32bit(ctx)) {       \
-        return false;           \
-    }                           \
+#define REQUIRE_32BIT(ctx) do {    \
+    if (get_xl(ctx) != MXL_RV32) { \
+        return false;              \
+    }                              \
 } while (0)
 
-#define REQUIRE_64BIT(ctx) do { \
-    if (is_32bit(ctx)) {        \
-        return false;           \
-    }                           \
+#define REQUIRE_64BIT(ctx) do {    \
+    if (get_xl(ctx) < MXL_RV64) {  \
+        return false;              \
+    }                              \
 } while (0)
 
 static int ex_rvc_register(DisasContext *ctx, int reg)