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[Qemu-devel] [PATCH v3 00/20] tcg-arm improvements
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH v3 00/20] tcg-arm improvements |
Date: |
Thu, 28 Mar 2013 08:32:41 -0700 |
Changes v2-v3:
* Patch 16 is an important bug fix. For helpers with more than 4 arguments,
we were clobbering the register save area. The patch as written is
difficult to disentangle from the rest of the series, but I think that
a similar patch should be written for stable.
I have no idea how we aren't just seeing crashes everywhere without this.
* The softmmu code is improved, using a tidier insn schedule and making
use of the out-of-line ldst feature.
* Always use blx for calls when we have movw+movt. BLX is predicted as
a call wrt the branch prediction stack, where a ldr into the pc isn't.
At least as documented for the A9.
r~
Richard Henderson (20):
tcg-arm: Use bic to implement and with constant
tcg-arm: Handle negated constant arguments to and/sub
tcg-arm: Allow constant first argument to sub
tcg-arm: Use tcg_out_dat_rIN for compares
tcg-arm: Handle constant arguments to add2/sub2
tcg-arm: Improve constant generation
tcg-arm: Fold epilogue into INDEX_op_exit_tb
tcg-arm: Implement deposit for armv7
tcg-arm: Implement division instructions
tcg-arm: Use TCG_REG_TMP name for the tcg temporary
tcg-arm: Use R12 for the tcg temporary
tcg-arm: Cleanup multiply subroutines
tcg-arm: Cleanup tcg_out_goto_label
tcg-arm: Cleanup goto_tb handling
tcg-arm: Cleanup most primitive load store subroutines
tcg-arm: Fix local stack frame
tcg-arm: Split out tcg_out_tlb_read
tcg-arm: Improve scheduling of tcg_out_tlb_read
tcg-arm: Use movi32 + blx for calls on v7
tcg-arm: Convert to CONFIG_QEMU_LDST_OPTIMIZATION
configure | 2 +-
disas/arm.c | 4 +
include/exec/exec-all.h | 40 +-
tcg/arm/tcg-target.c | 1506 ++++++++++++++++++++++++++---------------------
tcg/arm/tcg-target.h | 14 +-
translate-all.c | 2 -
6 files changed, 869 insertions(+), 699 deletions(-)
--
1.8.1.4
- [Qemu-devel] [PATCH v3 00/20] tcg-arm improvements,
Richard Henderson <=