[Qemu-devel] [PATCH 0/1] TCG Aarch64 ldst 12bit scaled uimm

[Claudio Fontana]

Using only the ldst simm9 (unscaled offset) will often result in the
fallback mov immediate + ldst (register offset) to be triggered.

This change implements the ldst uimm12 (scaled offset), which avoids
the expensive fallback in certain conditions: the offset must be
naturally aligned and positive, and the scaled value must be
representable with 12bits.

This patch requires multiple reviewed but not committed yet series
reachable from:

https://lists.gnu.org/archive/html/qemu-devel/2013-06/msg00880.html
"AArch64 TCG target implementation, git repo"

Claudio Fontana (1):
  tcg/aarch64: implement ldst 12bit scaled uimm offset

 tcg/aarch64/tcg-target.c | 32 +++++++++++++++++++++++++++++---
 1 file changed, 29 insertions(+), 3 deletions(-)

-- 
1.8.1