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[Qemu-devel] [RFC PATCH v1 07/22] target/i386: add vector register file
From: |
Jan Bobek |
Subject: |
[Qemu-devel] [RFC PATCH v1 07/22] target/i386: add vector register file alignment constraints |
Date: |
Wed, 31 Jul 2019 13:56:47 -0400 |
gvec operations require that all vectors be aligned on 16-byte
boundary; make sure the MM/XMM/YMM/ZMM register file is aligned as
neccessary.
Signed-off-by: Jan Bobek <address@hidden>
---
target/i386/cpu.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 8b3dc5533e..cb407b86ba 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1199,9 +1199,9 @@ typedef struct CPUX86State {
float_status mmx_status; /* for 3DNow! float ops */
float_status sse_status;
uint32_t mxcsr;
- ZMMReg xmm_regs[CPU_NB_REGS == 8 ? 8 : 32];
- ZMMReg xmm_t0;
- MMXReg mmx_t0;
+ ZMMReg xmm_regs[CPU_NB_REGS == 8 ? 8 : 32] QEMU_ALIGNED(16);
+ ZMMReg xmm_t0 QEMU_ALIGNED(16);
+ MMXReg mmx_t0 QEMU_ALIGNED(8);
XMMReg ymmh_regs[CPU_NB_REGS];
--
2.20.1
- [Qemu-devel] [RFC PATCH v1 00/22] reimplement (some) x86 vector instructions using tcg-gvec, Jan Bobek, 2019/07/31
- [Qemu-devel] [RFC PATCH v1 02/22] target/i386: Push rex_w into DisasContext, Jan Bobek, 2019/07/31
- [Qemu-devel] [RFC PATCH v1 01/22] target/i386: Push rex_r into DisasContext, Jan Bobek, 2019/07/31
- [Qemu-devel] [RFC PATCH v1 05/22] target/i386: introduce gen_ld_modrm_* helpers, Jan Bobek, 2019/07/31
- [Qemu-devel] [RFC PATCH v1 04/22] target/i386: Simplify gen_exception arguments, Jan Bobek, 2019/07/31
- [Qemu-devel] [RFC PATCH v1 07/22] target/i386: add vector register file alignment constraints,
Jan Bobek <=
- [Qemu-devel] [RFC PATCH v1 09/22] target/i386: reimplement (V)POR, (V)ORPS, (V)ORPD, Jan Bobek, 2019/07/31
- [Qemu-devel] [RFC PATCH v1 06/22] target/i386: introduce gen_gvec_ld_modrm_* helpers, Jan Bobek, 2019/07/31
- [Qemu-devel] [RFC PATCH v1 08/22] target/i386: reimplement (V)PAND, (V)ANDPS, (V)ANDPD, Jan Bobek, 2019/07/31
- [Qemu-devel] [RFC PATCH v1 10/22] target/i386: reimplement (V)PXOR, (V)XORPS, (V)XORPD, Jan Bobek, 2019/07/31
- [Qemu-devel] [RFC PATCH v1 03/22] target/i386: Use prefix, aflag and dflag from DisasContext, Jan Bobek, 2019/07/31