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Author: BeMg

llvm/test/MachineVerifier/RISCV/subreg-liveness.mir

@@ -1,6 +1,11 @@
 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
 # RUN: llc -mtriple=riscv64 -mattr=+v -run-pass=none %s -o - | FileCheck %s
 
+# During the MachineVerifier, it assumes that used registers have been defined
+# In this test case, while $v12_v13_v14_v15_v16 covers $v14_v15,
+# $v14_v15 is not a sub-register of $v14m2 even though they share the same register.
+# This corner case can be resolved by checking the register using RegUnit.
+
 ...
 ---
 name:            func