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[PATCH v3 04/29] tcg/aarch64: Support bswap flags
From: |
Richard Henderson |
Subject: |
[PATCH v3 04/29] tcg/aarch64: Support bswap flags |
Date: |
Fri, 25 Jun 2021 23:36:06 -0700 |
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
- [PATCH v3 03/29] tcg/aarch64: Merge tcg_out_rev{16,32,64}, (continued)
- [PATCH v3 03/29] tcg/aarch64: Merge tcg_out_rev{16,32,64}, Richard Henderson, 2021/06/26
- [PATCH v3 06/29] tcg/ppc: Split out tcg_out_ext{8,16,32}s, Richard Henderson, 2021/06/26
- [PATCH v3 05/29] tcg/arm: Support bswap flags, Richard Henderson, 2021/06/26
- [PATCH v3 07/29] tcg/ppc: Split out tcg_out_sari{32,64}, Richard Henderson, 2021/06/26
- [PATCH v3 02/29] tcg/i386: Support bswap flags, Richard Henderson, 2021/06/26
- [PATCH v3 09/29] tcg/ppc: Split out tcg_out_bswap32, Richard Henderson, 2021/06/26
- [PATCH v3 11/29] tcg/ppc: Support bswap flags, Richard Henderson, 2021/06/26
- [PATCH v3 08/29] tcg/ppc: Split out tcg_out_bswap16, Richard Henderson, 2021/06/26
- [PATCH v3 04/29] tcg/aarch64: Support bswap flags,
Richard Henderson <=
- [PATCH v3 10/29] tcg/ppc: Split out tcg_out_bswap64, Richard Henderson, 2021/06/26
- [PATCH v3 12/29] tcg/ppc: Use power10 byte-reverse instructions, Richard Henderson, 2021/06/26
- [PATCH v3 16/29] tcg/tci: Support bswap flags, Richard Henderson, 2021/06/26
- [PATCH v3 15/29] tcg/mips: Support bswap flags in tcg_out_bswap32, Richard Henderson, 2021/06/26
- [PATCH v3 20/29] tcg: Make use of bswap flags in tcg_gen_qemu_st_*, Richard Henderson, 2021/06/26
- [PATCH v3 25/29] target/sh4: Improve swap.b translation, Richard Henderson, 2021/06/26