Commit Graph

5 Commits

Author SHA1 Message Date
Hans Wennborg 14e8a5a32d Add -finstrument-function-entry-bare flag
This is an instrumentation flag that's similar to
-finstrument-functions, but it only inserts calls on function entry, the
calls are inserted post-inlining, and they don't take any arugments.

This is intended for users who want to instrument function entry with
minimal overhead.

(-pg would be another alternative, but forces frame pointer emission and
affects link flags, so is probably best left alone to be used for
generating gcov data.)

Differential revision: https://reviews.llvm.org/D40276

llvm-svn: 318785
2017-11-21 17:30:34 +00:00
Hans Wennborg 57dd59d472 Try to fix the instrument-functions tests
On e.g. PPC the return value and argument were marked 'signext'. This
makes the test expectations a bit more flexible.

Follow-up to r318199.

llvm-svn: 318214
2017-11-14 23:10:04 +00:00
Hans Wennborg 76c26c1dca Switch -mcount and -finstrument-functions to emit EnterExitInstrumenter attributes
This updates -mcount to use the new attribute names (LLVM r318195), and
switches over -finstrument-functions to also use these attributes rather
than inserting instrumentation in the frontend.

It also adds a new flag, -finstrument-functions-after-inlining, which
makes the cygprofile instrumentation get inserted after inlining rather
than before.

Differential Revision: https://reviews.llvm.org/D39331

llvm-svn: 318199
2017-11-14 21:13:27 +00:00
Adrian Prantl 06f445d65b Debug info: Apply an artificial debug location to __cyg_profile_func.* calls.
The LLVM Verifier expects all inlinable calls in debuggable functions to
have a location.

rdar://problem/25818489

llvm-svn: 267904
2016-04-28 17:21:56 +00:00
Chris Lattner 3c77a355e0 implement support for -finstrument-functions, patch by Nelson
Elhage!

llvm-svn: 106507
2010-06-22 00:03:40 +00:00