[PULL 004/117] target/arm: Introduce TRANS, TRANS_FEAT

[Peter Maydell]

From: Richard Henderson <richard.henderson@linaro.org>

Steal the idea for these leaf function expanders from PowerPC.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220527181907.189259-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/translate.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/target/arm/translate.h b/target/arm/translate.h
index 6f0ebdc88e5..9f0bb270c5b 100644
--- a/target/arm/translate.h
+++ b/target/arm/translate.h
@@ -576,4 +576,15 @@ static inline MemOp finalize_memop(DisasContext *s, MemOp 
opc)
  */
 uint64_t asimd_imm_const(uint32_t imm, int cmode, int op);
 
+/*
+ * Helpers for implementing sets of trans_* functions.
+ * Defer the implementation of NAME to FUNC, with optional extra arguments.
+ */
+#define TRANS(NAME, FUNC, ...) \
+    static bool trans_##NAME(DisasContext *s, arg_##NAME *a) \
+    { return FUNC(s, __VA_ARGS__); }
+#define TRANS_FEAT(NAME, FEAT, FUNC, ...) \
+    static bool trans_##NAME(DisasContext *s, arg_##NAME *a) \
+    { return dc_isar_feature(FEAT, s) && FUNC(s, __VA_ARGS__); }
+
 #endif /* TARGET_ARM_TRANSLATE_H */
-- 
2.25.1