Christudasan Devadasan 3c5cea650d [AMDGPU]: Add implicit-def to the BB prolog (#112872) ...

IMPLICIT_DEF inserted for a wwm-register at the
very first block or the predecessor block where
it is used for sgpr spilling can appear at a block
begin that requires spill-insertion during per-lane
VGPR regalloc phase. The presence of the IMPLICIT_DEF
currently breaks the BB prolog.

Fixes: SWDEV-490717

2024-10-21 13:21:16 +05:30

352 KiB

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