6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-17 04:24:00 +00:00
Code Issues Projects Releases Wiki Activity

Revert r70645 for now; it's causing a variety of regressions.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70661 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2009-05-03 05:46:20 +00:00
parent 0e670dfa27
commit f9a77b77c2
9 changed files with 119 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
lib/Transforms/Utils/BasicBlockUtils.cpp
View File

@ -78,8 +78,9 @@ void llvm::FoldSingleEntryPHINodes(BasicBlock *BB) {
/// DeleteDeadPHIs - Examine each PHI in the given block and delete it if it
/// is dead. Also recursively delete any operands that become dead as
/// a result. This includes tracing the def-use list from the PHI to see if
/// it is ultimately unused or if it reaches an unused cycle.
void llvm::DeleteDeadPHIs(BasicBlock *BB) {
/// it is ultimately unused or if it reaches an unused cycle. If a
/// ValueDeletionListener is specified, it is notified of the deletions.
void llvm::DeleteDeadPHIs(BasicBlock *BB, ValueDeletionListener *VDL) {
// Recursively deleting a PHI may cause multiple PHIs to be deleted
// or RAUW'd undef, so use an array of WeakVH for the PHIs to delete.
SmallVector<WeakVH, 8> PHIs;
@ -89,7 +90,7 @@ void llvm::DeleteDeadPHIs(BasicBlock *BB) {
for (unsigned i = 0, e = PHIs.size(); i != e; ++i)
if (PHINode *PN = dyn_cast_or_null<PHINode>(PHIs[i].operator Value*()))
RecursivelyDeleteDeadPHINode(PN);
RecursivelyDeleteDeadPHINode(PN, VDL);
}
/// MergeBlockIntoPredecessor - Attempts to merge a block into its predecessor,