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authordim <dim@FreeBSD.org>2011-06-12 18:01:31 +0000
committerdim <dim@FreeBSD.org>2011-06-12 18:01:31 +0000
commitd4c7939beafe09c033866ebd290e274af0cc826d (patch)
treea9b264321873e7d25e69b8671c9f705ebc6d30ee /contrib/llvm/lib/CodeGen/VirtRegMap.cpp
parentb164882ef981a8ed5c085469231831e221fa1323 (diff)
parentece02cd5829cea836e9365b0845a8ef042d17b0a (diff)
downloadFreeBSD-src-d4c7939beafe09c033866ebd290e274af0cc826d.zip
FreeBSD-src-d4c7939beafe09c033866ebd290e274af0cc826d.tar.gz
Upgrade our copy of llvm/clang to r132879, from upstream's trunk.
Diffstat (limited to 'contrib/llvm/lib/CodeGen/VirtRegMap.cpp')
-rw-r--r--contrib/llvm/lib/CodeGen/VirtRegMap.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/contrib/llvm/lib/CodeGen/VirtRegMap.cpp b/contrib/llvm/lib/CodeGen/VirtRegMap.cpp
index 226b78f..7557979 100644
--- a/contrib/llvm/lib/CodeGen/VirtRegMap.cpp
+++ b/contrib/llvm/lib/CodeGen/VirtRegMap.cpp
@@ -42,6 +42,7 @@
using namespace llvm;
STATISTIC(NumSpills , "Number of register spills");
+STATISTIC(NumIdCopies, "Number of identity moves eliminated after rewriting");
//===----------------------------------------------------------------------===//
// VirtRegMap implementation
@@ -318,6 +319,7 @@ void VirtRegMap::rewrite(SlotIndexes *Indexes) {
// Finally, remove any identity copies.
if (MI->isIdentityCopy()) {
+ ++NumIdCopies;
if (MI->getNumOperands() == 2) {
DEBUG(dbgs() << "Deleting identity copy.\n");
RemoveMachineInstrFromMaps(MI);
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