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authorJakob Stoklund Olesen <stoklund@2pi.dk>2011-07-05 15:38:37 +0000
committerJakob Stoklund Olesen <stoklund@2pi.dk>2011-07-05 15:38:37 +0000
commit2b0f4abfbe1c651fe6bd233bf89373d276c535a8 (patch)
treee89db8a89296c3cc5a474bec38f827427de6ad33 /lib/CodeGen/RegAllocGreedy.cpp
parentdedd6ee135f886e219035b2cf5957ce492f90ed1 (diff)
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Tweak comment and debug output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134412 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocGreedy.cpp')
-rw-r--r--lib/CodeGen/RegAllocGreedy.cpp5
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp
index acf7f95..195e483 100644
--- a/lib/CodeGen/RegAllocGreedy.cpp
+++ b/lib/CodeGen/RegAllocGreedy.cpp
@@ -958,7 +958,8 @@ void RAGreedy::splitAroundRegion(LiveInterval &VirtReg,
//
// ~ Interference after last use.
// |---o---o--o| Live-out on stack, late last use.
- // =========____ Copy to stack after LSP, overlap MainIntv.
+ // ============ Copy to stack after LSP, overlap MainIntv.
+ // \_____ Stack interval is live-out.
//
if (!RegOut && Intf.first() > BI.LastUse.getBoundaryIndex()) {
assert(RegIn && "Stack-in, stack-out should already be handled");
@@ -998,8 +999,8 @@ void RAGreedy::splitAroundRegion(LiveInterval &VirtReg,
// The interference is overlapping somewhere we wanted to use MainIntv. That
// means we need to create a local interval that can be allocated a
// different register.
- DEBUG(dbgs() << ", creating local interval.\n");
unsigned LocalIntv = SE->openIntv();
+ DEBUG(dbgs() << ", creating local interval " << LocalIntv << ".\n");
// We may be creating copies directly between MainIntv and LocalIntv,
// bypassing the stack interval. When we do that, we should never use the