[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v2 18/27] target/sh4: Unify code for CHECK_NOT_DELAY
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH v2 18/27] target/sh4: Unify code for CHECK_NOT_DELAY_SLOT |
Date: |
Thu, 6 Jul 2017 16:21:02 -1000 |
We do not need to emit N copies of raising an exception.
Signed-off-by: Richard Henderson <address@hidden>
---
target/sh4/translate.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/target/sh4/translate.c b/target/sh4/translate.c
index 3453f19..41157a0 100644
--- a/target/sh4/translate.c
+++ b/target/sh4/translate.c
@@ -377,11 +377,8 @@ static inline void gen_store_fpr64(DisasContext *ctx,
TCGv_i64 t, int reg)
#define XHACK(x) ((((x) & 1 ) << 4) | ((x) & 0xe))
#define CHECK_NOT_DELAY_SLOT \
- if (ctx->envflags & DELAY_SLOT_MASK) { \
- gen_save_cpu_state(ctx, true); \
- gen_helper_raise_slot_illegal_instruction(cpu_env); \
- ctx->bstate = BS_EXCP; \
- return; \
+ if (ctx->envflags & DELAY_SLOT_MASK) { \
+ goto do_illegal_slot; \
}
#define CHECK_PRIVILEGED \
@@ -1820,10 +1817,12 @@ static void _decode_opc(DisasContext * ctx)
ctx->opcode, ctx->pc);
fflush(stderr);
#endif
- gen_save_cpu_state(ctx, true);
if (ctx->envflags & DELAY_SLOT_MASK) {
+ do_illegal_slot:
+ gen_save_cpu_state(ctx, true);
gen_helper_raise_slot_illegal_instruction(cpu_env);
} else {
+ gen_save_cpu_state(ctx, true);
gen_helper_raise_illegal_instruction(cpu_env);
}
ctx->bstate = BS_EXCP;
--
2.9.4
- [Qemu-devel] [PATCH v2 13/27] target/sh4: Hoist fp register bank selection, (continued)
- [Qemu-devel] [PATCH v2 13/27] target/sh4: Hoist fp register bank selection, Richard Henderson, 2017/07/06
- [Qemu-devel] [PATCH v2 14/27] target/sh4: Eliminate unused XREG macro, Richard Henderson, 2017/07/06
- [Qemu-devel] [PATCH v2 15/27] target/sh4: Merge DREG into fpr64 routines, Richard Henderson, 2017/07/06
- [Qemu-devel] [PATCH v2 16/27] target/sh4: Load/store Dr as 64-bit quantities, Richard Henderson, 2017/07/06
- [Qemu-devel] [PATCH v2 17/27] target/sh4: Simplify 64-bit fp reg-reg move, Richard Henderson, 2017/07/06
- [Qemu-devel] [PATCH v2 18/27] target/sh4: Unify code for CHECK_NOT_DELAY_SLOT,
Richard Henderson <=
- [Qemu-devel] [PATCH v2 19/27] target/sh4: Unify code for CHECK_PRIVILEGED, Richard Henderson, 2017/07/06
- [Qemu-devel] [PATCH v2 20/27] target/sh4: Unify code for CHECK_FPU_ENABLED, Richard Henderson, 2017/07/06
- [Qemu-devel] [PATCH v2 21/27] target/sh4: Tidy misc illegal insn checks, Richard Henderson, 2017/07/06