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From: "wschmidt at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/103623] [12 Regression] error: unable to generate
 reloads (ICE in curr_insn_transform, at lra-constraints.c:4132), or error:
 insn does not satisfy its constraints (ICE in extract_constrain_insn_cached,
 at recog.c:2682)
Date: Sun, 12 Dec 2021 17:29:40 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103623

--- Comment #5 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Agreed that this needs a new attribute, and digging through the macros used=
 to
guard the associated patterns, this really does need to be restricted to the
case when long double is implemented by IBM-128.  Safest is to use
FLOAT128_2REG_P (TFmode), i.e., applied to the mode used for long double, w=
hich
is what enables the corresponding pack<mode> and unpack<mode> patterns.=