re PR rtl-optimization/8848 (bad code when optimizing (lifetime analysis pass?))
PR opt/8848 * ifcvt.c (noce_process_if_block): Correct arguments to modified_between_p for no-else-block case. * gcc.c-torture/execute/20030120-2.c: New. From-SVN: r61532
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2003-01-20 Richard Henderson <rth@redhat.com>
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PR opt/8848
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* ifcvt.c (noce_process_if_block): Correct arguments to
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modified_between_p for no-else-block case.
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2003-01-20 Kazu Hirata <kazu@cs.umass.edu>
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* config/h8300/h8300.c (const_costs): Remove a warning.
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@ -1809,7 +1809,8 @@ noce_process_if_block (ce_info)
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|| reg_overlap_mentioned_p (x, cond)
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|| reg_overlap_mentioned_p (x, a)
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|| reg_overlap_mentioned_p (x, SET_SRC (set_b))
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|| modified_between_p (x, if_info.cond_earliest, NEXT_INSN (jump)))
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|| modified_between_p (SET_SRC (set_b),
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PREV_INSN (if_info.cond_earliest), jump))
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insn_b = set_b = NULL_RTX;
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}
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b = (set_b ? SET_SRC (set_b) : x);
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@ -0,0 +1,19 @@
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/* PR 8848 */
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extern void abort ();
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int foo(int status)
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{
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int s = 0;
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if (status == 1) s=1;
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if (status == 3) s=3;
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if (status == 4) s=4;
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return s;
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}
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int main()
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{
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if (foo (3) != 3)
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abort ();
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return 0;
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}
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