aboutsummaryrefslogtreecommitdiff
path: root/target-cris/translate.c
diff options
context:
space:
mode:
authorMichael S. Tsirkin <mst@redhat.com>2011-01-10 13:43:48 +0200
committerMichael S. Tsirkin <mst@redhat.com>2011-01-10 13:43:48 +0200
commit6107ff12922e5508a44b376b40a3041810cb00d2 (patch)
tree56098d53043a8fcdd01dbf0dca565ceab09f95b3 /target-cris/translate.c
parentbe92bbf73dfd7d8a4786dc5f6c71590f4fbc5a32 (diff)
parent8aaf42ed0f203da63860b0a3ab3ff2bdfe9b4cb0 (diff)
Merge remote branch 'origin/master' into pci
Diffstat (limited to 'target-cris/translate.c')
-rw-r--r--target-cris/translate.c48
1 files changed, 23 insertions, 25 deletions
diff --git a/target-cris/translate.c b/target-cris/translate.c
index 4e4606cb25..5184155302 100644
--- a/target-cris/translate.c
+++ b/target-cris/translate.c
@@ -577,20 +577,15 @@ static inline void t_gen_swapr(TCGv d, TCGv s)
static void t_gen_cc_jmp(TCGv pc_true, TCGv pc_false)
{
- TCGv btaken;
int l1;
l1 = gen_new_label();
- btaken = tcg_temp_new();
/* Conditional jmp. */
- tcg_gen_mov_tl(btaken, env_btaken);
tcg_gen_mov_tl(env_pc, pc_false);
- tcg_gen_brcondi_tl(TCG_COND_EQ, btaken, 0, l1);
+ tcg_gen_brcondi_tl(TCG_COND_EQ, env_btaken, 0, l1);
tcg_gen_mov_tl(env_pc, pc_true);
gen_set_label(l1);
-
- tcg_temp_free(btaken);
}
static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest)
@@ -1134,7 +1129,7 @@ static void cris_store_direct_jmp(DisasContext *dc)
/* Store the direct jmp state into the cpu-state. */
if (dc->jmp == JMP_DIRECT) {
tcg_gen_movi_tl(env_btarget, dc->jmp_pc);
- tcg_gen_movi_tl(env_btaken, 1);
+ dc->jmp = JMP_INDIRECT;
}
}
@@ -1144,17 +1139,11 @@ static void cris_prepare_cc_branch (DisasContext *dc,
/* This helps us re-schedule the micro-code to insns in delay-slots
before the actual jump. */
dc->delayed_branch = 2;
+ dc->jmp = JMP_DIRECT;
dc->jmp_pc = dc->pc + offset;
- if (cond != CC_A)
- {
- dc->jmp = JMP_INDIRECT;
- gen_tst_cc (dc, env_btaken, cond);
- tcg_gen_movi_tl(env_btarget, dc->jmp_pc);
- } else {
- /* Allow chaining. */
- dc->jmp = JMP_DIRECT;
- }
+ gen_tst_cc (dc, env_btaken, cond);
+ tcg_gen_movi_tl(env_btarget, dc->jmp_pc);
}
@@ -1166,8 +1155,7 @@ static inline void cris_prepare_jmp (DisasContext *dc, unsigned int type)
before the actual jump. */
dc->delayed_branch = 2;
dc->jmp = type;
- if (type == JMP_INDIRECT)
- tcg_gen_movi_tl(env_btaken, 1);
+ tcg_gen_movi_tl(env_btaken, 1);
}
static void gen_load64(DisasContext *dc, TCGv_i64 dst, TCGv addr)
@@ -3320,8 +3308,24 @@ gen_intermediate_code_internal(CPUState *env, TranslationBlock *tb,
if (tb->flags & 7)
t_gen_mov_env_TN(dslot,
tcg_const_tl(0));
+ if (dc->cpustate_changed || !dc->flagx_known
+ || (dc->flags_x != (tb->flags & X_FLAG))) {
+ cris_store_direct_jmp(dc);
+ }
if (dc->jmp == JMP_DIRECT) {
- dc->is_jmp = DISAS_NEXT;
+ int l1;
+
+ l1 = gen_new_label();
+ cris_evaluate_flags(dc);
+
+ /* Conditional jmp. */
+ tcg_gen_brcondi_tl(TCG_COND_EQ,
+ env_btaken, 0, l1);
+ gen_goto_tb(dc, 1, dc->jmp_pc);
+ gen_set_label(l1);
+ gen_goto_tb(dc, 0, dc->pc);
+ dc->is_jmp = DISAS_TB_JUMP;
+ dc->jmp = JMP_NOJMP;
} else {
t_gen_cc_jmp(env_btarget,
tcg_const_tl(dc->pc));
@@ -3341,16 +3345,10 @@ gen_intermediate_code_internal(CPUState *env, TranslationBlock *tb,
&& (dc->pc < next_page_start)
&& num_insns < max_insns);
- if (dc->tb_flags != orig_flags) {
- dc->cpustate_changed = 1;
- }
-
if (dc->clear_locked_irq)
t_gen_mov_env_TN(locked_irq, tcg_const_tl(0));
npc = dc->pc;
- if (dc->jmp == JMP_DIRECT && !dc->delayed_branch)
- npc = dc->jmp_pc;
if (tb->cflags & CF_LAST_IO)
gen_io_end();