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[Qemu-devel] [PATCH v3 18/30] target/sh4: Unify code for CHECK_NOT_DELAY
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH v3 18/30] target/sh4: Unify code for CHECK_NOT_DELAY_SLOT |
Date: |
Tue, 18 Jul 2017 10:02:43 -1000 |
We do not need to emit N copies of raising an exception.
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
Reviewed-by: Aurelien Jarno <address@hidden>
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 1164f73..b0a3d79 100644
--- a/target/sh4/translate.c
+++ b/target/sh4/translate.c
@@ -370,11 +370,8 @@ 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 \
@@ -1808,10 +1805,12 @@ 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 v3 06/30] target/sh4: Handle user-space atomics, (continued)
- [Qemu-devel] [PATCH v3 06/30] target/sh4: Handle user-space atomics, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 07/30] target/sh4: Recognize common gUSA sequences, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 08/30] linux-user/sh4: Notice gUSA regions during signal delivery, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 09/30] linux-user/sh4: Clean env->flags on signal boundaries, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 10/30] target/sh4: Hoist register bank selection, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 12/30] target/sh4: Pass DisasContext to fpr64 routines, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 11/30] target/sh4: Unify cpu_fregs into FREG, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 14/30] target/sh4: Eliminate unused XREG macro, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 16/30] target/sh4: Load/store Dr as 64-bit quantities, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 17/30] target/sh4: Simplify 64-bit fp reg-reg move, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 18/30] target/sh4: Unify code for CHECK_NOT_DELAY_SLOT,
Richard Henderson <=
- [Qemu-devel] [PATCH v3 15/30] target/sh4: Merge DREG into fpr64 routines, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 19/30] target/sh4: Unify code for CHECK_PRIVILEGED, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 20/30] target/sh4: Unify code for CHECK_FPU_ENABLED, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 21/30] target/sh4: Tidy misc illegal insn checks, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 22/30] target/sh4: Introduce CHECK_FPSCR_PR_*, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 24/30] target/sh4: Implement fpchg, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 23/30] target/sh4: Introduce CHECK_SH4A, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 25/30] target/sh4: Add missing FPSCR.PR == 0 checks, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 26/30] target/sh4: Implement fsrra, Richard Henderson, 2017/07/18
- [Qemu-devel] [PATCH v3 27/30] target/sh4: Use tcg_gen_lookup_and_goto_ptr, Richard Henderson, 2017/07/18