target/riscv: Remove decode_RV32_64G()

decodetree handles all instructions now so the fallback is not necessary
anymore.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peer Adelt <peer.adelt@hni.uni-paderborn.de>

diff --git a/target/riscv/translate.c b/target/riscv/translate.c
index 92be090bc7bb24083a9d896c689065b5caafb0e3..049fa65c661189ebe4b72497d858ccdaa6809e19 100644 (file)
--- a/target/riscv/translate.c
+++ b/target/riscv/translate.c
@@ -651,24 +651,6 @@ bool decode_insn16(DisasContext *ctx, uint16_t insn);
 #include "decode_insn16.inc.c"
 #include "insn_trans/trans_rvc.inc.c"
 
-static void decode_RV32_64G(DisasContext *ctx)
-{
-    uint32_t op;
-
-    /* We do not do misaligned address check here: the address should never be
-     * misaligned at this point. Instructions that set PC must do the check,
-     * since epc must be the address of the instruction that caused us to
-     * perform the misaligned instruction fetch */
-
-    op = MASK_OP_MAJOR(ctx->opcode);
-
-    switch (op) {
-    default:
-        gen_exception_illegal(ctx);
-        break;
-    }
-}
-
 static void decode_opc(DisasContext *ctx)
 {
     /* check for compressed insn */
@@ -685,8 +667,7 @@ static void decode_opc(DisasContext *ctx)
     } else {
         ctx->pc_succ_insn = ctx->base.pc_next + 4;
         if (!decode_insn32(ctx, ctx->opcode)) {
-            /* fallback to old decoder */
-            decode_RV32_64G(ctx);
+            gen_exception_illegal(ctx);
         }
     }
 }