clang-p2996

Files

Vedant Kumar 96d6ca7e8c [Profile] Add off-by-default -Wprofile-instr-missing warning

Clang warns that a profile is out-of-date if it can't find a profile
record for any function in a TU. This warning became noisy after llvm
started allowing dead-stripping of instrumented functions.

To fix this, this patch changes the existing profile out-of-date warning
(-Wprofile-instr-out-of-date) so that it only complains about mismatched
data. Further, it introduces a new, off-by-default warning about missing
function data (-Wprofile-instr-missing).

Differential Revision: https://reviews.llvm.org/D28867

llvm-svn: 301570

2017-04-27 17:30:58 +00:00

Inputs

[profiling] PR31992: Don't skip interesting non-base constructors

2017-02-24 01:15:19 +00:00

c-avoid-direct-call.c

[PGO] Avoid instrumenting constants at value sites

2016-03-31 18:41:34 +00:00

c-captured.c

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c-counter-overflows.c

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c-general.c

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c-generate.c

[profiling] Tighten test cases which refer to "profn" vars. NFC.

2017-02-18 01:50:14 +00:00

c-indirect-call.c

Add test for D21736.

2016-11-22 20:03:40 +00:00

c-linkage-available_externally.c

[Profile] Update testcase for r283948 (NFC)

2016-10-11 21:56:05 +00:00

c-linkage.c

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c-outdated-data.c

[Profile] Add off-by-default -Wprofile-instr-missing warning

2017-04-27 17:30:58 +00:00

c-ternary.c

Weaken test/Profile/c-ternary.c

2017-02-25 07:21:23 +00:00

c-unprofiled-blocks.c

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c-unprofiled.c

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c-unreachable-after-switch.c

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cxx-class.cpp

[profiling] PR31992: Don't skip interesting non-base constructors

2017-02-24 01:15:19 +00:00

cxx-implicit.cpp

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cxx-indirect-call.cpp

Add test for D21736.

2016-11-22 20:03:40 +00:00

cxx-lambda.cpp

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cxx-linkage.cpp

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cxx-rangefor.cpp

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cxx-stmt-initializers.cpp

[Coverage] Support for C++17 if initializers

2016-10-14 23:38:16 +00:00

cxx-structors.cpp

[profiling] PR31992: Don't skip interesting non-base constructors

2017-02-24 01:15:19 +00:00

cxx-templates.cpp

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cxx-throws.cpp

[profile] Use cc1 in these tests instead of the driver.

2016-04-23 02:11:16 +00:00

cxx-virtual-destructor-calls.cpp

[profiling] Update test cases to deal with name variable change (NFC)

2017-02-14 20:03:56 +00:00

def-assignop.cpp

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def-ctors.cpp

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def-dtors.cpp

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func-entry.c

Make '-disable-llvm-optzns' an alias for '-disable-llvm-passes'.

2016-12-23 00:23:01 +00:00

gcc-flag-compatibility.c

Fix two test cases I missed updating in r291850. Sorry for the noise.

2017-01-12 22:48:28 +00:00

objc-general.m

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profile-does-not-exist.c

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profile-summary.c

Make '-disable-llvm-optzns' an alias for '-disable-llvm-passes'.

2016-12-23 00:23:01 +00:00

README

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README

These are tests for instrumentation based profiling.  This specifically means
the -fprofile-instr-generate and -fprofile-instr-use driver flags.

Tests in this directory should usually test both:

  - the generation of instrumentation (-fprofile-instr-generate), and
  - the use of profile data from instrumented runs (-fprofile-instr-use).

In order to test -fprofile-instr-use without actually running an instrumented
program, .profdata files are checked into Inputs/.

The input source files must include a main function such that building with
-fprofile-instr-generate and running the resulting program generates the same
.profdata file that is consumed by the tests for -fprofile-instr-use.  Even
tests that only check -fprofile-instr-use should include such a main function,
so that profile data can be regenerated as the .profdata file format evolves.