Changes in directory llvm/lib/Transforms/IPO:
ConstantMerge.cpp updated: 1.35 -> 1.36
---
Log message:
in addition to merging, constantmerge should also delete trivially dead globals,
in order to clean up after simplifylibcalls.
---
Diffs of the changes: (+8 -1)
ConstantMerge.cpp | 9 ++++++++-
1 files changed, 8 insertions(+), 1 deletion(-)
Index: llvm/lib/Transforms/IPO/ConstantMerge.cpp
diff -u llvm/lib/Transforms/IPO/ConstantMerge.cpp:1.35
llvm/lib/Transforms/IPO/ConstantMerge.cpp:1.36
--- llvm/lib/Transforms/IPO/ConstantMerge.cpp:1.35 Mon Feb 5 17:32:05 2007
+++ llvm/lib/Transforms/IPO/ConstantMerge.cpp Fri Apr 13 20:11:54 2007
@@ -61,7 +61,13 @@
// invalidating the Constant* pointers in CMap.
//
for (Module::global_iterator GV = M.global_begin(), E = M.global_end();
- GV != E; ++GV)
+ GV != E; ++GV) {
+ // If this GV is dead, remove it.
+ GV->removeDeadConstantUsers();
+ if (GV->use_empty() && GV->hasInternalLinkage()) {
+ (GV++)->eraseFromParent();
+ }
+
// Only process constants with initializers.
if (GV->isConstant() && GV->hasInitializer()) {
Constant *Init = GV->getInitializer();
@@ -80,6 +86,7 @@
Slot = GV;
}
}
+ }
if (Replacements.empty())
return MadeChange;
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