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| author | Aurelien Jarno <aurelien@aurel32.net> | 2011-01-14 20:39:18 +0100 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2011-01-14 20:39:18 +0100 |
| commit | fd4bab102c14171f8a5a6b04def6434b75a658a2 (patch) | |
| tree | 33cfe40125bdc27090ab0acaffd3db31916c850f /target-sh4/translate.c | |
| parent | 17075f10ff9e2c8bd59ecbf9569421e437707e43 (diff) | |
| download | qemu-fd4bab102c14171f8a5a6b04def6434b75a658a2.tar.gz | |
target-sh4: optimize exceptions
As exception is not the normal path, don't bother saving PC, before
raising one, instead rely on code retranslation to get the CPU state.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-sh4/translate.c')
| -rw-r--r-- | target-sh4/translate.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/target-sh4/translate.c b/target-sh4/translate.c index 65b6ea413c..69d507d864 100644 --- a/target-sh4/translate.c +++ b/target-sh4/translate.c @@ -471,7 +471,6 @@ static inline void gen_store_fpr64 (TCGv_i64 t, int reg) #define CHECK_NOT_DELAY_SLOT \ if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) \ { \ - tcg_gen_movi_i32(cpu_pc, ctx->pc); \ gen_helper_raise_slot_illegal_instruction(); \ ctx->bstate = BS_EXCP; \ return; \ @@ -479,7 +478,6 @@ static inline void gen_store_fpr64 (TCGv_i64 t, int reg) #define CHECK_PRIVILEGED \ if (IS_USER(ctx)) { \ - tcg_gen_movi_i32(cpu_pc, ctx->pc); \ if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) { \ gen_helper_raise_slot_illegal_instruction(); \ } else { \ @@ -491,7 +489,6 @@ static inline void gen_store_fpr64 (TCGv_i64 t, int reg) #define CHECK_FPU_ENABLED \ if (ctx->flags & SR_FD) { \ - tcg_gen_movi_i32(cpu_pc, ctx->pc); \ if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) { \ gen_helper_raise_slot_fpu_disable(); \ } else { \ @@ -1380,7 +1377,6 @@ static void _decode_opc(DisasContext * ctx) { TCGv imm; CHECK_NOT_DELAY_SLOT - tcg_gen_movi_i32(cpu_pc, ctx->pc); imm = tcg_const_i32(B7_0); gen_helper_trapa(imm); tcg_temp_free(imm); @@ -1888,7 +1884,6 @@ static void _decode_opc(DisasContext * ctx) ctx->opcode, ctx->pc); fflush(stderr); #endif - tcg_gen_movi_i32(cpu_pc, ctx->pc); if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) { gen_helper_raise_slot_illegal_instruction(); } else { |