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r229458 - in /trunk/gcc: ChangeLog config/i386/...
- From: rth at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Tue, 27 Oct 2015 19:59:42 -0000
- Subject: r229458 - in /trunk/gcc: ChangeLog config/i386/...
Author: rth
Date: Tue Oct 27 19:59:41 2015
New Revision: 229458
URL: https://gcc.gnu.org/viewcvs?rev=229458&root=gcc&view=rev
Log:
PR rtl-opt/67609
* config/i386/i386.c (ix86_cannot_change_mode_class): Disallow
narrowing subregs on SSE and MMX registers.
* doc/tm.texi.in (CANNOT_CHANGE_MODE_CLASS): Clarify when subregs that
appear to be sub-words of multi-register pseudos must be rejected.
* doc/tm.texi: Regenerate.
testsuite/
* gcc.target/i386/pr67609-2.c: New test.
Added:
trunk/gcc/testsuite/gcc.target/i386/pr67609-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/doc/tm.texi
trunk/gcc/doc/tm.texi.in
trunk/gcc/testsuite/ChangeLog