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[Bug rtl-optimization/53942] [4.6/4.7/4.8 Regression] unable to find a register to spill in class 'CREG'
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 19 Jul 2012 20:48:30 +0000
- Subject: [Bug rtl-optimization/53942] [4.6/4.7/4.8 Regression] unable to find a register to spill in class 'CREG'
- Auto-submitted: auto-generated
- References: <bug-53942-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53942
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-07-19 20:48:30 UTC ---
Author: jakub
Date: Thu Jul 19 20:48:25 2012
New Revision: 189681
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189681
Log:
PR rtl-optimization/53942
* function.c (assign_parm_setup_reg): Avoid zero/sign extension
directly from likely spilled non-fixed hard registers, move them
to pseudo first.
* gcc.dg/pr53942.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/pr53942.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/function.c
trunk/gcc/testsuite/ChangeLog