flow.c (life_analysis): When collecting reg info, clear regs_ever_live.

* flow.c (life_analysis): When collecting reg info, clear regs_ever_live. From-SVN: r32139

flow.c (life_analysis): When collecting reg info, clear regs_ever_live.
* flow.c (life_analysis): When collecting reg info, clear regs_ever_live. From-SVN: r32139
c8082519 · Richard Henderson · Richard Henderson · e5f8d4c0 · c8082519 · c8082519
Commit c8082519 authored Feb 24, 2000 by Richard Henderson Committed by Richard Henderson Feb 24, 2000
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gcc/flow.c
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+2000-02-24  Richard Henderson  <rth@cygnus.com>
+
+	* flow.c (life_analysis): When collecting reg info, clear
+	regs_ever_live.
+
 Thu Feb 24 22:06:52 2000  J"orn Rennecke <amylaar@cygnus.co.uk>

 	Fix bug exposed by reload.c no longer rounding the frame

--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -2524,6 +2524,9 @@ life_analysis (f, nregs, file, remove_dead_code)
  /* "Update" life info from zero.  It'd be nice to begin the
     relaxation with just the exit and noreturn blocks, but that set
     is not immediately handy.  */
+
+  if (flags & PROP_REG_INFO)
+    memset (regs_ever_live, 0, sizeof(regs_ever_live));
  update_life_info (all_blocks, UPDATE_LIFE_GLOBAL, flags);

  /* Clean up.  */