Jay Foad b22721f01a [AMDGPU] GCNDPPCombine: don't shrink V_ADD_CO_U32 if carry out is used ...

Don't shrink VOP3 instructions if there are any uses of a carry-out
operand, because the shrunken form of the instruction would write the
carry-out to vcc instead of to a virtual register.

Differential Revision: https://reviews.llvm.org/D100760

2021-04-20 09:17:52 +01:00

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