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Remove the very substantial, largely unmaintained legacy PGO

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infrastructure.

This was essentially work toward PGO based on a design that had several
flaws, partially dating from a time when LLVM had a different
architecture, and with an effort to modernize it abandoned without being
completed. Since then, it has bitrotted for several years further. The
result is nearly unusable, and isn't helping any of the modern PGO
efforts. Instead, it is getting in the way, adding confusion about PGO
in LLVM and distracting everyone with maintenance on essentially dead
code. Removing it paves the way for modern efforts around PGO.

Among other effects, this removes the last of the runtime libraries from
LLVM. Those are being developed in the separate 'compiler-rt' project
now, with somewhat different licensing specifically more approriate for
runtimes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191835 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth
2013-10-02 15:42:23 +00:00
parent 6ffce6fa92
commit dd5d86d992
61 changed files with 12 additions and 8640 deletions
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58
include/llvm/Analysis/Passes.h
View File

@@ -93,64 +93,6 @@ namespace llvm {
//
ImmutablePass *createObjCARCAliasAnalysisPass();
//===--------------------------------------------------------------------===//
//
// createProfileLoaderPass - This pass loads information from a profile dump
// file.
//
ModulePass *createProfileLoaderPass();
extern char &ProfileLoaderPassID;
//===--------------------------------------------------------------------===//
//
// createProfileMetadataLoaderPass - This pass loads information from a
// profile dump file and sets branch weight metadata.
//
ModulePass *createProfileMetadataLoaderPass();
extern char &ProfileMetadataLoaderPassID;
//===--------------------------------------------------------------------===//
//
// createNoProfileInfoPass - This pass implements the default "no profile".
//
ImmutablePass *createNoProfileInfoPass();
//===--------------------------------------------------------------------===//
//
// createProfileEstimatorPass - This pass estimates profiling information
// instead of loading it from a previous run.
//
FunctionPass *createProfileEstimatorPass();
extern char &ProfileEstimatorPassID;
//===--------------------------------------------------------------------===//
//
// createProfileVerifierPass - This pass verifies profiling information.
//
FunctionPass *createProfileVerifierPass();
//===--------------------------------------------------------------------===//
//
// createPathProfileLoaderPass - This pass loads information from a path
// profile dump file.
//
ModulePass *createPathProfileLoaderPass();
extern char &PathProfileLoaderPassID;
//===--------------------------------------------------------------------===//
//
// createNoPathProfileInfoPass - This pass implements the default
// "no path profile".
//
ImmutablePass *createNoPathProfileInfoPass();
//===--------------------------------------------------------------------===//
//
// createPathProfileVerifierPass - This pass verifies path profiling
// information.
//
ModulePass *createPathProfileVerifierPass();
//===--------------------------------------------------------------------===//
//
// createDSAAPass - This pass implements simple context sensitive alias