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| author | Dean Michael Berris <dberris@google.com> | 2016-11-16 01:01:13 +0000 |
|---|---|---|
| committer | Dean Michael Berris <dberris@google.com> | 2016-11-16 01:01:13 +0000 |
| commit | 4031e4b95d2e96a6dc607eb37ee1cc6ed6ce2389 (patch) | |
| tree | e443a9cc9168d61bc0ff4b4ca86eb6231f7de344 /llvm/lib/CodeGen/RegAllocGreedy.cpp | |
| parent | fb1e6d22a32c7d88e52ef3575cc511cf91b02d25 (diff) | |
| download | bcm5719-llvm-4031e4b95d2e96a6dc607eb37ee1cc6ed6ce2389.tar.gz bcm5719-llvm-4031e4b95d2e96a6dc607eb37ee1cc6ed6ce2389.zip | |
[XRay][compiler-rt] Disable XRay instrumentation of the XRay runtime.
Summary:
Adds a CMake check for whether the compiler used to build the XRay
library supports XRay-instrumentation. If the compiler we're using does
support the `-fxray-instrument` flag (i.e. recently-built Clang), we
define the XRAY_NEVER_INSTRUMENT macro that then makes sure that the
XRay runtime functions never get XRay-instrumented.
This prevents potential weirdness involved with building the XRay
library with a Clang that supports XRay-instrumentation, and is
attempting to XRay-instrument the build of compiler-rt.
Reviewers: majnemer, rSerge, echristo
Subscribers: mehdi_amini, llvm-commits, mgorny
Differential Revision: https://reviews.llvm.org/D26597
llvm-svn: 287068
Diffstat (limited to 'llvm/lib/CodeGen/RegAllocGreedy.cpp')
0 files changed, 0 insertions, 0 deletions
