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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL v2 16/27] tcg/aarch64: Use 'z' constraint
Date: Mon, 17 Feb 2025 11:29:57 -0800
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Note that 'Z' is still used for addsub2.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/aarch64/tcg-target-con-set.h | 12 ++++-----
tcg/aarch64/tcg-target.c.inc | 46 ++++++++++++++------------------
2 files changed, 26 insertions(+), 32 deletions(-)
diff --git a/tcg/aarch64/tcg-target-con-set.h b/tcg/aarch64/tcg-target-con-=
set.h
index 44fcc1206e..1281e5efc0 100644
--- a/tcg/aarch64/tcg-target-con-set.h
+++ b/tcg/aarch64/tcg-target-con-set.h
@@ -11,27 +11,27 @@
*/
C_O0_I1(r)
C_O0_I2(r, rC)
-C_O0_I2(rZ, r)
+C_O0_I2(rz, r)
C_O0_I2(w, r)
-C_O0_I3(rZ, rZ, r)
+C_O0_I3(rz, rz, r)
C_O1_I1(r, r)
C_O1_I1(w, r)
C_O1_I1(w, w)
C_O1_I1(w, wr)
-C_O1_I2(r, 0, rZ)
+C_O1_I2(r, 0, rz)
C_O1_I2(r, r, r)
C_O1_I2(r, r, rA)
C_O1_I2(r, r, rAL)
C_O1_I2(r, r, rC)
C_O1_I2(r, r, ri)
C_O1_I2(r, r, rL)
-C_O1_I2(r, rZ, rZ)
+C_O1_I2(r, rz, rz)
C_O1_I2(w, 0, w)
C_O1_I2(w, w, w)
C_O1_I2(w, w, wN)
C_O1_I2(w, w, wO)
C_O1_I2(w, w, wZ)
C_O1_I3(w, w, w, w)
-C_O1_I4(r, r, rC, rZ, rZ)
+C_O1_I4(r, r, rC, rz, rz)
C_O2_I1(r, r, r)
-C_O2_I4(r, r, rZ, rZ, rA, rMZ)
+C_O2_I4(r, r, rz, rz, rA, rMZ)
diff --git a/tcg/aarch64/tcg-target.c.inc b/tcg/aarch64/tcg-target.c.inc
index 6f383c1592..4645242d85 100644
--- a/tcg/aarch64/tcg-target.c.inc
+++ b/tcg/aarch64/tcg-target.c.inc
@@ -2125,10 +2125,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,=
TCGType ext,
TCGArg a2 =3D args[2];
int c2 =3D const_args[2];
=20
- /* Some operands are defined with "rZ" constraint, a register or
- the zero register. These need not actually test args[I] =3D=3D 0. =
*/
-#define REG0(I) (const_args[I] ? TCG_REG_XZR : (TCGReg)args[I])
-
switch (opc) {
case INDEX_op_goto_ptr:
tcg_out_insn(s, 3207, BR, a0);
@@ -2171,18 +2167,18 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc=
, TCGType ext,
=20
case INDEX_op_st8_i32:
case INDEX_op_st8_i64:
- tcg_out_ldst(s, I3312_STRB, REG0(0), a1, a2, 0);
+ tcg_out_ldst(s, I3312_STRB, a0, a1, a2, 0);
break;
case INDEX_op_st16_i32:
case INDEX_op_st16_i64:
- tcg_out_ldst(s, I3312_STRH, REG0(0), a1, a2, 1);
+ tcg_out_ldst(s, I3312_STRH, a0, a1, a2, 1);
break;
case INDEX_op_st_i32:
case INDEX_op_st32_i64:
- tcg_out_ldst(s, I3312_STRW, REG0(0), a1, a2, 2);
+ tcg_out_ldst(s, I3312_STRW, a0, a1, a2, 2);
break;
case INDEX_op_st_i64:
- tcg_out_ldst(s, I3312_STRX, REG0(0), a1, a2, 3);
+ tcg_out_ldst(s, I3312_STRX, a0, a1, a2, 3);
break;
=20
case INDEX_op_add_i32:
@@ -2395,7 +2391,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, =
TCGType ext,
/* FALLTHRU */
case INDEX_op_movcond_i64:
tcg_out_cmp(s, ext, args[5], a1, a2, c2);
- tcg_out_insn(s, 3506, CSEL, ext, a0, REG0(3), REG0(4), args[5]);
+ tcg_out_insn(s, 3506, CSEL, ext, a0, args[3], args[4], args[5]);
break;
=20
case INDEX_op_qemu_ld_i32:
@@ -2404,13 +2400,13 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc=
, TCGType ext,
break;
case INDEX_op_qemu_st_i32:
case INDEX_op_qemu_st_i64:
- tcg_out_qemu_st(s, REG0(0), a1, a2, ext);
+ tcg_out_qemu_st(s, a0, a1, a2, ext);
break;
case INDEX_op_qemu_ld_i128:
tcg_out_qemu_ldst_i128(s, a0, a1, a2, args[3], true);
break;
case INDEX_op_qemu_st_i128:
- tcg_out_qemu_ldst_i128(s, REG0(0), REG0(1), a2, args[3], false);
+ tcg_out_qemu_ldst_i128(s, a0, a1, a2, args[3], false);
break;
=20
case INDEX_op_bswap64_i64:
@@ -2439,7 +2435,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, =
TCGType ext,
=20
case INDEX_op_deposit_i64:
case INDEX_op_deposit_i32:
- tcg_out_dep(s, ext, a0, REG0(2), args[3], args[4]);
+ tcg_out_dep(s, ext, a0, a2, args[3], args[4]);
break;
=20
case INDEX_op_extract_i64:
@@ -2459,25 +2455,25 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc=
, TCGType ext,
=20
case INDEX_op_extract2_i64:
case INDEX_op_extract2_i32:
- tcg_out_extr(s, ext, a0, REG0(2), REG0(1), args[3]);
+ tcg_out_extr(s, ext, a0, a2, a1, args[3]);
break;
=20
case INDEX_op_add2_i32:
- tcg_out_addsub2(s, TCG_TYPE_I32, a0, a1, REG0(2), REG0(3),
+ tcg_out_addsub2(s, TCG_TYPE_I32, a0, a1, a2, args[3],
(int32_t)args[4], args[5], const_args[4],
const_args[5], false);
break;
case INDEX_op_add2_i64:
- tcg_out_addsub2(s, TCG_TYPE_I64, a0, a1, REG0(2), REG0(3), args[4],
+ tcg_out_addsub2(s, TCG_TYPE_I64, a0, a1, a2, args[3], args[4],
args[5], const_args[4], const_args[5], false);
break;
case INDEX_op_sub2_i32:
- tcg_out_addsub2(s, TCG_TYPE_I32, a0, a1, REG0(2), REG0(3),
+ tcg_out_addsub2(s, TCG_TYPE_I32, a0, a1, a2, args[3],
(int32_t)args[4], args[5], const_args[4],
const_args[5], true);
break;
case INDEX_op_sub2_i64:
- tcg_out_addsub2(s, TCG_TYPE_I64, a0, a1, REG0(2), REG0(3), args[4],
+ tcg_out_addsub2(s, TCG_TYPE_I64, a0, a1, a2, args[3], args[4],
args[5], const_args[4], const_args[5], true);
break;
=20
@@ -2513,8 +2509,6 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, =
TCGType ext,
default:
g_assert_not_reached();
}
-
-#undef REG0
}
=20
static void tcg_out_vec_op(TCGContext *s, TCGOpcode opc,
@@ -3010,7 +3004,7 @@ tcg_target_op_def(TCGOpcode op, TCGType type, unsigne=
d flags)
case INDEX_op_st16_i64:
case INDEX_op_st32_i64:
case INDEX_op_st_i64:
- return C_O0_I2(rZ, r);
+ return C_O0_I2(rz, r);
=20
case INDEX_op_add_i32:
case INDEX_op_add_i64:
@@ -3076,7 +3070,7 @@ tcg_target_op_def(TCGOpcode op, TCGType type, unsigne=
d flags)
=20
case INDEX_op_movcond_i32:
case INDEX_op_movcond_i64:
- return C_O1_I4(r, r, rC, rZ, rZ);
+ return C_O1_I4(r, r, rC, rz, rz);
=20
case INDEX_op_qemu_ld_i32:
case INDEX_op_qemu_ld_i64:
@@ -3085,23 +3079,23 @@ tcg_target_op_def(TCGOpcode op, TCGType type, unsig=
ned flags)
return C_O2_I1(r, r, r);
case INDEX_op_qemu_st_i32:
case INDEX_op_qemu_st_i64:
- return C_O0_I2(rZ, r);
+ return C_O0_I2(rz, r);
case INDEX_op_qemu_st_i128:
- return C_O0_I3(rZ, rZ, r);
+ return C_O0_I3(rz, rz, r);
=20
case INDEX_op_deposit_i32:
case INDEX_op_deposit_i64:
- return C_O1_I2(r, 0, rZ);
+ return C_O1_I2(r, 0, rz);
=20
case INDEX_op_extract2_i32:
case INDEX_op_extract2_i64:
- return C_O1_I2(r, rZ, rZ);
+ return C_O1_I2(r, rz, rz);
=20
case INDEX_op_add2_i32:
case INDEX_op_add2_i64:
case INDEX_op_sub2_i32:
case INDEX_op_sub2_i64:
- return C_O2_I4(r, r, rZ, rZ, rA, rMZ);
+ return C_O2_I4(r, r, rz, rz, rA, rMZ);
=20
case INDEX_op_add_vec:
case INDEX_op_sub_vec:
--=20
2.43.0