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PATCH: Fix PR6706
- From: Mark Mitchell <mark at codesourcery dot com>
- To: gcc-patches at gcc dot gnu dot org
- Date: Fri, 5 Jul 2002 09:33:10 -0700
- Subject: PATCH: Fix PR6706
- Reply-to: mark at codesourcery dot com
PR 6706 is a regression on the use of -gdwarf pertaining to
variable-sized arrays.
Fixed with the attached patch. Tested on i686-pc-linux-gnu, applied
on the mainline and on the branch.
--
Mark Mitchell mark@codesourcery.com
CodeSourcery, LLC http://www.codesourcery.com
2002-07-03 Mark Mitchell <mark@codesourcery.com>
PR c++/6706
* dwarfout.c (output_reg_number): Fix warning message.
(output_bound_representation): Check SAVE_EXPR_RTL is not NULL
before using it.
2002-07-03 Mark Mitchell <mark@codesourcery.com>
PR c++/6706
* g++.dg/debug/debug6.C: New test.
* g++.dg/debug/debug7.C: New test.
Index: dwarfout.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/dwarfout.c,v
retrieving revision 1.106
diff -c -p -r1.106 dwarfout.c
*** dwarfout.c 22 Jan 2002 21:58:41 -0000 1.106
--- dwarfout.c 5 Jul 2002 16:17:36 -0000
*************** output_reg_number (rtl)
*** 2086,2092 ****
if (regno >= DWARF_FRAME_REGISTERS)
{
! warning_with_decl (dwarf_last_decl, "internal regno botch: regno = %d\n",
regno);
regno = 0;
}
--- 2086,2093 ----
if (regno >= DWARF_FRAME_REGISTERS)
{
! warning_with_decl (dwarf_last_decl,
! "internal regno botch: `%s' has regno = %d\n",
regno);
regno = 0;
}
*************** output_bound_representation (bound, dim_
*** 2303,2309 ****
|| TREE_CODE (bound) == CONVERT_EXPR)
bound = TREE_OPERAND (bound, 0);
! if (TREE_CODE (bound) == SAVE_EXPR)
output_loc_descriptor
(eliminate_regs (SAVE_EXPR_RTL (bound), 0, NULL_RTX));
}
--- 2304,2311 ----
|| TREE_CODE (bound) == CONVERT_EXPR)
bound = TREE_OPERAND (bound, 0);
! if (TREE_CODE (bound) == SAVE_EXPR
! && SAVE_EXPR_RTL (bound))
output_loc_descriptor
(eliminate_regs (SAVE_EXPR_RTL (bound), 0, NULL_RTX));
}
Index: testsuite/g++.dg/debug/debug6.C
===================================================================
RCS file: testsuite/g++.dg/debug/debug6.C
diff -N testsuite/g++.dg/debug/debug6.C
*** /dev/null 1 Jan 1970 00:00:00 -0000
--- testsuite/g++.dg/debug/debug6.C 5 Jul 2002 16:17:39 -0000
***************
*** 0 ****
--- 1,7 ----
+ // { dg-do compile }
+
+ void foo()
+ {
+ int i=1, x[i];
+ }
+
Index: testsuite/g++.dg/debug/debug7.C
===================================================================
RCS file: testsuite/g++.dg/debug/debug7.C
diff -N testsuite/g++.dg/debug/debug7.C
*** /dev/null 1 Jan 1970 00:00:00 -0000
--- testsuite/g++.dg/debug/debug7.C 5 Jul 2002 16:17:39 -0000
***************
*** 0 ****
--- 1,18 ----
+ // { dg-do compile }
+
+ void f (int);
+
+ int
+ main() {
+
+ int a = 4;
+ int b = 5;
+ int (*x)[b] = new int[a][b];
+
+ x[2][1] = 7;
+
+ for (int i = 0; i < a; ++i)
+ for (int j = 0; j < b; ++j)
+ f (x[i][j]);
+ delete [] x;
+ }