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[PATCH v2 11/29] tcg/ppc: Support bswap flags
From: |
Richard Henderson |
Subject: |
[PATCH v2 11/29] tcg/ppc: Support bswap flags |
Date: |
Mon, 21 Jun 2021 16:18:31 -0700 |
For INDEX_op_bswap32_i32, pass 0 for flags: input not zero-extended,
output does not need extension within the host 64-bit register.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/ppc/tcg-target.c.inc | 22 ++++++++++++++++------
1 file changed, 16 insertions(+), 6 deletions(-)
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index da6d10722e..33f0139519 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -789,7 +789,7 @@ static inline void tcg_out_sari64(TCGContext *s, TCGReg
dst, TCGReg src, int c)
tcg_out32(s, SRADI | RA(dst) | RS(src) | SH(c & 0x1f) | ((c >> 4) & 2));
}
-static void tcg_out_bswap16(TCGContext *s, TCGReg dst, TCGReg src)
+static void tcg_out_bswap16(TCGContext *s, TCGReg dst, TCGReg src, int flags)
{
TCGReg tmp = dst == src ? TCG_REG_R0 : dst;
@@ -804,10 +804,14 @@ static void tcg_out_bswap16(TCGContext *s, TCGReg dst,
TCGReg src)
/* tmp = dep(tmp, rol32(src, 8), 0x0000ff00) = 000000dc */
tcg_out_rlw(s, RLWIMI, tmp, src, 8, 16, 23);
- tcg_out_mov(s, TCG_TYPE_REG, dst, tmp);
+ if (flags & TCG_BSWAP_OS) {
+ tcg_out_ext16s(s, dst, tmp);
+ } else {
+ tcg_out_mov(s, TCG_TYPE_REG, dst, tmp);
+ }
}
-static void tcg_out_bswap32(TCGContext *s, TCGReg dst, TCGReg src)
+static void tcg_out_bswap32(TCGContext *s, TCGReg dst, TCGReg src, int flags)
{
TCGReg tmp = dst == src ? TCG_REG_R0 : dst;
@@ -825,7 +829,11 @@ static void tcg_out_bswap32(TCGContext *s, TCGReg dst,
TCGReg src)
/* tmp = dep(tmp, rol32(src, 24), 0x0000ff00) = 0000dcba */
tcg_out_rlw(s, RLWIMI, tmp, src, 24, 16, 23);
- tcg_out_mov(s, TCG_TYPE_REG, dst, tmp);
+ if (flags & TCG_BSWAP_OS) {
+ tcg_out_ext32s(s, dst, tmp);
+ } else {
+ tcg_out_mov(s, TCG_TYPE_REG, dst, tmp);
+ }
}
static void tcg_out_bswap64(TCGContext *s, TCGReg dst, TCGReg src)
@@ -2851,11 +2859,13 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_bswap16_i32:
case INDEX_op_bswap16_i64:
- tcg_out_bswap16(s, args[0], args[1]);
+ tcg_out_bswap16(s, args[0], args[1], args[2]);
break;
case INDEX_op_bswap32_i32:
+ tcg_out_bswap32(s, args[0], args[1], 0);
+ break;
case INDEX_op_bswap32_i64:
- tcg_out_bswap32(s, args[0], args[1]);
+ tcg_out_bswap32(s, args[0], args[1], args[2]);
break;
case INDEX_op_bswap64_i64:
tcg_out_bswap64(s, args[0], args[1]);
--
2.25.1
- [PATCH v2 01/29] tcg: Add flags argument to bswap opcodes, (continued)
- [PATCH v2 01/29] tcg: Add flags argument to bswap opcodes, Richard Henderson, 2021/06/21
- [PATCH v2 03/29] tcg/aarch64: Merge tcg_out_rev{16,32,64}, Richard Henderson, 2021/06/21
- [PATCH v2 06/29] tcg/ppc: Split out tcg_out_ext{8,16,32}s, Richard Henderson, 2021/06/21
- [PATCH v2 04/29] tcg/aarch64: Support bswap flags, Richard Henderson, 2021/06/21
- [PATCH v2 08/29] tcg/ppc: Split out tcg_out_bswap16, Richard Henderson, 2021/06/21
- [PATCH v2 12/29] tcg/ppc: Use power10 byte-reverse instructions, Richard Henderson, 2021/06/21
- [PATCH v2 07/29] tcg/ppc: Split out tcg_out_sari{32,64}, Richard Henderson, 2021/06/21
- [PATCH v2 05/29] tcg/arm: Support bswap flags, Richard Henderson, 2021/06/21
- [PATCH v2 10/29] tcg/ppc: Split out tcg_out_bswap64, Richard Henderson, 2021/06/21
- [PATCH v2 09/29] tcg/ppc: Split out tcg_out_bswap32, Richard Henderson, 2021/06/21
- [PATCH v2 11/29] tcg/ppc: Support bswap flags,
Richard Henderson <=
- [PATCH v2 14/29] tcg/mips: Support bswap flags in tcg_out_bswap16, Richard Henderson, 2021/06/21
- [PATCH v2 16/29] tcg/tci: Support bswap flags, Richard Henderson, 2021/06/21
- [PATCH v2 15/29] tcg/mips: Support bswap flags in tcg_out_bswap32, Richard Henderson, 2021/06/21
- [PATCH v2 13/29] tcg/s390: Support bswap flags, Richard Henderson, 2021/06/21
- [PATCH v2 17/29] tcg: Handle new bswap flags during optimize, Richard Henderson, 2021/06/21
- [PATCH v2 22/29] target/arm: Improve vector REV, Richard Henderson, 2021/06/21
- [PATCH v2 24/29] target/i386: Improve bswap translation, Richard Henderson, 2021/06/21
- [PATCH v2 19/29] tcg: Make use of bswap flags in tcg_gen_qemu_ld_*, Richard Henderson, 2021/06/21