[Bug rtl-optimization/52113] [4.7 regression][lower-subreg.c] ICE: in extract_insn, at recog.c:2123

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52113

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-04 
12:47:58 UTC ---
Author: jakub
Date: Sat Feb  4 12:47:55 2012
New Revision: 183894

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183894
Log:
    PR rtl-optimization/52113
    * lower-subreg.c (decompose_multiword_subregs): Call recog_memoized
    even for decomposable shift/zext insns.

    * gcc.target/avr/pr52113.c: New test.

Added:
    trunk/gcc/testsuite/gcc.c-torture/compile/pr52113.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/lower-subreg.c
    trunk/gcc/testsuite/ChangeLog