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* [llvm-exegesis] Generate snippet setup code.Clement Courbet2018-06-251-3/+8
| | | | | | | | | | | | | | | Summary: This ensures that the snippet always sees the same values for registers, making measurements reproducible. This will also allow exploring different values. Reviewers: gchatelet Subscribers: tschuett, llvm-commits Differential Revision: https://reviews.llvm.org/D48542 llvm-svn: 335465
* [llvm-exegesis][NFC] Fix `Operand` class comments.Clement Courbet2018-06-251-2/+2
| | | | llvm-svn: 335450
* [llvm-exegesis] Remove noexcept in r335105.Clement Courbet2018-06-201-4/+4
| | | | | | gcc checks for transitivity (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53903) llvm-svn: 335109
* [llvm-exegesis] Use a Prototype to defer picking a value for free vars.Guillaume Chatelet2018-06-201-3/+33
| | | | | | | | | | | | Summary: Introducing a Prototype object to capture Variables that must be set but keeps degrees of freedom as Invalid. This allows exploring non constraint variables later on. Reviewers: courbet Subscribers: tschuett, llvm-commits Differential Revision: https://reviews.llvm.org/D48316 llvm-svn: 335105
* [llvm-exegesis] Cleaner design without mutable data.Guillaume Chatelet2018-06-131-22/+33
| | | | | | | | | | | | Summary: Previous design was relying on the 'mutate' keyword and was quite confusing. This version separate mutable from immutable data and makes it clearer what changes and what doesn't. Reviewers: courbet Subscribers: tschuett, llvm-commits Differential Revision: https://reviews.llvm.org/D48020 llvm-svn: 334596
* reland r332579: [llvm-exegesis] Update to cover latency through another opcode.Clement Courbet2018-05-171-0/+150
| | | | | | | | | | | | | | Restructuring the code to measure latency and uops. The end goal is to have this program spawn another process to deal with SIGILL and other malformed programs. It is not yet the case in this redesign, it is still the main program that runs the code (and may crash). It now uses BitVector instead of Graph for performance reasons. https://reviews.llvm.org/D46821 (with fixed ARM tests) Authored by Guillaume Chatelet llvm-svn: 332592
* Revert r332579 "[llvm-exegesis] Update to cover latency through another opcode."Clement Courbet2018-05-171-150/+0
| | | | | | The revision failed to update the ARM tests. llvm-svn: 332580
* [llvm-exegesis] Update to cover latency through another opcode.Clement Courbet2018-05-171-0/+150
Restructuring the code to measure latency and uops. The end goal is to have this program spawn another process to deal with SIGILL and other malformed programs. It is not yet the case in this redesign, it is still the main program that runs the code (and may crash). It now uses BitVector instead of Graph for performance reasons. https://reviews.llvm.org/D46821 Authored by Guillaume Chatelet llvm-svn: 332579
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