llvm-project

History

Nico Weber 176efac95b Don't crash when passing a non-existent file to -fprofile-instr-use=. Fixes a regression from r229434. llvm-svn: 234141		2015-04-06 04:16:48 +00:00
..
Inputs	InstrProf: Update for LLVM API change	2014-08-01 22:50:16 +00:00
README	PGO: Clarify the testing README	2014-03-11 18:18:12 +00:00
c-attributes.c	test: Use llvm-profdata merge in Profile tests	2014-04-17 22:49:06 +00:00
c-captured.c	InstrProf: Make profile variables private to reduce binary size overhead	2015-03-20 06:34:38 +00:00
c-counter-overflows.c	IR: Make metadata typeless in assembly, clang side	2014-12-15 19:10:08 +00:00
c-general.c	InstrProf: Make profile variables private to reduce binary size overhead	2015-03-20 06:34:38 +00:00
c-linkage-available_externally.c	Test case updates for explicit type parameter to the gep operator	2015-03-13 18:21:46 +00:00
c-linkage.c	InstrProf: Make profile variables private to reduce binary size overhead	2015-03-20 06:34:38 +00:00
c-outdated-data.c	test: Use llvm-profdata merge in Profile tests	2014-04-17 22:49:06 +00:00
c-unprofiled-blocks.c	test: Use llvm-profdata merge in Profile tests	2014-04-17 22:49:06 +00:00
c-unprofiled.c	CodeGen: Improve warnings about uninstrumented files when profiling	2014-06-26 01:45:07 +00:00
c-unreachable-after-switch.c	InstrProf: Make profile variables private to reduce binary size overhead	2015-03-20 06:34:38 +00:00
cxx-class.cpp	IR: Make metadata typeless in assembly, clang side	2014-12-15 19:10:08 +00:00
cxx-implicit.cpp	CodeGen: Avoid instrumenting implicit Decls more effectively	2014-04-25 07:20:05 +00:00
cxx-lambda.cpp	Re-land "MS ABI: lambda call operators are instance methods and should use thiscall"	2015-04-01 20:22:13 +00:00
cxx-linkage.cpp	InstrProf: Make profile variables private to reduce binary size overhead	2015-03-20 06:34:38 +00:00
cxx-templates.cpp	IR: Make metadata typeless in assembly, clang side	2014-12-15 19:10:08 +00:00
cxx-throws.cpp	InstrProf: Make profile variables private to reduce binary size overhead	2015-03-20 06:34:38 +00:00
objc-general.m	InstrProf: Make profile variables private to reduce binary size overhead	2015-03-20 06:34:38 +00:00
profile-does-not-exist.c	Don't crash when passing a non-existent file to -fprofile-instr-use=.	2015-04-06 04:16:48 +00:00

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.