From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: Nathan Froyd <froydnj@codesourcery.com>
Subject: Re: [Qemu-devel] [PATCH 02/10] Specialize tcg_gen_not_i64 for 32-bit targets
Date: Tue, 31 Mar 2009 22:45:23 +0000 [thread overview]
Message-ID: <200903312345.23710.paul@codesourcery.com> (raw)
In-Reply-To: <1238274167-7890-3-git-send-email-froydnj@codesourcery.com>
> #ifdef TCG_TARGET_HAS_not_i64
> tcg_gen_op2_i64(INDEX_op_not_i64, ret, arg);
> +#elif defined(TCG_TARGET_HAS_not_i32)
> + tcg_gen_not_i32(TCGV_LOW(ret), TCGV_LOW(arg));
> + tcg_gen_not_i32(TCGV_HIGH(ret), TCGV_HIGH(arg));
> #else
> tcg_gen_xori_i64(ret, arg, -1);
This is only valid when TCG_TARGET_REG_BITS == 32
Annother possibility is to move the the op_not generation to gen_xori. You
should get this for free then.
Paul
next prev parent reply other threads:[~2009-03-31 22:45 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-28 21:02 [Qemu-devel] [PATCH 0/10] tcg: improve logical op support for ppc hosts Nathan Froyd
2009-03-28 21:02 ` [Qemu-devel] [PATCH 01/10] Add TCG ops for various logical operations Nathan Froyd
2009-03-28 21:02 ` [Qemu-devel] [PATCH 02/10] Specialize tcg_gen_not_i64 for 32-bit targets Nathan Froyd
2009-03-31 22:45 ` Paul Brook [this message]
2009-03-28 21:02 ` [Qemu-devel] [PATCH 03/10] Implement specialized andc_i{32,64} Nathan Froyd
2009-03-28 21:02 ` [Qemu-devel] [PATCH 04/10] Implement specialized eqv_{i32,i64} Nathan Froyd
2009-03-28 21:02 ` [Qemu-devel] [PATCH 05/10] Implement specialized nand_i{32,64} Nathan Froyd
2009-03-28 21:02 ` [Qemu-devel] [PATCH 06/10] Implement specialized nor_i{32,64} Nathan Froyd
2009-03-28 21:02 ` [Qemu-devel] [PATCH 07/10] Implement specialized orc_i{32,64} Nathan Froyd
2009-03-28 21:02 ` [Qemu-devel] [PATCH 08/10] Implement new logical instructions for ppc Nathan Froyd
2009-03-28 21:02 ` [Qemu-devel] [PATCH 09/10] Implement new logical instructions for ppc64 Nathan Froyd
2009-03-28 21:02 ` [Qemu-devel] [PATCH 10/10] Remove r0 from the allocation pool on ppc/ppc64 Nathan Froyd
2009-03-28 22:26 ` malc
2009-03-28 22:43 ` [Qemu-devel] [PATCH 0/10] tcg: improve logical op support for ppc hosts malc
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