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* flow.c (count_basic_blocks): Don't add (use (const_int 0)) insns.

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From-SVN: r30837
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Richard Henderson 1999-12-08 22:25:11 -08:00 • committed by Richard Henderson
parent 021b394959
commit f1fcc26102
2 changed files with 4 additions and 12 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
Wed Dec 8 22:24:15 1999 Richard Henderson <rth@cygnus.com>
* flow.c (count_basic_blocks): Don't add (use (const_int 0)) insns.
1999-12-08 Bernd Schmidt <bernds@cygnus.co.uk>
* loop.c (insert_loop_mem): Don't hoist volatile mems out of loops.

12
gcc/flow.c
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@ -471,18 +471,6 @@ count_basic_blocks (f)
|| (prev_code == CALL_INSN && call_had_abnormal_edge))))
{
count++;
/* If the previous insn was a call that did not create an
abnormal edge, we want to add a nop so that the CALL_INSN
itself is not at basic_block_end. This allows us to
easily distinguish between normal calls and those which
create abnormal edges in the flow graph. */
if (count > 0 && prev_call != 0 && !call_had_abnormal_edge)
{
rtx nop = gen_rtx_USE (VOIDmode, const0_rtx);
emit_insn_after (nop, prev_call);
}
}
/* Record whether this call created an edge. */