patch to fix PR88207

[Vladimir Makarov]

 Â  The following patch fixes

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88207

 Â  The patch was tested and bootstrapped on x86/x86-64.

 Â  Committed as rev. 266582.

   The patch creates one new regression on pr34256.c.  But I think gcc 
with the patch generates the right code.  I'll send a patch modifying 
the test for discussion and/or approval later today.



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