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| author | Bob Wilson <bob.wilson@apple.com> | 2009-09-05 01:19:16 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2009-09-05 01:19:16 +0000 |
| commit | 7f200029930392b71aba46942d9d94ea1ab28e3d (patch) | |
| tree | e08f136e42e5f90436ac11be395f2b1a6606dc66 /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
| parent | dc7f7b7ac3adcc921e8075403c7031e7b8288650 (diff) | |
| download | llvm-7f200029930392b71aba46942d9d94ea1ab28e3d.zip llvm-7f200029930392b71aba46942d9d94ea1ab28e3d.tar.gz llvm-7f200029930392b71aba46942d9d94ea1ab28e3d.tar.bz2 | |
Stabilize the order of live intervals in the priority_queue used by the
linear scan reg alloc. This fixes a problem I ran into where extracting
a function from a larger file caused the generated code to change (masking
the problem I was trying to debug) because the allocator behaved differently.
This changes the results for two X86 regression checks. stack-color-with-reg
is improved, with one less instruction, but pr3495 is worse, with one more
copy. As far as I can tell, these tests were just getting lucky or unlucky,
so I've changed the expected results.
llvm-svn: 81060
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
0 files changed, 0 insertions, 0 deletions