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Lines 182-187
live_edge_for_reg (basic_block bb, int regno, int
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| 182 |
return live_edge; |
182 |
return live_edge; |
| 183 |
} |
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} |
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bool |
| 186 |
debug_uses_reg (rtx pat, unsigned int regno) |
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{ |
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subrtx_iterator::array_type array; |
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FOR_EACH_SUBRTX (iter, array, pat, NONCONST) |
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{ |
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const_rtx x = *iter; |
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if (REG_P (x) && REGNO (x) == regno) |
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return true; |
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} |
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return false; |
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} |
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| 185 |
/* Try to move INSN from BB to a successor. Return true on success. |
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/* Try to move INSN from BB to a successor. Return true on success. |
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USES and DEFS are the set of registers that are used and defined |
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USES and DEFS are the set of registers that are used and defined |
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after INSN in BB. SPLIT_P indicates whether a live edge from BB |
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after INSN in BB. SPLIT_P indicates whether a live edge from BB |
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Lines 200-205
move_insn_for_shrink_wrap (basic_block bb, rtx_ins
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unsigned int end_sregno = FIRST_PSEUDO_REGISTER; |
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unsigned int end_sregno = FIRST_PSEUDO_REGISTER; |
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basic_block next_block; |
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basic_block next_block; |
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edge live_edge; |
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edge live_edge; |
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rtx_insn *dinsn; |
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/* Look for a simple register assignment. We don't use single_set here |
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/* Look for a simple register assignment. We don't use single_set here |
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because we can't deal with any CLOBBERs, USEs, or REG_UNUSED secondary |
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because we can't deal with any CLOBBERs, USEs, or REG_UNUSED secondary |
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Lines 427-432
move_insn_for_shrink_wrap (basic_block bb, rtx_ins
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| 427 |
} |
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} |
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emit_insn_after (PATTERN (insn), bb_note (bb)); |
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emit_insn_after (PATTERN (insn), bb_note (bb)); |
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for (dinsn = insn; |
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dinsn && dinsn != NEXT_INSN (BB_END (bb)); |
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dinsn = NEXT_INSN (dinsn)) |
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{ |
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if (DEBUG_INSN_P (dinsn) |
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&& (debug_uses_reg (INSN_VAR_LOCATION_LOC (dinsn), dregno))) |
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{ |
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INSN_VAR_LOCATION_LOC (dinsn) = gen_rtx_UNKNOWN_VAR_LOC (); |
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break; |
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} |
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} |
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delete_insn (insn); |
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delete_insn (insn); |
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return true; |
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return true; |
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} |
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} |