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From: "dje at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/99718] [11 regression] ICE in new test case
 gcc.target/powerpc/pr98914.c  for 32 bits
Date: Thu, 25 Mar 2021 16:37:47 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99718

--- Comment #8 from David Edelsohn <dje at gcc dot gnu.org> ---
Xionghu, please do not write "can't" when you mean "it's difficult" or "it
hasn't been implemented" or "it's too inefficient" (such as moving the data
through memory).  Please be very precise in your explanations.

I never wrote that there is no need variable vec_insert support for m32 bui=
ld.

Does LLVM generate good code for this operation in 32 bit mode?

As Jakub said, this is a P1 blocker.  We may want to fix this differently in
the short term than the long term.  We may want to TEMPORARILY avoid this
situation for m32 configuration for the upcoming release but GCC should
generate a better instruction sequence in the next release cycle.=