target/mips: Introduce generic TRANS() macro for decodetree helpers

Plain copy/paste of the TRANS() macro introduced in the PPC
commit f2aabda8ac9 ("target/ppc: Move D/DS/X-form integer
loads to decodetree") to the MIPS target.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210808173018.90960-2-f4bug@amsat.org>

diff --git a/target/mips/tcg/translate.h b/target/mips/tcg/translate.h
index c25fad597d5feb41e7e1a893932e77566ab63d5f..791e3e2c7e81421ea7be527cd25abae7dfedef45 100644 (file)
--- a/target/mips/tcg/translate.h
+++ b/target/mips/tcg/translate.h
@@ -202,4 +202,12 @@ bool decode_ext_txx9(DisasContext *ctx, uint32_t insn);
 bool decode_ext_tx79(DisasContext *ctx, uint32_t insn);
 #endif
 
+/*
+ * 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 *ctx, arg_##NAME *a) \
+    { return FUNC(ctx, a, __VA_ARGS__); }
+
 #endif