77 lines
2.0 KiB
Diff
77 lines
2.0 KiB
Diff
|
2006-09-16 Andrew Pinski <pinskia@physics.uc.edu>
|
||
|
|
|
||
|
|
PR tree-opt/29059
|
||
|
|
* tree-ssa-propagate.c (set_rhs): Reject MODIFY_EXPR right
|
||
|
|
away for the expr argument.
|
||
|
|
|
||
|
|
* gcc.c-torture/compile/strcpy-1.c: New test.
|
||
|
|
* gcc.c-torture/compile/strcpy-2.c: New test.
|
||
|
|
* gcc.c-torture/compile/memcpy-1.c: New test.
|
||
|
|
* gcc.c-torture/compile/memcpy-2.c: New test.
|
||
|
|
|
||
|
|
--- gcc/tree-ssa-propagate.c (revision 116996)
|
||
|
|
+++ gcc/tree-ssa-propagate.c (revision 116997)
|
||
|
|
@@ -588,7 +588,8 @@ set_rhs (tree *stmt_p, tree expr)
|
||
|
|
&& !is_gimple_val (TREE_OPERAND (TREE_OPERAND (expr, 0), 1)))
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
- else if (code == COMPOUND_EXPR)
|
||
|
|
+ else if (code == COMPOUND_EXPR
|
||
|
|
+ || code == MODIFY_EXPR)
|
||
|
|
return false;
|
||
|
|
|
||
|
|
switch (TREE_CODE (stmt))
|
||
|
|
--- gcc/testsuite/gcc.c-torture/compile/strcpy-1.c (revision 0)
|
||
|
|
+++ gcc/testsuite/gcc.c-torture/compile/strcpy-1.c (revision 116997)
|
||
|
|
@@ -0,0 +1,15 @@
|
||
|
|
+
|
||
|
|
+
|
||
|
|
+typedef struct
|
||
|
|
+{
|
||
|
|
+ char str[20];
|
||
|
|
+}STACK;
|
||
|
|
+STACK stack[15];
|
||
|
|
+int level;
|
||
|
|
+rezero ()
|
||
|
|
+{
|
||
|
|
+ level = 0;
|
||
|
|
+ __builtin_strcpy (stack[level].str, "");
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+
|
||
|
|
--- gcc/testsuite/gcc.c-torture/compile/strcpy-2.c (revision 0)
|
||
|
|
+++ gcc/testsuite/gcc.c-torture/compile/strcpy-2.c (revision 116997)
|
||
|
|
@@ -0,0 +1,7 @@
|
||
|
|
+char wrkstr_un[270];
|
||
|
|
+extern void
|
||
|
|
+LoadUserAlph (char *s)
|
||
|
|
+{
|
||
|
|
+ s = &wrkstr_un[0];
|
||
|
|
+ __builtin_strcpy (s, "");
|
||
|
|
+};
|
||
|
|
--- gcc/testsuite/gcc.c-torture/compile/memcpy-1.c (revision 0)
|
||
|
|
+++ gcc/testsuite/gcc.c-torture/compile/memcpy-1.c (revision 116997)
|
||
|
|
@@ -0,0 +1,9 @@
|
||
|
|
+static const char OggFLAC__MAPPING_VERSION_MAJOR = 1;
|
||
|
|
+void f(void)
|
||
|
|
+{
|
||
|
|
+ char synthetic_first_packet_body[10];
|
||
|
|
+ char *b = &synthetic_first_packet_body[4];
|
||
|
|
+ __builtin_memcpy (b, &OggFLAC__MAPPING_VERSION_MAJOR, (1u));
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+
|
||
|
|
--- gcc/testsuite/gcc.c-torture/compile/memcpy-2.c (revision 0)
|
||
|
|
+++ gcc/testsuite/gcc.c-torture/compile/memcpy-2.c (revision 116997)
|
||
|
|
@@ -0,0 +1,10 @@
|
||
|
|
+static const char OggFLAC__MAPPING_VERSION_MAJOR = 1;
|
||
|
|
+void f(void)
|
||
|
|
+{
|
||
|
|
+ char synthetic_first_packet_body[10];
|
||
|
|
+ char *b = synthetic_first_packet_body;
|
||
|
|
+ b+=4u;
|
||
|
|
+ __builtin_memcpy (b, &OggFLAC__MAPPING_VERSION_MAJOR, (1u));
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
+
|