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authorDehao Chen <dehao@google.com>2016-10-11 05:19:00 +0000
committerDehao Chen <dehao@google.com>2016-10-11 05:19:00 +0000
commit87ba4550c7cd7fd4c76592c167a1a48e081715d5 (patch)
tree65f90e8d1fbdfd1512aa47aeeb3ca639dc1b2c6b /lib/Analysis/ProfileSummaryInfo.cpp
parentddd1430cb064bc65c3fc59ae283a3a6b7ef5d4b7 (diff)
Tune isHotFunction/isColdFunction
Summary: This patch sets function as hot if function's entry count is hot/cold. Reviewers: eraman, davidxl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D25048 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@283852 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/ProfileSummaryInfo.cpp')
-rw-r--r--lib/Analysis/ProfileSummaryInfo.cpp8
1 files changed, 2 insertions, 6 deletions
diff --git a/lib/Analysis/ProfileSummaryInfo.cpp b/lib/Analysis/ProfileSummaryInfo.cpp
index 289c1b21069..af16fe63884 100644
--- a/lib/Analysis/ProfileSummaryInfo.cpp
+++ b/lib/Analysis/ProfileSummaryInfo.cpp
@@ -74,9 +74,7 @@ bool ProfileSummaryInfo::isFunctionEntryHot(const Function *F) {
// FIXME: The heuristic used below for determining hotness is based on
// preliminary SPEC tuning for inliner. This will eventually be a
// convenience method that calls isHotCount.
- return (FunctionCount &&
- FunctionCount.getValue() >=
- (uint64_t)(0.3 * (double)Summary->getMaxFunctionCount()));
+ return FunctionCount && isHotCount(FunctionCount.getValue());
}
/// Returns true if the function's entry is a cold. If it returns false, it
@@ -95,9 +93,7 @@ bool ProfileSummaryInfo::isFunctionEntryCold(const Function *F) {
// FIXME: The heuristic used below for determining coldness is based on
// preliminary SPEC tuning for inliner. This will eventually be a
// convenience method that calls isHotCount.
- return (FunctionCount &&
- FunctionCount.getValue() <=
- (uint64_t)(0.01 * (double)Summary->getMaxFunctionCount()));
+ return FunctionCount && isColdCount(FunctionCount.getValue());
}
/// Compute the hot and cold thresholds.