Zheng Chen 26ba160d47 [PowerPC] when folding rlwinm+rlwinm. to andi., we should use first rlwinm ...

input reg.

%2:gprc = RLWINM %1:gprc, 27, 5, 10
%3:gprc = RLWINM_rec %2:gprc, 8, 5, 10, implicit-def $cr0

==>

%3:gprc = ANDI_rec %1, 0, implicit-def $cr0

we should use %1 instead of %2 as ANDI_rec input.

Reviewed By: steven.zhang

Differential Revision: https://reviews.llvm.org/D71885

2020-01-08 20:59:08 -05:00

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