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[Qemu-devel] [PATCH 0/5] tcg-sparc improvements
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 0/5] tcg-sparc improvements |
Date: |
Mon, 11 Jan 2010 11:22:06 -0800 |
As noticed elsewhere on the list mulu2_i32 is missing. Which led
me to notice that add2_i32 and sub2_i32 were also missing and also
led me to notice that division was incorrectly implemented.
My initial implementation of 32-bit division copied the existing practice
of using the 64-bit division insns for sparcv9, with proper sign/zero
extensions on the input operands. But that required extra temporaries
and quickly got ugly. In the end I thought it was clearer to simply use
the 32-bit division insns unconditionally.
That excercise, however, made me notice that 32-bit extension was not
special-cased, leading to the final patch.
r~
Richard Henderson (5):
tcg-sparc: Add tcg_out_arithc.
tcg-sparc: Implement add2, sub2, mulu2.
tcg-sparc: Do not remove %o[012] from 'r' constraint.
tcg-sparc: Implement division properly.
tcg-sparc: Implement ext32[su]_i64
tcg/sparc/tcg-target.c | 206 ++++++++++++++++++++++++++++++++----------------
tcg/sparc/tcg-target.h | 8 ++
2 files changed, 145 insertions(+), 69 deletions(-)
- [Qemu-devel] [PATCH 0/5] tcg-sparc improvements,
Richard Henderson <=
- [Qemu-devel] [PATCH 2/5] tcg-sparc: Implement add2, sub2, mulu2., Richard Henderson, 2010/01/11
- [Qemu-devel] [PATCH 1/5] tcg-sparc: Add tcg_out_arithc., Richard Henderson, 2010/01/11
- [Qemu-devel] [PATCH 3/5] tcg-sparc: Do not remove %o[012] from 'r' constraint., Richard Henderson, 2010/01/11
- [Qemu-devel] [PATCH 4/5] tcg-sparc: Implement division properly., Richard Henderson, 2010/01/11
- [Qemu-devel] [PATCH 5/5] tcg-sparc: Implement ext32[su]_i64, Richard Henderson, 2010/01/11
- Re: [Qemu-devel] [PATCH 0/5] tcg-sparc improvements, Palle Lyckegaard, 2010/01/11
- [Qemu-devel] Re: [PATCH 0/5] tcg-sparc improvements, Blue Swirl, 2010/01/12