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[Power9] Add __float128 support in the backend for bitcast to a i128

Description

[Power9] Add __float128 support in the backend for bitcast to a i128

Add support to allow bit-casting from f128 to i128 and then
extracting 64 bits from the result.

Differential Revision: https://reviews.llvm.org/D49507

Details

Committed
stefanpOct 23 2018, 10:11 AM
Differential Revision
D49507: [Power9] Add __float128 support in the backend for bitcast to a i128
Parents
rL345052: [IR] remove fake binop queries for not/neg
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