This patch series rework the copy propagation in order to generate
better code. The first two patches are cleanup and bug fixes, the third
patch is the heart of the series, and the remaining ones are small
optimizations using the new copy propagation.
I have measured a decrease of the generated code size of about 4%, with
a gain in speed between 0 and 2% depending on the workload.
For better benefits in ARM emulation, it should be used with the setcond
patches series I have sent a few days ago.
--
Changes v1 -> v2
- fixed conflict in patch 3 following movcond introduction
- movcond optimization added in patch 7
- added patch 10
Aurelien Jarno (10):
tcg/optimize: remove TCG_TEMP_ANY
tcg/optimize: check types in copy propagation
tcg/optimize: rework copy progagation
tcg/optimize: do copy propagation for all operations
tcg/optimize: optimize "op r, a, a => mov r, a"
tcg/optimize: optimize "op r, a, a => movi r, 0"
tcg/optimize: further optimize brcond/movcond/setcond
tcg/optimize: prefer the "op a, a, b" form for commutative ops
tcg: remove #ifdef #endif around TCGOpcode tests
tcg/optimize: add constant folding for deposit
tcg/optimize.c | 361 ++++++++++++++++++++++++++++++++++----------------------
tcg/tcg.c | 13 +-
2 files changed, 224 insertions(+), 150 deletions(-)
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1.7.10.4
