[clang] [lld] [llvm] [LLVM][WebAssembly] Implement branch hinting proposal (PR #146230)

[Heejin Ahn via cfe-commits]

================
@@ -2562,8 +2565,9 @@ void 
WebAssemblyCFGStackify::rewriteDepthImmediates(MachineFunction &MF) {
           MO = MachineOperand::CreateImm(getDelegateDepth(Stack, MO.getMBB()));
         else if (MI.getOpcode() == WebAssembly::RETHROW)
           MO = MachineOperand::CreateImm(getRethrowDepth(Stack, MO.getMBB()));
-        else
+        else {
           MO = MachineOperand::CreateImm(getBranchDepth(Stack, MO.getMBB()));
+        }
----------------
aheejin wrote:

Why add braces here?

https://github.com/llvm/llvm-project/pull/146230
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