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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/99648] [11 regression] gcc.dg/torture/pr71522.c fails
 starting with r11-165 for 32 bits
Date: Fri, 19 Mar 2021 07:39:19 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99648

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
   Last reconfirmed|                            |2021-03-19
   Target Milestone|---                         |11.0
             Status|UNCONFIRMED                 |WAITING
     Ever confirmed|0                           |1
          Component|other                       |target

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Yes, there's cfgexpand.c avoid_type_punning_on_regs which looks for integral
accesses of FP registers but only disables

+      && maybe_lt (GET_MODE_PRECISION (DECL_MODE (base)),
+                  GET_MODE_BITSIZE (GET_MODE_INNER (DECL_MODE (base))))

so the question is how the situation is with the case where it execute FAILs
(I can't check/verify that easily).  Can you please show failing assembler =
and
RTL?=