[PPC] Early exit loop. NFC.
llvm-svn: 255497
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index 176a8b3..242c1ea 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -10801,8 +10801,11 @@
// boundary so that the entire loop fits in one instruction-cache line.
uint64_t LoopSize = 0;
for (auto I = ML->block_begin(), IE = ML->block_end(); I != IE; ++I)
- for (auto J = (*I)->begin(), JE = (*I)->end(); J != JE; ++J)
+ for (auto J = (*I)->begin(), JE = (*I)->end(); J != JE; ++J) {
LoopSize += TII->GetInstSizeInBytes(J);
+ if (LoopSize > 32)
+ break;
+ }
if (LoopSize > 16 && LoopSize <= 32)
return 5;