[llvm-commits] [llvm] r82462 - /llvm/trunk/lib/Transforms/Scalar/CodeGenLICM.cpp
Dan Gohman
gohman at apple.com
Mon Sep 21 10:53:35 PDT 2009
Author: djg
Date: Mon Sep 21 12:53:35 2009
New Revision: 82462
URL: http://llvm.org/viewvc/llvm-project?rev=82462&view=rev
Log:
Remove the special-case for constants in PHI nodes; it's not really
helpful, and it didn't correctly handle the case of constants input
to PHIs for backedges.
Modified:
llvm/trunk/lib/Transforms/Scalar/CodeGenLICM.cpp
Modified: llvm/trunk/lib/Transforms/Scalar/CodeGenLICM.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/CodeGenLICM.cpp?rev=82462&r1=82461&r2=82462&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/CodeGenLICM.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/CodeGenLICM.cpp Mon Sep 21 12:53:35 2009
@@ -60,9 +60,6 @@
for (BasicBlock::iterator BBI = BB->begin(), BBE = BB->end();
BBI != BBE; ++BBI) {
Instruction *I = BBI;
- // Don't bother hoisting constants out of loop-header phi nodes.
- if (BB == L->getHeader() && isa<PHINode>(I))
- continue;
// TODO: For now, skip all intrinsic instructions, because some of them
// can require their operands to be constants, and we don't want to
// break that.
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