[PATCH] D90829: [GlobalISel][TableGen] fix seg fault for zero instruction

Bjorn Pettersson via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Nov 11 13:39:54 PST 2020


bjope added inline comments.


================
Comment at: llvm/test/TableGen/GlobalISelEmitter-zero-instr.td:6
+
+// CHECK: return MatchTable
+def : Pat<(zext (i16 (trunc i32:$src))),
----------------
Nice that we no longer crash, but I don't know how relevant this check is. What about checking that we get the "warning: Skipped pattern: Dst pattern root isn't a known leaf" message instead?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D90829/new/

https://reviews.llvm.org/D90829



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