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Author SHA1 Message Date
Guillaume Chatelet fb94354d2d [llvm-exegesis] Provide a way to handle memory instructions. 
Summary:
And implement memory instructions on X86.

This fixes PR36906.

Reviewers: gchatelet

Reviewed By: gchatelet

Subscribers: lebedev.ri, filcab, mgorny, tschuett, RKSimon, llvm-commits

Differential Revision: https://reviews.llvm.org/D48935

llvm-svn: 338567
 2018-08-01 14:41:45 +00:00
Clement Courbet e785169fce [llvm-exegesis] ExegisX86Target::setRegToConstant() should depend on the subtarget features. 
Summary: This fixes PR38008.

Reviewers: gchatelet, RKSimon

Subscribers: tschuett, craig.topper, llvm-commits

Differential Revision: https://reviews.llvm.org/D48820

llvm-svn: 336171
 2018-07-03 06:17:05 +00:00
Clement Courbet 4860b98443 [llvm-exegesis] Get the BenchmarkRunner from the ExegesisTarget. 
Summary:
This allows targets to override code generation for some instructions.
As an example of override, this also moves ad-hoc instruction filtering
for X86 into the X86 ExegesisTarget.

Reviewers: gchatelet

Subscribers: mgorny, tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D48587

llvm-svn: 335582
 2018-06-26 08:49:30 +00:00
Clement Courbet 6a60f2fcfc [llvm-exegesis] Fix warning in r22752: Initialize IsSnippetSetupComplete. 
llvm-svn: 335467
 2018-06-25 13:39:50 +00:00
Clement Courbet a51efc266c [llvm-exegesis] Generate snippet setup code. 
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
 2018-06-25 13:12:02 +00:00
Clement Courbet 6fd00e32e5 [llvm-exegesis] Add mechanism to add target-specific passes. 
Summary:
createX86FloatingPointStackifierPass is disabled until we handle
TracksLiveness correctly.

Reviewers: gchatelet

Subscribers: mgorny, tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D48360

llvm-svn: 335117
 2018-06-20 11:54:35 +00:00
Peter Collingbourne 9a45114b3c CodeGen: Add a dwo output file argument to addPassesToEmitFile and hook it up to dwo output. 
Part of PR37466.

Differential Revision: https://reviews.llvm.org/D47089

llvm-svn: 332881
 2018-05-21 20:16:41 +00:00
Clement Courbet 0e69e2d747 reland r332579: [llvm-exegesis] Update to cover latency through another opcode. 
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
 2018-05-17 10:52:18 +00:00
Clement Courbet 295a554ce4 Revert r332579 "[llvm-exegesis] Update to cover latency through another opcode." 
The revision failed to update the ARM tests.

llvm-svn: 332580
 2018-05-17 08:12:29 +00:00
Clement Courbet ee110fb735 [llvm-exegesis] Update to cover latency through another opcode. 
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
 2018-05-17 07:38:21 +00:00