[Hexagon] Factor out some common code in HexagonEarlyIfConv.cpp, NFC
llvm-svn: 299367
diff --git a/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp b/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp
index 7ee2e43..67af947 100644
--- a/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp
@@ -537,18 +537,16 @@
// the code size. If the predicated blocks are smaller than a packet size,
// approximate the spare room in the packet that could be filled with the
// predicated/speculated instructions.
- unsigned TS = 0, FS = 0, Spare = 0;
- if (FP.TrueB) {
- TS = std::distance(FP.TrueB->begin(), FP.TrueB->getFirstTerminator());
- if (TS < HEXAGON_PACKET_SIZE)
- Spare += HEXAGON_PACKET_SIZE-TS;
- }
- if (FP.FalseB) {
- FS = std::distance(FP.FalseB->begin(), FP.FalseB->getFirstTerminator());
- if (FS < HEXAGON_PACKET_SIZE)
- Spare += HEXAGON_PACKET_SIZE-FS;
- }
- unsigned TotalIn = TS+FS;
+ auto TotalCount = [] (const MachineBasicBlock *B, unsigned &Spare) {
+ if (!B)
+ return 0u;
+ unsigned T = std::distance(B->begin(), B->getFirstTerminator());
+ if (T < HEXAGON_PACKET_SIZE)
+ Spare += HEXAGON_PACKET_SIZE-T;
+ return T;
+ };
+ unsigned Spare = 0;
+ unsigned TotalIn = TotalCount(FP.TrueB, Spare) + TotalCount(FP.FalseB, Spare);
DEBUG(dbgs() << "Total number of instructions to be predicated/speculated: "
<< TotalIn << ", spare room: " << Spare << "\n");
if (TotalIn >= SizeLimit+Spare)