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[AArch64] Avoid pairing loads with same result reg

Authored by congzhe on Sep 22 2020, 1:21 PM.

Description

[AArch64] Avoid pairing loads with same result reg

When pairing ldr instructions to an ldp instruction, we cannot pair two ldr
destination registers where one is a sub or super register of the other.

Reviewed By: fhahn

Differential Revision: https://reviews.llvm.org/D86906

Details

Committed
dancgrSep 22 2020, 1:25 PM
Reviewer
fhahn
Differential Revision
D86906: [AArch64] Avoid pairing loads with same result reg
Parents
rGcf112382ddd0: [ThinLTO] Option to bypass function importing.
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