[Bug target/48803] arm: Bad assembler produced by bit extract/shift

mikpe at it dot uu.se gcc-bugzilla@gcc.gnu.org
Thu Sep 22 19:31:00 GMT 2011


Mikael Pettersson <mikpe at it dot uu.se> changed:

           What    |Removed                     |Added
                 CC|                            |mikpe at it dot uu.se

--- Comment #3 from Mikael Pettersson <mikpe at it dot uu.se> 2011-09-22 19:29:38 UTC ---
This test case stopped failing, sort of, for 4.6 by r162943, the introduction
of tree-bit-ccp optimization.  However that revision merely masked the problem
by default, as compiling with 4.6.[01] and -fno-tree-bit-ccp makes it reappear.
 The bug was finally fixed for 4.7 by r176911, the fix for the similar PR49799.
 That fix was also applied for 4.6.2 in r176917.

Backporting r176917 to 4.5 and 4.4 fixes both PRs there too.

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