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authorRichard Henderson <richard.henderson@linaro.org>2023-02-24 16:15:18 -1000
committerRichard Henderson <richard.henderson@linaro.org>2023-03-05 13:44:07 -0800
commit2f2e911d0ca27e071c0d62b2e5f0a2ee6e5967f4 (patch)
tree00e5c04c43b003ddc0abdbcebd3a0fd9295ab61e /tcg
parent3470867b3b2774f78ae7ab3a0ca4259694e2ddee (diff)
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tcg: Remove tcg_check_temp_count, tcg_clear_temp_count
Since all temps allocated by guest front-ends are now TEMP_TB, and we don't recycle TEMP_TB, there's no point in requiring that the front-ends free the temps at all. Begin by dropping the inner-most checks that all temps have been freed. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg')
-rw-r--r--tcg/tcg.c54
1 files changed, 8 insertions, 46 deletions
diff --git a/tcg/tcg.c b/tcg/tcg.c
index f9e1afd..e4fccbd 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -1273,7 +1273,7 @@ TCGTemp *tcg_temp_new_internal(TCGType type, TCGTempKind kind)
ts->temp_allocated = 1;
tcg_debug_assert(ts->base_type == type);
tcg_debug_assert(ts->kind == kind);
- goto done;
+ return ts;
}
} else {
tcg_debug_assert(kind == TEMP_TB);
@@ -1317,11 +1317,6 @@ TCGTemp *tcg_temp_new_internal(TCGType type, TCGTempKind kind)
ts2->kind = kind;
}
}
-
- done:
-#if defined(CONFIG_DEBUG_TCG)
- s->temps_in_use++;
-#endif
return ts;
}
@@ -1366,30 +1361,18 @@ void tcg_temp_free_internal(TCGTemp *ts)
switch (ts->kind) {
case TEMP_CONST:
- /*
- * In order to simplify users of tcg_constant_*,
- * silently ignore free.
- */
- return;
- case TEMP_EBB:
case TEMP_TB:
+ /* Silently ignore free. */
+ break;
+ case TEMP_EBB:
+ tcg_debug_assert(ts->temp_allocated != 0);
+ ts->temp_allocated = 0;
+ set_bit(temp_idx(ts), s->free_temps[ts->base_type].l);
break;
default:
+ /* It never made sense to free TEMP_FIXED or TEMP_GLOBAL. */
g_assert_not_reached();
}
-
- tcg_debug_assert(ts->temp_allocated != 0);
- ts->temp_allocated = 0;
-
-#if defined(CONFIG_DEBUG_TCG)
- assert(s->temps_in_use > 0);
- s->temps_in_use--;
-#endif
-
- if (ts->kind == TEMP_EBB) {
- int idx = temp_idx(ts);
- set_bit(idx, s->free_temps[ts->base_type].l);
- }
}
TCGTemp *tcg_constant_internal(TCGType type, int64_t val)
@@ -1477,27 +1460,6 @@ TCGv_i64 tcg_const_i64(int64_t val)
return t0;
}
-#if defined(CONFIG_DEBUG_TCG)
-void tcg_clear_temp_count(void)
-{
- TCGContext *s = tcg_ctx;
- s->temps_in_use = 0;
-}
-
-int tcg_check_temp_count(void)
-{
- TCGContext *s = tcg_ctx;
- if (s->temps_in_use) {
- /* Clear the count so that we don't give another
- * warning immediately next time around.
- */
- s->temps_in_use = 0;
- return 1;
- }
- return 0;
-}
-#endif
-
/* Return true if OP may appear in the opcode stream.
Test the runtime variable that controls each opcode. */
bool tcg_op_supported(TCGOpcode op)