[PATCH] D14893: [llvm-profdata] Change instr prof counter overflow to saturate rather than discard
Nathan Slingerland via llvm-commits
llvm-commits at lists.llvm.org
Fri Nov 20 15:54:40 PST 2015
slingn created this revision.
slingn added reviewers: dnovillo, davidxl, silvas.
slingn added a subscriber: llvm-commits.
This changes overflow handling during instrumentation profile merge. Rathar than throwing away records that would result in counter overflow, merged counts are instead clamped to the maximum representable value. A warning about counter overflow is still surfaced to the user as before.
http://reviews.llvm.org/D14893
Files:
include/llvm/ProfileData/InstrProf.h
lib/ProfileData/InstrProfWriter.cpp
test/tools/llvm-profdata/overflow.proftext
unittests/ProfileData/InstrProfTest.cpp
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