From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PATCH v2 12/29] tcg/ppc: Use power10 byte-reverse instructions
Date: Mon, 21 Jun 2021 16:18:32 -0700 [thread overview]
Message-ID: <20210621231849.1871164-13-richard.henderson@linaro.org> (raw)
In-Reply-To: <20210621231849.1871164-1-richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/ppc/tcg-target.c.inc | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index 33f0139519..ea1734d6be 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -413,6 +413,10 @@ static bool tcg_target_const_match(int64_t val, TCGType type, int ct)
#define SRAD XO31(794)
#define SRADI XO31(413<<1)
+#define BRH XO31(219)
+#define BRW XO31(155)
+#define BRD XO31(187)
+
#define TW XO31( 4)
#define TRAP (TW | TO(31))
@@ -748,6 +752,11 @@ static inline void tcg_out_ext16s(TCGContext *s, TCGReg dst, TCGReg src)
tcg_out32(s, EXTSH | RA(dst) | RS(src));
}
+static inline void tcg_out_ext16u(TCGContext *s, TCGReg dst, TCGReg src)
+{
+ tcg_out32(s, ANDI | SAI(src, dst, 0xffff));
+}
+
static inline void tcg_out_ext32s(TCGContext *s, TCGReg dst, TCGReg src)
{
tcg_out32(s, EXTSW | RA(dst) | RS(src));
@@ -793,6 +802,16 @@ static void tcg_out_bswap16(TCGContext *s, TCGReg dst, TCGReg src, int flags)
{
TCGReg tmp = dst == src ? TCG_REG_R0 : dst;
+ if (have_isa_3_10) {
+ tcg_out32(s, BRH | RA(dst) | RS(src));
+ if (flags & TCG_BSWAP_OS) {
+ tcg_out_ext16s(s, dst, dst);
+ } else if ((flags & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) {
+ tcg_out_ext16u(s, dst, dst);
+ }
+ return;
+ }
+
/*
* In the following,
* dep(a, b, m) -> (a & ~m) | (b & m)
@@ -815,6 +834,16 @@ static void tcg_out_bswap32(TCGContext *s, TCGReg dst, TCGReg src, int flags)
{
TCGReg tmp = dst == src ? TCG_REG_R0 : dst;
+ if (have_isa_3_10) {
+ tcg_out32(s, BRW | RA(dst) | RS(src));
+ if (flags & TCG_BSWAP_OS) {
+ tcg_out_ext32s(s, dst, src);
+ } else if ((flags & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) {
+ tcg_out_ext32u(s, dst, dst);
+ }
+ return;
+ }
+
/*
* Stolen from gcc's builtin_bswap32.
* In the following,
@@ -841,6 +870,11 @@ static void tcg_out_bswap64(TCGContext *s, TCGReg dst, TCGReg src)
TCGReg t0 = dst == src ? TCG_REG_R0 : dst;
TCGReg t1 = dst == src ? dst : TCG_REG_R0;
+ if (have_isa_3_10) {
+ tcg_out32(s, BRD | RA(dst) | RS(src));
+ return;
+ }
+
/*
* In the following,
* dep(a, b, m) -> (a & ~m) | (b & m)
--
2.25.1
next prev parent reply other threads:[~2021-06-21 23:30 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 ` [PATCH v2 04/29] tcg/aarch64: Support bswap flags Richard Henderson
2021-06-21 23:18 ` [PATCH v2 05/29] tcg/arm: " 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 ` Richard Henderson [this message]
2021-06-21 23:18 ` [PATCH v2 13/29] tcg/s390: " 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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