Commit Graph

16 Commits

Author SHA1 Message Date
Vedant Kumar
6debe84674 [Coverage] Record PGO function name in SILCoverageMap
This simplifies the lowering of instrprof_increment by getting rid of a
call to llvm::getPGOFuncName().
2018-01-05 17:20:20 -08:00
Vedant Kumar
dd560d2aa6 [Coverage] Refactor SIL generation for profiling
This patch moves the ownership of profiling state from SILGenProfiling
to SILFunction, where it always belonged. Similarly, it moves ownership
of the profile reader from SILGenModule to SILModule.

The refactor sets us up to fix a few outstanding code coverage bugs and
does away with sad hacks like ProfilerRAII. It also allows us to locally
guarantee that a profile counter increment actually corresponds to the
SILFunction at hand.

That local guarantee causes a bugfix to accidentally fall out of this
refactor: we now set up the profiling state for delayed functions
correctly. Previously, we would set up a ProfilerRAII for the delayed
function, but its counter increment would never be emitted :(. This fix
constitutes the only functional change in this patch -- the rest is NFC.

As a follow-up, I plan on removing some dead code in the profiling
logic and fixing a few naming inconsistencies. I've left that for later
to keep this patch simple.
2018-01-05 17:20:20 -08:00
Vedant Kumar
cccee1df03 Revert "[Coverage] Refactor SIL generation for profiling" 2018-01-03 21:57:49 -08:00
Vedant Kumar
aba9d53736 [Coverage] Refactor SIL generation for profiling
This patch moves the ownership of profiling state from SILGenProfiling
to SILFunction, where it always belonged. Similarly, it moves ownership
of the profile reader from SILGenModule to SILModule.

The refactor sets us up to fix a few outstanding code coverage bugs and
does away with sad hacks like ProfilerRAII. It also allows us to locally
guarantee that a profile counter increment actually corresponds to the
SILFunction at hand.

That local guarantee causes a bugfix to accidentally fall out of this
refactor: we now set up the profiling state for delayed functions
correctly. Previously, we would set up a ProfilerRAII for the delayed
function, but its counter increment would never be emitted :(. This fix
constitutes the only functional change in this patch -- the rest is NFC.

As a follow-up, I plan on removing some dead code in the profiling
logic and fixing a few naming inconsistencies. I've left that for later
to keep this patch simple.
2018-01-03 11:18:40 -08:00
Huon Wilson
92e9d2d84f [SIL] Extract reoccuring allocation patterns.
No need to write a pile of manual memcpy's.
2017-01-26 12:42:13 -08:00
practicalswift
6d1ae2a39c [gardening] 2016 → 2017 2017-01-06 16:41:22 +01:00
practicalswift
38be6125e5 [gardening] C++ gardening: Terminate namespaces, fix argument names, ...
Changes:
* Terminate all namespaces with the correct closing comment.
* Make sure argument names in comments match the corresponding parameter name.
* Remove redundant get() calls on smart pointers.
* Prefer using "override" or "final" instead of "virtual". Remove "virtual" where appropriate.
2016-12-17 00:32:42 +01:00
practicalswift
797b80765f [gardening] Use the correct base URL (https://swift.org) in references to the Swift website
Remove all references to the old non-TLS enabled base URL (http://swift.org)
2016-11-20 17:36:03 +01:00
Chris Lattner
6778c88e7f Silence a warning. 2016-03-18 10:54:21 -07:00
Vedant Kumar
dc11f8bf01 [Coverage] Re-apply "Respect function linkage in PGO name variables"
Fix a crash in emitBuiltinCall() which occurs because we drop function
linkage information when creating SILCoverageMaps.

This re-applies 45c7e4e86 with the MachO-specific checks in the test
case removed.
2016-03-17 22:44:35 -07:00
Vedant Kumar
c59b266f93 Revert "[Coverage] Respect function linkage in PGO name variables"
This reverts commit 45c7e4e861.

The IR CHECK lines in coverage.swift are flaky.
2016-03-17 18:21:32 -07:00
Vedant Kumar
45c7e4e861 [Coverage] Respect function linkage in PGO name variables
Fix a crash in emitBuiltinCall() which occurs because we drop function
linkage information when creating SILCoverageMaps.
2016-03-17 18:06:39 -07:00
Zach Panzarino
e3a4147ac9 Update copyright date 2015-12-31 23:28:40 +00:00
Justin Bogner
322005d027 InstrProf: Track the filename in coverage maps
If multiple swift files are compiled together, then guessing as to the
file when we emit IR obviously doesn't work. Find the filename when we
generate a function's coverage map and propagate it through SIL.

Swift SVN r25436
2015-02-20 21:26:20 +00:00
Justin Bogner
3dbd6ea9bd InstrProf: SILFunction doesn't live long enough for SILCoverageMap
Keeping a reference to the function here is dangerous. We only
actually care about the name, so save ourselves a copy of that
instead.

This fixes a crash that seems to happen only when the coverage data is
very large.

Swift SVN r25433
2015-02-20 19:36:33 +00:00
Justin Bogner
59bb06b0fb InstrProf: SIL-level coverage mapping and lowering to LLVM
The adds the sil_coveragemap construct to SIL and the needed IRGen to
turn these into LLVM's coverage maps.

Swift SVN r25210
2015-02-12 00:28:39 +00:00