LU-JOHN
c245d764b8
[CodeGen] Do not remove IMPLICIT_DEF unless all uses have undef flag added ( #188133 )
...
Do not remove IMPLICIT_DEF of a physreg unless all uses have an undef
flag added. Previously, only the first use instruction had undef flags
added. This will cause a failure in machine instruction verification.
Multi-instruction uses tested in AMDGPU/multi-use-implicit-def.mir and
X86/multi-use-implicit-def.mir.
---------
Signed-off-by: John Lu <John.Lu@amd.com>
2026-04-01 10:11:42 -05:00
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