From: Richard Henderson <rth@twiddle.net>
To: qemu-devel@nongnu.org
Cc: aurelien@aurel32.net
Subject: [Qemu-devel] [PATCH v2 2/9] tcg-i386: Add and use tcg_out64
Date: Fri, 16 Aug 2013 23:13:27 -0700 [thread overview]
Message-ID: <1376720014-1894-3-git-send-email-rth@twiddle.net> (raw)
In-Reply-To: <1376720014-1894-1-git-send-email-rth@twiddle.net>
No point in splitting the write into 32-bit pieces.
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
---
tcg/i386/tcg-target.c | 3 +--
tcg/tcg.c | 7 +++++++
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c
index 87eeab3..841bd75 100644
--- a/tcg/i386/tcg-target.c
+++ b/tcg/i386/tcg-target.c
@@ -552,8 +552,7 @@ static void tcg_out_movi(TCGContext *s, TCGType type,
tcg_out32(s, arg);
} else {
tcg_out_opc(s, OPC_MOVL_Iv + P_REXW + LOWREGMASK(ret), 0, ret, 0);
- tcg_out32(s, arg);
- tcg_out32(s, arg >> 31 >> 1);
+ tcg_out64(s, arg);
}
}
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 42c95af..19bd5a3 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -133,6 +133,13 @@ static inline void tcg_out32(TCGContext *s, uint32_t v)
s->code_ptr = p + 4;
}
+static inline void tcg_out64(TCGContext *s, uint64_t v)
+{
+ uint8_t *p = s->code_ptr;
+ *(uint64_t *)p = v;
+ s->code_ptr = p + 8;
+}
+
/* label relocation processing */
static void tcg_out_reloc(TCGContext *s, uint8_t *code_ptr, int type,
--
1.8.1.4
next prev parent reply other threads:[~2013-08-17 6:14 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-17 6:13 [Qemu-devel] [PATCH v2 0/9] Improve tcg ldst optimization Richard Henderson
2013-08-17 6:13 ` [Qemu-devel] [PATCH v2 1/9] tcg: Tidy generated code for tcg_outN Richard Henderson
2013-08-17 6:13 ` Richard Henderson [this message]
2013-08-17 6:13 ` [Qemu-devel] [PATCH v2 3/9] tcg-i386: Try pc-relative lea for constant formation Richard Henderson
2013-08-17 6:13 ` [Qemu-devel] [PATCH v2 4/9] tcg-i386: Tidy qemu_ld/st slow path Richard Henderson
2013-08-17 6:13 ` [Qemu-devel] [PATCH v2 5/9] tcg: Add mmu helpers that take a return address argument Richard Henderson
2013-08-17 6:13 ` [Qemu-devel] [PATCH v2 6/9] tcg: Tidy softmmu_template.h Richard Henderson
2013-08-17 6:13 ` [Qemu-devel] [PATCH v2 7/9] tcg-i386: Use new return-argument ld/st helpers Richard Henderson
2013-08-17 6:13 ` [Qemu-devel] [PATCH v2 8/9] tcg-arm: Use ldrd/strd for appropriate qemu_ld/st64 Richard Henderson
2013-08-17 6:13 ` [Qemu-devel] [PATCH v2 9/9] tcg-arm: Rearrange slow-path qemu_ld/st Richard Henderson
2013-08-27 10:55 ` [Qemu-devel] [PATCH v2 0/9] Improve tcg ldst optimization Aurelien Jarno
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