Benjamin Kramer 93702a3b07 BlockFrequency: Saturate at 1 instead of 0 when multiplying a frequency with a branch probability. ... Zero is used by BlockFrequencyInfo as a special "don't know" value. It also causes a sink for frequencies as you can't ever get off a zero frequency with more multiplies. This recovers a 10% regression on MultiSource/Benchmarks/7zip. A zero frequency was propagated into an inner loop causing excessive spilling. PR16402. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184584 91177308-0d34-0410-b5e6-96231b3b80d8		2013-06-21 19:30:05 +00:00
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llvm	BlockFrequency: Saturate at 1 instead of 0 when multiplying a frequency with a branch probability.	2013-06-21 19:30:05 +00:00
llvm-c	Add a new function attribute 'cold' to functions.	2013-05-24 12:26:52 +00:00