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* flow.c (mark_set_1): Respect not_dead when updating reg_live.

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From-SVN: r33736
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Richard Henderson 2000-05-06 14:36:35 -07:00 committed by Richard Henderson
parent 6482ee510f
commit 507741dd59
2 changed files with 3 additions and 0 deletions
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gcc/ChangeLog
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@ -3,6 +3,8 @@
* flow.c (split_edge): Don't allocate global_live_at_start for * flow.c (split_edge): Don't allocate global_live_at_start for
the new block unless the old blocks had them as well. the new block unless the old blocks had them as well.
* flow.c (mark_set_1): Respect not_dead when updating reg_live.
2000-05-06 Zack Weinberg <zack@wolery.cumb.org> 2000-05-06 Zack Weinberg <zack@wolery.cumb.org>
* cpphash.h: Remove conditional #define of __extension__. * cpphash.h: Remove conditional #define of __extension__.

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gcc/flow.c
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@ -4373,6 +4373,7 @@ mark_set_1 (pbi, code, reg, cond, insn, flags)
/* Mark the register as being dead. */ /* Mark the register as being dead. */
if (some_was_live if (some_was_live
&& ! not_dead
/* The stack pointer is never dead. Well, not strictly true, /* The stack pointer is never dead. Well, not strictly true,
but it's very difficult to tell from here. Hopefully but it's very difficult to tell from here. Hopefully
combine_stack_adjustments will fix up the most egregious combine_stack_adjustments will fix up the most egregious