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PR rtl-opt/67609
authorrth <rth@138bc75d-0d04-0410-961f-82ee72b054a4>
Tue, 27 Oct 2015 19:59:41 +0000 (19:59 +0000)
committerrth <rth@138bc75d-0d04-0410-961f-82ee72b054a4>
Tue, 27 Oct 2015 19:59:41 +0000 (19:59 +0000)
commite94743fac27ba9a742870dbca56ddc27c1499e8f
treeeec2e90ceb0a5636cb3bfde359439074db6769a1tree | snapshot
parent7ee34ff60c19b6e032249b3ec82a6a4d2a40ed30commit | diff
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.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@229458 138bc75d-0d04-0410-961f-82ee72b054a4
gcc/ChangeLog diff | blob | history
gcc/config/i386/i386.c diff | blob | history
gcc/doc/tm.texi diff | blob | history
gcc/doc/tm.texi.in diff | blob | history
gcc/testsuite/ChangeLog diff | blob | history
gcc/testsuite/gcc.target/i386/pr67609-2.c [new file with mode: 0644] blob
Domain: System / Toolchain;