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| author | Evan Cheng <evan.cheng@apple.com> | 2010-10-03 02:03:59 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-10-03 02:03:59 +0000 |
| commit | ec45f60cab671b0e7e2c1768395310bed7c74525 (patch) | |
| tree | 073007c94c085fcf2e978974eb725e41b4037311 /lib/CodeGen/MachineBasicBlock.cpp | |
| parent | 40660103021ba542b9cd8ef0e8dfa227ce080690 (diff) | |
Major changes to Cortex-A9 itinerary.
1. Model dual issues as two FUs.
2. Model the pipelines correctly: two symmetric ALUs, the multiplier is a
dependent pipeline on ALU0.
The changes do not have much impact on codegen right now. But I plan to make
pre-RA scheduler multi-issue aware which should take good advantage of the
changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115457 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineBasicBlock.cpp')
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