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[Qemu-devel] [PATCH 00/15] tcg-sparc improvments
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 00/15] tcg-sparc improvments |
Date: |
Sun, 25 Mar 2012 15:27:42 -0700 |
32-bit sparc hasn't worked in quite a while. Missing opcodes,
incorrect opcodes, unconditional use of ASI_PRIMARY_LITTLE.
This patch set begins by dropping support for pre-v9 sparc.
This lets us clean things up quite a bit, using 64-bit load
and store operations.
I was still having problems with %g6 being clobbered in glibc.
Patches 7-10 drop the use of global registers for the sparc
port entirely. Given the hoops being used to protect areg0
around calls within the tcg generated code, deferring to a
%g7-relative tls access in the helpers is approximately as
efficient. As targets are converted to CONFIG_TCG_PASS_AREG0
even this will improve as direct register access is available.
r~
Richard Henderson (15):
tcg-sparc: Hack in qemu_ld/st64 for 32-bit.
tcg-sparc: Fix ADDX opcode.
tcg-sparc: Assume v9 cpu always, i.e. force v8plus in 32-bit mode.
tcg-sparc: Fix qemu_ld/st to handle 32-bit host.
tcg-sparc: Simplify qemu_ld/st direct memory paths.
tcg-sparc: Support GUEST_BASE.
tcg-sparc: Steamline qemu_ld/st more.
Avoid declaring the env variable at all if CONFIG_TCG_PASS_AREG0.
tcg-sparc: Do not use a global register for AREG0.
tcg-sparc: Change AREG0 in generated code to %i0.
tcg-sparc: Clean up cruft stemming from attempts to use global
registers.
tcg-sparc: Mask shift immediates to avoid illegal insns.
tcg-sparc: Use defines for temporaries.
tcg-sparc: Add %g/%o registers to alloc_order
tcg-sparc: Fix and enable direct TB chaining.
configure | 53 +---
dyngen-exec.h | 27 +-
exec-all.h | 9 +-
exec.c | 16 +-
tcg/sparc/tcg-target.c | 951 +++++++++++++++++++++++-------------------------
tcg/sparc/tcg-target.h | 34 +-
user-exec.c | 17 +-
7 files changed, 520 insertions(+), 587 deletions(-)
--
1.7.7.6
- [Qemu-devel] [PATCH 00/15] tcg-sparc improvments,
Richard Henderson <=
- [Qemu-devel] [PATCH 01/15] tcg-sparc: Hack in qemu_ld/st64 for 32-bit., Richard Henderson, 2012/03/25
- [Qemu-devel] [PATCH 02/15] tcg-sparc: Fix ADDX opcode., Richard Henderson, 2012/03/25
- [Qemu-devel] [PATCH 06/15] tcg-sparc: Support GUEST_BASE., Richard Henderson, 2012/03/25
- [Qemu-devel] [PATCH 03/15] tcg-sparc: Assume v9 cpu always, i.e. force v8plus in 32-bit mode., Richard Henderson, 2012/03/25
- [Qemu-devel] [PATCH 07/15] tcg-sparc: Steamline qemu_ld/st more., Richard Henderson, 2012/03/25
- [Qemu-devel] [PATCH 09/15] tcg-sparc: Do not use a global register for AREG0., Richard Henderson, 2012/03/25
- [Qemu-devel] [PATCH 05/15] tcg-sparc: Simplify qemu_ld/st direct memory paths., Richard Henderson, 2012/03/25