Rollup merge of rust-lang#83902 - alexcrichton:update-llvm, r=nikic

Dylan-DPC · web-flow · commit 8cee7b79476b · 2021-04-06T17:42:32.000+02:00
Update LLVM to support more wasm simd ops

Adds a commit with support for i64 simd comparisons for the wasm target
diff --git a/src/llvm-project b/src/llvm-project
@@ -1 +1 @@
-Subproject commit 0abbcc04d8375661a0637896b9ae5dc37a99dc70
+Subproject commit 171991e30966695fd118c90ebbb2eeec5098ccce
