On 10/23/21 2:47 PM, Philippe Mathieu-Daudé wrote:
Similar to the TRANS() macro introduced in commit fb3164e412d,
introduce TRANS_CHECK() which takes a boolean expression as
argument.

Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
  target/mips/tcg/translate.h | 9 +++++++++
  1 file changed, 9 insertions(+)

diff --git a/target/mips/tcg/translate.h b/target/mips/tcg/translate.h
index 6111493651f..3ef09cc50c9 100644
--- a/target/mips/tcg/translate.h
+++ b/target/mips/tcg/translate.h
@@ -224,6 +224,15 @@ bool decode_ext_vr54xx(DisasContext *ctx, uint32_t insn);
      static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
      { return FUNC(ctx, a, __VA_ARGS__); }
+#define TRANS_CHECK(NAME, CHECK_EXPR, FUNC, ...) \
+    static bool trans_##NAME(DisasContext *ctx, arg_##NAME *a) \
+    { \
+        if (!(CHECK_EXPR)) { \
+            return false; \
+        } \
+        return FUNC(ctx, a, __VA_ARGS__); \
+    }

So... if you're going to do this generically, you may want to adjust check_msa_access. OTOH, perhaps all you want is a more local TRANS_MSA, with the CHECK_EXPR built in.


r~

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