[llvm] [InstCombine] Use more inline elements in a SmallVector (PR #100942)

[Craig Topper via llvm-commits]

================
@@ -1500,7 +1500,7 @@ Instruction *InstCombinerImpl::visitCallInst(CallInst &CI) {
   // Don't try to simplify calls without uses. It will not do anything useful,
   // but will result in the following folds being skipped.
   if (!CI.use_empty()) {
-    SmallVector<Value *, 4> Args;
+    SmallVector<Value *, 8> Args;
----------------
topperc wrote:

Can this be rewritten as

```
SmallVector<Value *, 8> Args(CI.arg_begin(), CI.arg_end());
```

https://github.com/llvm/llvm-project/pull/100942