Hi, The following patch fixes an ICE that is generated when the compiler tries to perform bit manipulation for logical operations when the source and destination address does not match. The testcase is also included in the patch(gcc.dg). The additional condition in the insn takes care of the ICE which occurs at '-O1'. The other insn's are reordered to give preference to bit instructions using existing constraints. Ok to apply?
Thanks & Regards,
Kaushik Phatak
www.kpitgnutools.com
2011-06-09 Kaushik Phatak <kaushik.pha...@kpitcummins.com>
* config/h8300/h8300.md (bsetqi_msx, bclrqi_msx, bnotqi_msx): Added
condition to disallow non-identical memory locations.
(*andqi3_2, andqi3_1, iorqi3_1, xorqi3_1): Reorder insn to give
preference to bit manipulation instructions.
* gcc.dg/h8300-bit-insn-ice2.2: New testcase.
h8_bit.diff
Description: h8_bit.diff
