[PATCH] [InstCombine] Add a new formula for SMIN.

[David Majnemer]

Totally righteous, LGTM.


================
Comment at: lib/Transforms/InstCombine/InstCombineSelect.cpp:91
@@ +90,3 @@
+    // Y >s C ? ~Y : ~C == ~Y <s ~C ? ~Y : ~C = SMIN(~Y, ~C)
+    if (ConstantInt *C2 = dyn_cast<ConstantInt>(FalseVal))
+      if (C1->getType() == C2->getType() && ~C1->getValue() == C2->getValue() &&
----------------
Please brace this because it dominates a braced control-flow statement.  Also, we can just use `const auto *C2` here, the type is pretty clear.

http://reviews.llvm.org/D9352

EMAIL PREFERENCES
  http://reviews.llvm.org/settings/panel/emailpreferences/