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Hello! There is no way to generate shift pattern with %rX and %rsp as operands 0 and 1, so remove unneeded splitter. %rsp is prevented by "index_register_operand" operand predicate as well as "l" operand constraint in relevant insn patterns. The patch also removes long overdue comment. We do have "incb %ah" patterns (and more), see "*addqi_ext_..." family of patterns. 2010-08-20 Uros Bizjak <ubizjak@gmail.com> * config/i386/i386.md (ashift RSP splitter): Remove splitter. (pro_epilogue_adjust_stack_di_2): Use "l" constraint for alternative 1 of operand 2. Patch was bootstrapped on x86_64-pc-linux-gnu {,-m32}. Committed to mainline SVN. Uros,
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