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| author | Chris Lattner <sabre@nondot.org> | 2004-11-14 20:50:30 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2004-11-14 20:50:30 +0000 |
| commit | bd38edfe236944ebecbbf84ef9ea75d5412737b5 (patch) | |
| tree | febd533c7460d76ee14bfb76fadcf49953aabc6a /lib/Bytecode | |
| parent | 826c47ea5bdb6c252e6d4db83b0bc0047b3acb2c (diff) | |
If a global is just loaded and restored, realize that it is not changing
value. This allows us to turn more globals into constants and eliminate them.
This patch implements GlobalOpt/load-store-global.llx.
Note that this patch speeds up 255.vortex from:
Output/255.vortex.out-cbe.time:program 7.640000
Output/255.vortex.out-llc.time:program 9.810000
to:
Output/255.vortex.out-cbe.time:program 7.250000
Output/255.vortex.out-llc.time:program 9.490000
Which isn't bad at all!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17746 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Bytecode')
0 files changed, 0 insertions, 0 deletions