* reg-stack.c (subst_stack_regs): Properly check for deleted insn.

From-SVN: r49024

* reg-stack.c (subst_stack_regs): Properly check for deleted insn.
From-SVN: r49024
cbafacd1 · Richard Kenner · Richard Kenner · 5904dc87 · cbafacd1 · cbafacd1
Commit cbafacd1 authored 23 years ago by Richard Kenner Committed by Richard Kenner 23 years ago
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gcc/ChangeLog
+2 -0

gcc/reg-stack.c
+1 -1

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -7,6 +7,8 @@

 Sun Jan 20 18:40:14 2002  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

+	* reg-stack.c (subst_stack_regs): Properly check for deleted insn.
+
 	* dwarf2out.c (loc_descriptor_from_tree): Add TRUTH_*_EXPR cases.
 	(gen_struct_or_union_type_die): Don't SIGSEGV if no TYPE_STUB_DECL
 	in incomplete case.

--- a/gcc/reg-stack.c
+++ b/gcc/reg-stack.c
@@ -2215,7 +2215,7 @@ subst_stack_regs (insn, regstack)
  /* subst_stack_regs_pat may have deleted a no-op insn.  If so, any
     REG_UNUSED will already have been dealt with, so just return.  */

-  if (GET_CODE (insn) == NOTE)
+  if (GET_CODE (insn) == NOTE || INSN_DELETED_P (insn))
    return;

  /* If there is a REG_UNUSED note on a stack register on this insn,