From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: Peter Maydell <peter.maydell@linaro.org>
Subject: [PATCH v2 04/29] tcg/aarch64: Support bswap flags
Date: Mon, 21 Jun 2021 16:18:24 -0700 [thread overview]
Message-ID: <20210621231849.1871164-5-richard.henderson@linaro.org> (raw)
In-Reply-To: <20210621231849.1871164-1-richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/aarch64/tcg-target.c.inc | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/tcg/aarch64/tcg-target.c.inc b/tcg/aarch64/tcg-target.c.inc
index 8619e54fca..72aa7e0e74 100644
--- a/tcg/aarch64/tcg-target.c.inc
+++ b/tcg/aarch64/tcg-target.c.inc
@@ -2177,12 +2177,24 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_rev(s, TCG_TYPE_I64, MO_64, a0, a1);
break;
case INDEX_op_bswap32_i64:
+ tcg_out_rev(s, TCG_TYPE_I32, MO_32, a0, a1);
+ if (a2 & TCG_BSWAP_OS) {
+ tcg_out_sxt(s, TCG_TYPE_I64, MO_32, a0, a0);
+ }
+ break;
case INDEX_op_bswap32_i32:
tcg_out_rev(s, TCG_TYPE_I32, MO_32, a0, a1);
break;
case INDEX_op_bswap16_i64:
case INDEX_op_bswap16_i32:
tcg_out_rev(s, TCG_TYPE_I32, MO_16, a0, a1);
+ if (a2 & TCG_BSWAP_OS) {
+ /* Output must be sign-extended. */
+ tcg_out_sxt(s, ext, MO_16, a0, a0);
+ } else if ((a2 & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) {
+ /* Output must be zero-extended, but input isn't. */
+ tcg_out_uxt(s, MO_16, a0, a0);
+ }
break;
case INDEX_op_ext8s_i64:
--
2.25.1
next prev parent reply other threads:[~2021-06-21 23:25 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-21 23:18 [PATCH v2 00/29] tcg: bswap improvements Richard Henderson
2021-06-21 23:18 ` [PATCH v2 01/29] tcg: Add flags argument to bswap opcodes Richard Henderson
2021-06-21 23:18 ` [PATCH v2 02/29] tcg/i386: Support bswap flags Richard Henderson
2021-06-21 23:18 ` [PATCH v2 03/29] tcg/aarch64: Merge tcg_out_rev{16,32,64} Richard Henderson
2021-06-21 23:18 ` Richard Henderson [this message]
2021-06-21 23:18 ` [PATCH v2 05/29] tcg/arm: Support bswap flags Richard Henderson
2021-06-21 23:18 ` [PATCH v2 06/29] tcg/ppc: Split out tcg_out_ext{8,16,32}s Richard Henderson
2021-06-21 23:18 ` [PATCH v2 07/29] tcg/ppc: Split out tcg_out_sari{32,64} Richard Henderson
2021-06-21 23:18 ` [PATCH v2 08/29] tcg/ppc: Split out tcg_out_bswap16 Richard Henderson
2021-06-21 23:18 ` [PATCH v2 09/29] tcg/ppc: Split out tcg_out_bswap32 Richard Henderson
2021-06-21 23:18 ` [PATCH v2 10/29] tcg/ppc: Split out tcg_out_bswap64 Richard Henderson
2021-06-21 23:18 ` [PATCH v2 11/29] tcg/ppc: Support bswap flags Richard Henderson
2021-06-21 23:18 ` [PATCH v2 12/29] tcg/ppc: Use power10 byte-reverse instructions Richard Henderson
2021-06-21 23:18 ` [PATCH v2 13/29] tcg/s390: Support bswap flags Richard Henderson
2021-06-21 23:18 ` [PATCH v2 14/29] tcg/mips: Support bswap flags in tcg_out_bswap16 Richard Henderson
2021-06-22 6:48 ` Philippe Mathieu-Daudé
2021-06-21 23:18 ` [PATCH v2 15/29] tcg/mips: Support bswap flags in tcg_out_bswap32 Richard Henderson
2021-06-21 23:18 ` [PATCH v2 16/29] tcg/tci: Support bswap flags Richard Henderson
2021-06-21 23:18 ` [PATCH v2 17/29] tcg: Handle new bswap flags during optimize Richard Henderson
2021-06-21 23:18 ` [PATCH v2 18/29] tcg: Add flags argument to tcg_gen_bswap16_*, tcg_gen_bswap32_i64 Richard Henderson
2021-06-21 23:18 ` [PATCH v2 19/29] tcg: Make use of bswap flags in tcg_gen_qemu_ld_* Richard Henderson
2021-06-22 6:46 ` Philippe Mathieu-Daudé
2021-06-21 23:18 ` [PATCH v2 20/29] tcg: Make use of bswap flags in tcg_gen_qemu_st_* Richard Henderson
2021-06-21 23:18 ` [PATCH v2 21/29] target/arm: Improve REV32 Richard Henderson
2021-06-21 23:18 ` [PATCH v2 22/29] target/arm: Improve vector REV Richard Henderson
2021-06-22 6:47 ` Philippe Mathieu-Daudé
2021-06-21 23:18 ` [PATCH v2 23/29] target/arm: Improve REVSH Richard Henderson
2021-06-21 23:18 ` [PATCH v2 24/29] target/i386: Improve bswap translation Richard Henderson
2021-06-21 23:18 ` [PATCH v2 25/29] target/sh4: Improve swap.b translation Richard Henderson
2021-06-21 23:18 ` [PATCH v2 26/29] target/mips: Fix gen_mxu_s32ldd_s32lddr Richard Henderson
2021-06-21 23:18 ` [PATCH v2 27/29] tcg/arm: Unset TCG_TARGET_HAS_MEMORY_BSWAP Richard Henderson
2021-06-21 23:18 ` [PATCH v2 28/29] tcg/aarch64: " Richard Henderson
2021-06-21 23:18 ` [PATCH v2 29/29] tcg/riscv: Remove MO_BSWAP handling Richard Henderson
2021-06-21 23:45 ` [PATCH v2 00/29] tcg: bswap improvements no-reply
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