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Author SHA1 Message Date
Clement Courbet c20b5aa21d [llvm-exegesis] Temporarily disable a few tests. 
These are failing on clang-ppc64le-linux-lnt, though the subdirectory is
not even supposed to be built in CMakeLists. Disable the tests until we
understand what's going on.

llvm-svn: 329200
 2018-04-04 14:32:09 +00:00
Clement Courbet 1728fee6c3 [llvm-exegesis] Temporarily disable some tests. 
The tests fail on clang-x86-windows-msvc2015:
unknown file: error: SEH exception with code 0x3221225477 thrown in the test body.

llvm-svn: 329195
 2018-04-04 13:33:21 +00:00
Clement Courbet ac74acdefe Re-land r329156 "Add llvm-exegesis tool." 
Fixed to depend on and initialize the native target instead of X86.

llvm-svn: 329169
 2018-04-04 11:37:06 +00:00
Clement Courbet 7949b3b1dc Revert r329156 "Add llvm-exegesis tool." 
Breaks a bunch of bots.

llvm-svn: 329157
 2018-04-04 08:22:54 +00:00
Clement Courbet 7287b2c1ec Add llvm-exegesis tool. 
Summary:
[llvm-exegesis][RFC] Automatic Measurement of Instruction Latency/Uops

This is the code corresponding to the RFC "llvm-exegesis Automatic Measurement of Instruction Latency/Uops".

The RFC is available on the LLVM mailing lists as well as the following document
for easier reading:
https://docs.google.com/document/d/1QidaJMJUyQdRrFKD66vE1_N55whe0coQ3h1GpFzz27M/edit?usp=sharing

Subscribers: mgorny, gchatelet, orwant, llvm-commits

Differential Revision: https://reviews.llvm.org/D44519

llvm-svn: 329156
 2018-04-04 08:13:32 +00:00