tcg: Change translator-side labels to a pointer

This is improved type checking for the translators -- it's no longer
possible to accidentally swap arguments to the branch functions.

Note that the code generating backends still manipulate labels as int.

With notable exceptions, the scope of the change is just a few lines
for each target, so it's not worth building extra machinery to do this
change in per-target increments.

Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Anthony Green <green@moxielogic.com>
Cc: Jia Liu <proljc@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>

1 files changed, 4 insertions, 4 deletions

diff --git a/target-m68k/translate.c b/target-m68k/translate.c
index a39b495..4959b97 100644
--- a/target-m68k/translate.c
+++ b/target-m68k/translate.c
@@ -679,7 +679,7 @@ static TCGv gen_ea(CPUM68KState *env, DisasContext *s, uint16_t insn,
 }
 
 /* This generates a conditional branch, clobbering all temporaries.  */
-static void gen_jmpcc(DisasContext *s, int cond, int l1)
+static void gen_jmpcc(DisasContext *s, int cond, TCGLabel *l1)
 {
     TCGv tmp;
 
@@ -784,7 +784,7 @@ static void gen_jmpcc(DisasContext *s, int cond, int l1)
 
 DISAS_INSN(scc)
 {
-    int l1;
+    TCGLabel *l1;
     int cond;
     TCGv reg;
 
@@ -1658,7 +1658,7 @@ DISAS_INSN(branch)
     int32_t offset;
     uint32_t base;
     int op;
-    int l1;
+    TCGLabel *l1;
 
     base = s->pc;
     op = (insn >> 8) & 0xf;
@@ -2395,7 +2395,7 @@ DISAS_INSN(fbcc)
     uint32_t offset;
     uint32_t addr;
     TCGv flag;
-    int l1;
+    TCGLabel *l1;
 
     addr = s->pc;
     offset = cpu_ldsw_code(env, s->pc);