File pr29558.patch of Package gcc41

Subject: Bug 29558

Author: rth
Date: Mon Feb 19 16:21:59 2007
New Revision: 122131

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=122131
Log:
        PR debug/29558
        * var-tracking.c (track_expr_p): Disallow AGGREGATE_TYPE_P
        in memory.

Added:
    trunk/gcc/testsuite/gcc.dg/debug/pr29558.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/var-tracking.c

Index: gcc/var-tracking.c
===================================================================
*** gcc/var-tracking.c	(revision 122131)
--- gcc/var-tracking.c	(working copy)
*************** track_expr_p (tree expr)
*** 1442,1448 ****
    if (MEM_P (decl_rtl))
      {
        /* Do not track structures and arrays.  */
!       if (GET_MODE (decl_rtl) == BLKmode)
  	return 0;
        if (MEM_SIZE (decl_rtl)
  	  && INTVAL (MEM_SIZE (decl_rtl)) > MAX_VAR_PARTS)
--- 1442,1449 ----
    if (MEM_P (decl_rtl))
      {
        /* Do not track structures and arrays.  */
!       if (GET_MODE (decl_rtl) == BLKmode
! 	  || AGGREGATE_TYPE_P (TREE_TYPE (realdecl)))
  	return 0;
        if (MEM_SIZE (decl_rtl)
  	  && INTVAL (MEM_SIZE (decl_rtl)) > MAX_VAR_PARTS)
--- /dev/null	2006-11-14 00:12:06.000000000 +0100
+++ gcc/testsuite/gcc.dg/debug/pr29558.c	2007-02-19 17:57:08.000000000 +0100
@@ -0,0 +1,30 @@
+/* { dg-do compile } */
+
+void stpi_unpack_16_1(int length, unsigned char *out, unsigned char bit)
+{
+  unsigned char tempin;
+  unsigned char temp[16];
+  for (bit = 128; length > 0; length--) {
+    if (tempin & 128)
+      temp[0] |= bit;
+    else
+      {
+        *out++ = temp[1];
+        *out++ = temp[2];
+        *out++ = temp[3];
+        *out++ = temp[4];
+        *out++ = temp[5];
+        *out++ = temp[6];
+        *out++ = temp[7];
+        *out++ = temp[9];
+        *out++ = temp[10];
+        *out++ = temp[11];
+        *out++ = temp[12];
+        *out++ = temp[13];
+        *out++ = temp[14];
+        *out++ = temp[15];
+        __builtin_memset (temp, 0, 16);
+     }
+  }
+}
+