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| author | Russell Gallop <russell.gallop@gmail.com> | 2019-09-05 09:26:04 +0000 |
|---|---|---|
| committer | Russell Gallop <russell.gallop@gmail.com> | 2019-09-05 09:26:04 +0000 |
| commit | c6fda60d71ad4958a2ae0e6c11a89e39cddb6d70 (patch) | |
| tree | 6cea47093df536967cd36a4bf366bc217ca783a9 /llvm/lib/CodeGen/MachineFunction.cpp | |
| parent | 32048464ee3e3fe8c23ea4183f2fedc09a20b2b3 (diff) | |
| download | bcm5719-llvm-c6fda60d71ad4958a2ae0e6c11a89e39cddb6d70.tar.gz bcm5719-llvm-c6fda60d71ad4958a2ae0e6c11a89e39cddb6d70.zip | |
Fix time-trace breaking flame graph assumptions
-ftime-trace could break flame-graph assumptions on Windows, with an
inner scope overrunning outer scopes. This was due to the way that times
were truncated. Changed this so time_points for the flame-graph are
truncated instead of durations, preserving the relative order of event
starts and ends.
I have tried to retain the extra precision for the totals, which count
thousands or millions of events.
Added assert to check this property holds in future.
Fixes PR43043
Differential Revision: https://reviews.llvm.org/D66411
llvm-svn: 371039
Diffstat (limited to 'llvm/lib/CodeGen/MachineFunction.cpp')
0 files changed, 0 insertions, 0 deletions
