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(optimize_reg_copy_1): If P is a CALL_INSN, count it as being crossed

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by SRC since SRC used to die there.

From-SVN: r2689
This commit is contained in:
Richard Kenner 1992-11-04 07:23:39 -05:00
parent 5145eda8f0
commit 6c84e1541c
1 changed files with 6 additions and 0 deletions
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6
gcc/local-alloc.c
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@ -697,6 +697,12 @@ optimize_reg_copy_1 (insn, dest, src)
int n_calls = 0; int n_calls = 0;
int d_n_calls = 0; int d_n_calls = 0;
/* If P is a CALL_INSN, SRC crosses one more call, since it
used to die there. */
if (GET_CODE (p) == CALL_INSN)
n_calls++;
/* We can do the optimization. Scan forward from INSN again, /* We can do the optimization. Scan forward from INSN again,
replacing regs as we go. Set FAILED if a replacement can't replacing regs as we go. Set FAILED if a replacement can't
be done. In that case, we can't move the death note for SRC. be done. In that case, we can't move the death note for SRC.