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flow.c (mark_set_1): Don't update conditional life info if the register is not_dead.

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* flow.c (mark_set_1): Don't update conditional life info
        if the register is not_dead.

From-SVN: r33749
This commit is contained in:
Richard Henderson 2000-05-06 17:38:26 -07:00 committed by Richard Henderson
parent 179977c13a
commit f0acaf02b5
2 changed files with 6 additions and 1 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2000-05-06 Richard Henderson <rth@cygnus.com>
* flow.c (mark_set_1): Don't update conditional life info
if the register is not_dead.
2000-05-06 Zack Weinberg <zack@wolery.cumb.org>
* Makefile.in (STAGESTUFF): Add genrtl.c and genrtl.h.

2
gcc/flow.c
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@ -4252,7 +4252,7 @@ mark_set_1 (pbi, code, reg, cond, insn, flags)
#ifdef HAVE_conditional_execution
/* Consider conditional death in deciding that the register needs
a death note. */
if (some_was_live
if (some_was_live && ! not_dead
/* The stack pointer is never dead. Well, not strictly true,
but it's very difficult to tell from here. Hopefully
combine_stack_adjustments will fix up the most egregious