http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49335
Ramana Radhakrishnan <ramana at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Known to work| |4.5.3
Keywords| |wrong-code
Last reconfirmed| |2011.06.09 10:23:41
CC| |ramana at gcc dot gnu.org
Ever Confirmed|0 |1
Summary|ARM: Invalid assembler |[4.6 Regression] ARM:
|generated while compiling |Invalid assembler generated
|C++ code from 'codeblocks' |while compiling C++ code
| |from 'codeblocks'
Known to fail| |4.6.0, 4.7.0
--- Comment #2 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> 2011-06-09
10:23:41 UTC ---
The problem is that *arith_shiftsi allows *all* shiftable operators to have the
stack pointer as Rn .
In Thumb2 only the add and sub instructions are allowed to have the stack
pointer in this form and all other instructions are UNPREDICTABLE. This has
come as a result of merging the 2 patterns from ARM and Thumb2 into a single
pattern and considering the same for both.
Affects only 4.6 branch and FSF trunk.
cheers
Ramana
