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tcg: Change translator-side labels to a pointer

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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>
This commit is contained in:
Richard Henderson 2015-02-13 12:51:55 -08:00
parent 3f626793a2
commit 42a268c241
26 changed files with 280 additions and 282 deletions
Download patch file Download diff file Expand all files Collapse all files

25
tcg/tcg-op.c
View file

@ -275,19 +275,19 @@ void tcg_gen_sari_i32(TCGv_i32 ret, TCGv_i32 arg1, unsigned arg2)
}
}
void tcg_gen_brcond_i32(TCGCond cond, TCGv_i32 arg1, TCGv_i32 arg2, int label)
void tcg_gen_brcond_i32(TCGCond cond, TCGv_i32 arg1, TCGv_i32 arg2, TCGLabel *l)
{
if (cond == TCG_COND_ALWAYS) {
tcg_gen_br(label);
tcg_gen_br(l);
} else if (cond != TCG_COND_NEVER) {
tcg_gen_op4ii_i32(INDEX_op_brcond_i32, arg1, arg2, cond, label);
tcg_gen_op4ii_i32(INDEX_op_brcond_i32, arg1, arg2, cond, label_arg(l));
}
}
void tcg_gen_brcondi_i32(TCGCond cond, TCGv_i32 arg1, int32_t arg2, int label)
void tcg_gen_brcondi_i32(TCGCond cond, TCGv_i32 arg1, int32_t arg2, TCGLabel *l)
{
TCGv_i32 t0 = tcg_const_i32(arg2);
tcg_gen_brcond_i32(cond, arg1, t0, label);
tcg_gen_brcond_i32(cond, arg1, t0, l);
tcg_temp_free_i32(t0);
}
@ -1084,28 +1084,29 @@ void tcg_gen_sari_i64(TCGv_i64 ret, TCGv_i64 arg1, unsigned arg2)
}
}
void tcg_gen_brcond_i64(TCGCond cond, TCGv_i64 arg1, TCGv_i64 arg2, int label)
void tcg_gen_brcond_i64(TCGCond cond, TCGv_i64 arg1, TCGv_i64 arg2, TCGLabel *l)
{
if (cond == TCG_COND_ALWAYS) {
tcg_gen_br(label);
tcg_gen_br(l);
} else if (cond != TCG_COND_NEVER) {
if (TCG_TARGET_REG_BITS == 32) {
tcg_gen_op6ii_i32(INDEX_op_brcond2_i32, TCGV_LOW(arg1),
TCGV_HIGH(arg1), TCGV_LOW(arg2),
TCGV_HIGH(arg2), cond, label);
TCGV_HIGH(arg2), cond, label_arg(l));
} else {
tcg_gen_op4ii_i64(INDEX_op_brcond_i64, arg1, arg2, cond, label);
tcg_gen_op4ii_i64(INDEX_op_brcond_i64, arg1, arg2, cond,
label_arg(l));
}
}
}
void tcg_gen_brcondi_i64(TCGCond cond, TCGv_i64 arg1, int64_t arg2, int label)
void tcg_gen_brcondi_i64(TCGCond cond, TCGv_i64 arg1, int64_t arg2, TCGLabel *l)
{
if (cond == TCG_COND_ALWAYS) {
tcg_gen_br(label);
tcg_gen_br(l);
} else if (cond != TCG_COND_NEVER) {
TCGv_i64 t0 = tcg_const_i64(arg2);
tcg_gen_brcond_i64(cond, arg1, t0, label);
tcg_gen_brcond_i64(cond, arg1, t0, l);
tcg_temp_free_i64(t0);
}
}