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(move_movables): Aviod lossage when CALL_INSN_FUNCTION_USAGE 

is NULL.

From-SVN: r7777
This commit is contained in:
Jim Wilson 1994-07-18 18:58:06 -07:00
parent 98068ba2d7
commit 8c4f5c09f0
1 changed files with 6 additions and 4 deletions
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10
gcc/loop.c
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@ -1791,8 +1791,9 @@ move_movables (movables, threshold, insn_count, loop_start, end, nregs)
/* Because the USAGE information potentially
contains objects other than hard registers
we need to copy it. */
CALL_INSN_FUNCTION_USAGE (i1) =
copy_rtx (CALL_INSN_FUNCTION_USAGE (temp));
if (CALL_INSN_FUNCTION_USAGE (temp))
CALL_INSN_FUNCTION_USAGE (i1) =
copy_rtx (CALL_INSN_FUNCTION_USAGE (temp));
}
else
i1 = emit_insn_before (body, loop_start);
@ -1834,8 +1835,9 @@ move_movables (movables, threshold, insn_count, loop_start, end, nregs)
/* Because the USAGE information potentially
contains objects other than hard registers
we need to copy it. */
CALL_INSN_FUNCTION_USAGE (i1) =
copy_rtx (CALL_INSN_FUNCTION_USAGE (p));
if (CALL_INSN_FUNCTION_USAGE (p))
CALL_INSN_FUNCTION_USAGE (i1) =
copy_rtx (CALL_INSN_FUNCTION_USAGE (p));
}
else
i1 = emit_insn_before (PATTERN (p), loop_start);