[PATCH] D62456: [LLVM-C] Improve Bindings to The Internalize Pass

[Robert Widmann via Phabricator via llvm-commits]

CodaFi created this revision.
CodaFi added reviewers: whitequark, deadalnix.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a project: LLVM.

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.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D62456

Files:
  llvm/include/llvm-c/Transforms/IPO.h
  llvm/lib/Transforms/IPO/IPO.cpp


Index: llvm/lib/Transforms/IPO/IPO.cpp
===================================================================
--- llvm/lib/Transforms/IPO/IPO.cpp
+++ llvm/lib/Transforms/IPO/IPO.cpp
@@ -120,6 +120,15 @@
   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());
 }
Index: llvm/include/llvm-c/Transforms/IPO.h
===================================================================
--- llvm/include/llvm-c/Transforms/IPO.h
+++ llvm/include/llvm-c/Transforms/IPO.h
@@ -67,6 +67,12 @@
 /** See llvm::createInternalizePass function. */
 void LLVMAddInternalizePass(LLVMPassManagerRef, unsigned AllButMain);
 
+/** See llvm::createInternalizePass function. */
+void LLVMAddInternalizePassWithMustPreservePredicate(
+    LLVMPassManagerRef PM,
+    void *Context,
+    LLVMBool (*MustPreserve)(LLVMValueRef, void *));
+
 /** See llvm::createStripDeadPrototypesPass function. */
 void LLVMAddStripDeadPrototypesPass(LLVMPassManagerRef PM);
 


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