From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Luis Pires" <luis.pires@eldorado.org.br>,
"Philippe Mathieu-Daudé" <f4bug@amsat.org>
Subject: [PULL 27/56] tcg/optimize: Split out fold_movcond
Date: Wed, 27 Oct 2021 19:41:02 -0700 [thread overview]
Message-ID: <20211028024131.1492790-28-richard.henderson@linaro.org> (raw)
In-Reply-To: <20211028024131.1492790-1-richard.henderson@linaro.org>
Reviewed-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/optimize.c | 56 ++++++++++++++++++++++++++++----------------------
1 file changed, 31 insertions(+), 25 deletions(-)
diff --git a/tcg/optimize.c b/tcg/optimize.c
index 9d1d045363..110b3d1cc2 100644
--- a/tcg/optimize.c
+++ b/tcg/optimize.c
@@ -922,6 +922,34 @@ static bool fold_mb(OptContext *ctx, TCGOp *op)
return true;
}
+static bool fold_movcond(OptContext *ctx, TCGOp *op)
+{
+ TCGOpcode opc = op->opc;
+ TCGCond cond = op->args[5];
+ int i = do_constant_folding_cond(opc, op->args[1], op->args[2], cond);
+
+ if (i >= 0) {
+ return tcg_opt_gen_mov(ctx, op, op->args[0], op->args[4 - i]);
+ }
+
+ if (arg_is_const(op->args[3]) && arg_is_const(op->args[4])) {
+ uint64_t tv = arg_info(op->args[3])->val;
+ uint64_t fv = arg_info(op->args[4])->val;
+
+ opc = (opc == INDEX_op_movcond_i32
+ ? INDEX_op_setcond_i32 : INDEX_op_setcond_i64);
+
+ if (tv == 1 && fv == 0) {
+ op->opc = opc;
+ op->args[3] = cond;
+ } else if (fv == 1 && tv == 0) {
+ op->opc = opc;
+ op->args[3] = tcg_invert_cond(cond);
+ }
+ }
+ return false;
+}
+
static bool fold_mul(OptContext *ctx, TCGOp *op)
{
return fold_const2(ctx, op);
@@ -1715,31 +1743,6 @@ void tcg_optimize(TCGContext *s)
}
break;
- CASE_OP_32_64(movcond):
- i = do_constant_folding_cond(opc, op->args[1],
- op->args[2], op->args[5]);
- if (i >= 0) {
- tcg_opt_gen_mov(&ctx, op, op->args[0], op->args[4 - i]);
- continue;
- }
- if (arg_is_const(op->args[3]) && arg_is_const(op->args[4])) {
- uint64_t tv = arg_info(op->args[3])->val;
- uint64_t fv = arg_info(op->args[4])->val;
- TCGCond cond = op->args[5];
-
- if (fv == 1 && tv == 0) {
- cond = tcg_invert_cond(cond);
- } else if (!(tv == 1 && fv == 0)) {
- break;
- }
- op->args[3] = cond;
- op->opc = opc = (opc == INDEX_op_movcond_i32
- ? INDEX_op_setcond_i32
- : INDEX_op_setcond_i64);
- }
- break;
-
-
default:
break;
@@ -1791,6 +1794,9 @@ void tcg_optimize(TCGContext *s)
case INDEX_op_mb:
done = fold_mb(&ctx, op);
break;
+ CASE_OP_32_64(movcond):
+ done = fold_movcond(&ctx, op);
+ break;
CASE_OP_32_64(mul):
done = fold_mul(&ctx, op);
break;
--
2.25.1
next prev parent reply other threads:[~2021-10-28 3:07 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-28 2:40 [PULL 00/56] tcg patch queue Richard Henderson
2021-10-28 2:40 ` [PULL 01/56] qemu/int128: Add int128_{not,xor} Richard Henderson
2021-10-28 2:40 ` [PULL 02/56] host-utils: move checks out of divu128/divs128 Richard Henderson
2021-10-28 2:40 ` [PULL 03/56] host-utils: move udiv_qrnnd() to host-utils Richard Henderson
2021-10-28 2:40 ` [PULL 04/56] host-utils: add 128-bit quotient support to divu128/divs128 Richard Henderson
2021-10-28 2:40 ` [PULL 05/56] host-utils: add unit tests for divu128/divs128 Richard Henderson
2021-10-28 2:40 ` [PULL 06/56] tcg/optimize: Rename "mask" to "z_mask" Richard Henderson
2021-10-28 2:40 ` [PULL 07/56] tcg/optimize: Split out OptContext Richard Henderson
2021-10-28 2:40 ` [PULL 08/56] tcg/optimize: Remove do_default label Richard Henderson
2021-10-28 2:40 ` [PULL 09/56] tcg/optimize: Change tcg_opt_gen_{mov,movi} interface Richard Henderson
2021-10-28 2:40 ` [PULL 10/56] tcg/optimize: Move prev_mb into OptContext Richard Henderson
2021-10-28 2:40 ` [PULL 11/56] tcg/optimize: Split out init_arguments Richard Henderson
2021-10-28 2:40 ` [PULL 12/56] tcg/optimize: Split out copy_propagate Richard Henderson
2021-10-28 2:40 ` [PULL 13/56] tcg/optimize: Split out fold_call Richard Henderson
2021-10-28 2:40 ` [PULL 14/56] tcg/optimize: Drop nb_oargs, nb_iargs locals Richard Henderson
2021-10-28 2:40 ` [PULL 15/56] tcg/optimize: Change fail return for do_constant_folding_cond* Richard Henderson
2021-10-28 2:40 ` [PULL 16/56] tcg/optimize: Return true from tcg_opt_gen_{mov,movi} Richard Henderson
2021-10-28 2:40 ` [PULL 17/56] tcg/optimize: Split out finish_folding Richard Henderson
2021-10-28 2:40 ` [PULL 18/56] tcg/optimize: Use a boolean to avoid a mass of continues Richard Henderson
2021-10-28 2:40 ` [PULL 19/56] tcg/optimize: Split out fold_mb, fold_qemu_{ld,st} Richard Henderson
2021-10-28 2:40 ` [PULL 20/56] tcg/optimize: Split out fold_const{1,2} Richard Henderson
2021-10-28 2:40 ` [PULL 21/56] tcg/optimize: Split out fold_setcond2 Richard Henderson
2021-10-28 2:40 ` [PULL 22/56] tcg/optimize: Split out fold_brcond2 Richard Henderson
2021-10-28 2:40 ` [PULL 23/56] tcg/optimize: Split out fold_brcond Richard Henderson
2021-10-28 2:40 ` [PULL 24/56] tcg/optimize: Split out fold_setcond Richard Henderson
2021-10-28 2:41 ` [PULL 25/56] tcg/optimize: Split out fold_mulu2_i32 Richard Henderson
2021-10-28 2:41 ` [PULL 26/56] tcg/optimize: Split out fold_addsub2_i32 Richard Henderson
2021-10-28 2:41 ` Richard Henderson [this message]
2021-10-28 2:41 ` [PULL 28/56] tcg/optimize: Split out fold_extract2 Richard Henderson
2021-10-28 2:41 ` [PULL 29/56] tcg/optimize: Split out fold_extract, fold_sextract Richard Henderson
2021-10-28 2:41 ` [PULL 30/56] tcg/optimize: Split out fold_deposit Richard Henderson
2021-10-28 2:41 ` [PULL 31/56] tcg/optimize: Split out fold_count_zeros Richard Henderson
2021-10-28 2:41 ` [PULL 32/56] tcg/optimize: Split out fold_bswap Richard Henderson
2021-10-28 2:41 ` [PULL 33/56] tcg/optimize: Split out fold_dup, fold_dup2 Richard Henderson
2021-10-28 2:41 ` [PULL 34/56] tcg/optimize: Split out fold_mov Richard Henderson
2021-10-28 2:41 ` [PULL 35/56] tcg/optimize: Split out fold_xx_to_i Richard Henderson
2021-10-28 2:41 ` [PULL 36/56] tcg/optimize: Split out fold_xx_to_x Richard Henderson
2021-10-28 2:41 ` [PULL 37/56] tcg/optimize: Split out fold_xi_to_i Richard Henderson
2021-10-28 2:41 ` [PULL 38/56] tcg/optimize: Add type to OptContext Richard Henderson
2021-10-28 2:41 ` [PULL 39/56] tcg/optimize: Split out fold_to_not Richard Henderson
2021-10-28 2:41 ` [PULL 40/56] tcg/optimize: Split out fold_sub_to_neg Richard Henderson
2021-10-28 2:41 ` [PULL 41/56] tcg/optimize: Split out fold_xi_to_x Richard Henderson
2021-10-28 2:41 ` [PULL 42/56] tcg/optimize: Split out fold_ix_to_i Richard Henderson
2021-10-28 2:41 ` [PULL 43/56] tcg/optimize: Split out fold_masks Richard Henderson
2021-10-28 2:41 ` [PULL 44/56] tcg/optimize: Expand fold_mulu2_i32 to all 4-arg multiplies Richard Henderson
2021-10-28 2:41 ` [PULL 45/56] tcg/optimize: Expand fold_addsub2_i32 to 64-bit ops Richard Henderson
2021-10-28 2:41 ` [PULL 46/56] tcg/optimize: Sink commutative operand swapping into fold functions Richard Henderson
2021-10-28 2:41 ` [PULL 47/56] tcg/optimize: Stop forcing z_mask to "garbage" for 32-bit values Richard Henderson
2021-10-28 2:41 ` [PULL 48/56] tcg/optimize: Use fold_xx_to_i for orc Richard Henderson
2021-10-28 2:41 ` [PULL 49/56] tcg/optimize: Use fold_xi_to_x for mul Richard Henderson
2021-10-28 2:41 ` [PULL 50/56] tcg/optimize: Use fold_xi_to_x for div Richard Henderson
2021-10-28 2:41 ` [PULL 51/56] tcg/optimize: Use fold_xx_to_i for rem Richard Henderson
2021-10-28 2:41 ` [PULL 52/56] tcg/optimize: Optimize sign extensions Richard Henderson
2021-10-28 2:41 ` [PULL 53/56] tcg/optimize: Propagate sign info for logical operations Richard Henderson
2021-10-28 2:41 ` [PULL 54/56] tcg/optimize: Propagate sign info for setcond Richard Henderson
2021-10-28 2:41 ` [PULL 55/56] tcg/optimize: Propagate sign info for bit counting Richard Henderson
2021-10-28 2:41 ` [PULL 56/56] tcg/optimize: Propagate sign info for shifting Richard Henderson
2021-10-28 14:51 ` [PULL 00/56] tcg patch queue Richard Henderson
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