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(save_call_clobbered_regs): If AUTO_INC_DEC, mark register indicated

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by REG_INC notes as live so they will be saved.

From-SVN: r10010
This commit is contained in:
Richard Kenner 1995-06-19 16:30:25 -04:00
parent 0f8f654e50
commit 0887bd4b9a
1 changed files with 8 additions and 1 deletions
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9
gcc/caller-save.c
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@ -473,7 +473,14 @@ save_call_clobbered_regs (insn_mode)
n_regs_saved++; n_regs_saved++;
} }
else else
note_stores (PATTERN (insn), set_reg_live); {
note_stores (PATTERN (insn), set_reg_live);
#ifdef AUTO_INC_DEC
for (link = REG_NOTES (insn); link; link = XEXP (link, 1))
if (REG_NOTE_KIND (link) == REG_INC)
set_reg_live (XEXP (link, 0), NULL_RTX);
#endif
}
for (link = REG_NOTES (insn); link; link = XEXP (link, 1)) for (link = REG_NOTES (insn); link; link = XEXP (link, 1))
if (REG_NOTE_KIND (link) == REG_UNUSED) if (REG_NOTE_KIND (link) == REG_UNUSED)