Serge Pavlov 9fc58f1820 [PowerPC] Support of ppc_fp128 in lowering of llvm.is_fpclass ...

PowerPC supports `ppc_fp128`, which is not an IEEE floating point
type. The generic lowering of llvm.is_fpclass could not handle it
properly. This change extends the generic lowering code to
support `ppc_fp128`.

The change was tested on emulator using runtime tests from
https://reviews.llvm.org/D112933 and the patch for clang
https://reviews.llvm.org/D112932.

Differential Revision: https://reviews.llvm.org/D113908

2022-04-29 11:10:47 +07:00

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