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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug rtl-optimization/98287] [10/11 Regression] ICE: in
 expand_expr_real_2, at expr.c:10000 with -O2 -fno-tree-ccp -fno-tree-forwprop
Date: Mon, 01 Feb 2021 12:39:34 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98287

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 50108
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D50108&action=3Dedit
gcc11-pr98287.patch

I'd be afraid it could be hundreds of patterns potentially affected by this.
So I think it is much easier to handle that in the infrastructure.

This patch attempts to do that when PROP_gimple_lvec property is set for ca=
ses
for which expand_vector_operations_1 does something (except I've skipped the
VEC_PERM_EXPR and VEC_COND_EXPR/COND_EXPR checks for now).=