[llvm-branch-commits] [BOLT][NFCI] Use heuristic for matching split global functions (PR #90429)

[Amir Ayupov via llvm-branch-commits]

https://github.com/aaupov edited https://github.com/llvm/llvm-project/pull/90429
___
llvm-branch-commits mailing list
llvm-branch-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits

[llvm-branch-commits] [BOLT][NFCI] Use heuristic for matching split global functions (PR #90429)

[Amir Ayupov via llvm-branch-commits]

https://github.com/aaupov edited https://github.com/llvm/llvm-project/pull/90429
___
llvm-branch-commits mailing list
llvm-branch-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits

[llvm-branch-commits] [BOLT][NFCI] Use heuristic for matching split global functions (PR #90429)

[Amir Ayupov via llvm-branch-commits]

https://github.com/aaupov edited https://github.com/llvm/llvm-project/pull/90429
___
llvm-branch-commits mailing list
llvm-branch-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits

[llvm-branch-commits] [BOLT][NFCI] Use heuristic for matching split global functions (PR #90429)

[Amir Ayupov via llvm-branch-commits]

https://github.com/aaupov edited https://github.com/llvm/llvm-project/pull/90429
___
llvm-branch-commits mailing list
llvm-branch-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits

[llvm-branch-commits] [BOLT][NFCI] Use heuristic for matching split global functions (PR #90429)

[Amir Ayupov via llvm-branch-commits]

https://github.com/aaupov updated 
https://github.com/llvm/llvm-project/pull/90429


___
llvm-branch-commits mailing list
llvm-branch-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits

[llvm-branch-commits] [BOLT][NFCI] Use heuristic for matching split global functions (PR #90429)

[Amir Ayupov via llvm-branch-commits]

https://github.com/aaupov updated 
https://github.com/llvm/llvm-project/pull/90429


___
llvm-branch-commits mailing list
llvm-branch-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits

[llvm-branch-commits] [BOLT][NFCI] Use heuristic for matching split global functions (PR #90429)

[Amir Ayupov via llvm-branch-commits]

https://github.com/aaupov edited https://github.com/llvm/llvm-project/pull/90429
___
llvm-branch-commits mailing list
llvm-branch-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits

[llvm-branch-commits] [BOLT][NFCI] Use heuristic for matching split global functions (PR #90429)

[via llvm-branch-commits]

llvmbot wrote:




@llvm/pr-subscribers-bolt

Author: Amir Ayupov (aaupov)


Changes

There should be no functional change, only faster fragment matching for
large BOLTed binaries where all fragments of global parent functions
are put under bolt-pseudo.o file symbol.

Test Plan: NFC


---
Full diff: https://github.com/llvm/llvm-project/pull/90429.diff


1 Files Affected:

- (modified) bolt/lib/Rewrite/RewriteInstance.cpp (+5) 


``diff
diff --git a/bolt/lib/Rewrite/RewriteInstance.cpp 
b/bolt/lib/Rewrite/RewriteInstance.cpp
index 8eb2e5a9d9120a..d92775e16b7cf1 100644
--- a/bolt/lib/Rewrite/RewriteInstance.cpp
+++ b/bolt/lib/Rewrite/RewriteInstance.cpp
@@ -1511,6 +1511,11 @@ void RewriteInstance::registerFragments() {
 
 uint64_t ParentAddress{0};
 
+// Check if containing FILE symbol is BOLT emitted synthetic symbol marking
+// local fragments of global parents.
+if (cantFail(FSI[-1].getName()) == getBOLTFileSymbolName())
+  goto registerParent;
+
 // BOLT split fragment symbols are emitted just before the main function
 // symbol.
 for (ELFSymbolRef NextSymbol = Symbol; NextSymbol < StopSymbol;

``




https://github.com/llvm/llvm-project/pull/90429
___
llvm-branch-commits mailing list
llvm-branch-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits

[llvm-branch-commits] [BOLT][NFCI] Use heuristic for matching split global functions (PR #90429)

[Amir Ayupov via llvm-branch-commits]

https://github.com/aaupov created 
https://github.com/llvm/llvm-project/pull/90429

There should be no functional change, only faster fragment matching for
large BOLTed binaries where all fragments of global parent functions
are put under bolt-pseudo.o file symbol.

Test Plan: NFC



___
llvm-branch-commits mailing list
llvm-branch-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits