[PATCH] D28236: InstCombine: Fold cos(-x) -> cos(x)

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added inline comments.


================
Comment at: lib/Transforms/InstCombine/InstCombineCalls.cpp:1641
+  case Intrinsic::cos:
+  case Intrinsic::amdgcn_cos: {
+    Value *SrcSrc;
----------------
davide wrote:
> While here, I also noticed the `amdgcn_cos` is not documented in `LangRef`, maybe it could be (or somewhere else)
Do we have formal documentation for target specific intrinsics? I thought only generic intrinsics belonged in the LangRef


https://reviews.llvm.org/D28236