Chandler Carruth
f191cab95f
Make an obviously const interface actually be marked as const.
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llvm-svn: 145009
2011-11-20 11:22:03 +00:00
Benjamin Kramer
0638353f56
Implement comparison operators for BranchProbability in a way that can't overflow INT64_MAX.
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Add a test case for the edge case that triggers this. Thanks to Chandler for bringing this to my attention.
llvm-svn: 142794
2011-10-24 13:50:56 +00:00
Chandler Carruth
c10018cd49
Now that we have comparison on probabilities, add some static functions
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to get important constant branch probabilities and use them for finding
the best branch out of a set of possibilities.
llvm-svn: 142762
2011-10-23 20:10:34 +00:00
Benjamin Kramer
9adc582e35
Add compare operators to BranchProbability and use it to determine if an edge is hot.
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llvm-svn: 142751
2011-10-23 11:19:14 +00:00
Jakub Staszak
ddeb8772c8
BranchProbability::print returns void now.
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llvm-svn: 135994
2011-07-25 22:27:42 +00:00
Jakub Staszak
171cc8d07d
Fix class description.
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llvm-svn: 135948
2011-07-25 20:08:58 +00:00
Jakub Staszak
a8987cb392
- Make BranchProbability constructor public.
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- Add getCompl() method.
llvm-svn: 134857
2011-07-10 02:12:39 +00:00
Jakub Staszak
d74cc36bcb
Introduce BlockFrequency analysis for BasicBlocks.
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llvm-svn: 133766
2011-06-23 21:45:20 +00:00
Andrew Trick
4591f882c2
Branch profiling: floating-point avoidance.
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Patch by: Jakub Staszak!
Introduces BranchProbability. Changes unsigned to uint32_t all over and
uint64_t only when overflow is expected.
llvm-svn: 132867
2011-06-11 01:05:22 +00:00
