[PATCH] D158548: Limit bswap and bitreverse matching to legal integer width

[Craig Topper via Phabricator via llvm-commits]

craig.topper added inline comments.


================
Comment at: llvm/test/Transforms/InstCombine/bitreverse.ll:265
+define i32 @illegal_width(i32 %x) {
+; CHECK-LABEL: @illegal_width
+; CHECK-NOT: call i9 @llvm.bitreverse.i9
----------------
The CHECK lines in this file are generated by a script, update_llc_test_checks.py. We shouldn't use CHECK-NOT in such tests as the script will just overwrite it the next time someone runs.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D158548/new/

https://reviews.llvm.org/D158548