diff mbox series

[v3,06/30] tcg: Use noinline for major tcg_gen_code subroutines

Message ID 20230225085945.1798188-7-richard.henderson@linaro.org
State Superseded
Headers show
Series tcg: Simplify temporary usage | expand

Commit Message

Richard Henderson Feb. 25, 2023, 8:59 a.m. UTC 
This makes it easier to assign blame with perf.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tcg/tcg.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)
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Patch

diff --git a/tcg/tcg.c b/tcg/tcg.c
index bf2af8b0fe..7ee935701a 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -2636,7 +2636,8 @@  TCGOp *tcg_op_insert_after(TCGContext *s, TCGOp *old_op,
 }
 
 /* Reachable analysis : remove unreachable code.  */
-static void reachable_code_pass(TCGContext *s)
+static void __attribute__((noinline))
+reachable_code_pass(TCGContext *s)
 {
     TCGOp *op, *op_next, *op_prev;
     bool dead = false;
@@ -2860,7 +2861,8 @@  static void la_cross_call(TCGContext *s, int nt)
 /* Liveness analysis : update the opc_arg_life array to tell if a
    given input arguments is dead. Instructions updating dead
    temporaries are removed. */
-static void liveness_pass_1(TCGContext *s)
+static void __attribute__((noinline))
+liveness_pass_1(TCGContext *s)
 {
     int nb_globals = s->nb_globals;
     int nb_temps = s->nb_temps;
@@ -3200,7 +3202,8 @@  static void liveness_pass_1(TCGContext *s)
 }
 
 /* Liveness analysis: Convert indirect regs to direct temporaries.  */
-static bool liveness_pass_2(TCGContext *s)
+static bool __attribute__((noinline))
+liveness_pass_2(TCGContext *s)
 {
     int nb_globals = s->nb_globals;
     int nb_temps, i;