[PATCH] D28724: Use getLoopLatch in place of isLoopSimplifyForm
Xin Tong via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Jan 13 22:17:14 PST 2017
trentxintong updated this revision to Diff 84429.
trentxintong added a comment.
Remove a redundant getLoopLatch().
https://reviews.llvm.org/D28724
Files:
lib/Analysis/LoopInfo.cpp
Index: lib/Analysis/LoopInfo.cpp
===================================================================
--- lib/Analysis/LoopInfo.cpp
+++ lib/Analysis/LoopInfo.cpp
@@ -211,8 +211,8 @@
MDNode *Loop::getLoopID() const {
MDNode *LoopID = nullptr;
- if (isLoopSimplifyForm()) {
- LoopID = getLoopLatch()->getTerminator()->getMetadata(LLVMContext::MD_loop);
+ if (BasicBlock *Latch = getLoopLatch()) {
+ LoopID = Latch->getTerminator()->getMetadata(LLVMContext::MD_loop);
} else {
// Go through each predecessor of the loop header and check the
// terminator for the metadata.
@@ -248,8 +248,8 @@
assert(LoopID->getNumOperands() > 0 && "Loop ID needs at least one operand");
assert(LoopID->getOperand(0) == LoopID && "Loop ID should refer to itself");
- if (isLoopSimplifyForm()) {
- getLoopLatch()->getTerminator()->setMetadata(LLVMContext::MD_loop, LoopID);
+ if (BasicBlock *Latch = getLoopLatch()) {
+ Latch->getTerminator()->setMetadata(LLVMContext::MD_loop, LoopID);
return;
}
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