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[LLVM-C] Improve Bindings to The Internalize Pass

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Summary: Adds a binding to the internalize pass that allows the caller to pass a function pointer that acts as the visibility-preservation predicate.  Previously, one could only pass an unsigned value (not LLVMBool?) that directed the pass to consider "main" or not.

Reviewers: whitequark, deadalnix, harlanhaskins

Reviewed By: whitequark, harlanhaskins

Subscribers: kren1, hiraditya, llvm-commits, harlanhaskins

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62456

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@366777 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Robert Widmann 2019-07-23 04:56:44 +00:00
parent b08d3b0692
commit 2622ae5029
2 changed files with 24 additions and 0 deletions
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15
include/llvm-c/Transforms/IPO.h
View File

@ -67,6 +67,21 @@ void LLVMAddIPSCCPPass(LLVMPassManagerRef PM);
/** See llvm::createInternalizePass function. */
void LLVMAddInternalizePass(LLVMPassManagerRef, unsigned AllButMain);
/**
* Create and add the internalize pass to the given pass manager with the
* provided preservation callback.
*
* The context parameter is forwarded to the callback on each invocation.
* As such, it is the responsibility of the caller to extend its lifetime
* until execution of this pass has finished.
*
* @see llvm::createInternalizePass function.
*/
void LLVMAddInternalizePassWithMustPreservePredicate(
LLVMPassManagerRef PM,
void *Context,
LLVMBool (*MustPreserve)(LLVMValueRef, void *));
/** See llvm::createStripDeadPrototypesPass function. */
void LLVMAddStripDeadPrototypesPass(LLVMPassManagerRef PM);

9
lib/Transforms/IPO/IPO.cpp
View File

@ -121,6 +121,15 @@ void LLVMAddInternalizePass(LLVMPassManagerRef PM, unsigned AllButMain) {
unwrap(PM)->add(createInternalizePass(PreserveMain));
}
void LLVMAddInternalizePassWithMustPreservePredicate(
LLVMPassManagerRef PM,
void *Context,
LLVMBool (*Pred)(LLVMValueRef, void *)) {
unwrap(PM)->add(createInternalizePass([=](const GlobalValue &GV) {
return Pred(wrap(&GV), Context) == 0 ? false : true;
}));
}
void LLVMAddStripDeadPrototypesPass(LLVMPassManagerRef PM) {
unwrap(PM)->add(createStripDeadPrototypesPass());
}