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| author | Evan Cheng <evan.cheng@apple.com> | 2012-10-17 19:39:36 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2012-10-17 19:39:36 +0000 |
| commit | 839fb650b2c452c6da8b6835d986f559411970d7 (patch) | |
| tree | ce2ad0d1474b0fda2aed401bd391d6a381601dfa /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | 8e785e214b35145f6e83365c98544bd920d0e39e (diff) | |
| download | llvm-839fb650b2c452c6da8b6835d986f559411970d7.zip llvm-839fb650b2c452c6da8b6835d986f559411970d7.tar.gz llvm-839fb650b2c452c6da8b6835d986f559411970d7.tar.bz2 | |
Add a really faster pre-RA scheduler (-pre-RA-sched=linearize). It doesn't use
any scheduling heuristics nor does it build up any scheduling data structure
that other heuristics use. It essentially linearize by doing a DFA walk but
it does handle glues correctly.
IMPORTANT: it probably can't handle all the physical register dependencies so
it's not suitable for x86. It also doesn't deal with dbg_value nodes right now
so it's definitely is still WIP.
rdar://12474515
llvm-svn: 166122
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
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