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c-typeck.c (build_compound_expr, [...]): Don't try to use non_lvalue to stop something being a null pointer constant.

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* c-typeck.c (build_compound_expr, build_c_cast): Don't try to use
	non_lvalue to stop something being a null pointer constant.

From-SVN: r89120
This commit is contained in:
Joseph Myers 2004-10-15 22:32:03 +01:00 • committed by Joseph Myers
parent d6b4201fab
commit dee3cda5ba
2 changed files with 5 additions and 10 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2004-10-15 Joseph S. Myers <jsm@polyomino.org.uk>
* c-typeck.c (build_compound_expr, build_c_cast): Don't try to use
non_lvalue to stop something being a null pointer constant.
2004-10-15 Aldy Hernandez <aldyh@redhat.com>
* config/rs6000/rs6000.h (FUNCTION_ARG_REGNO_P): FPRs are only

10
gcc/c-typeck.c
View file

@ -3054,10 +3054,6 @@ build_compound_expr (tree expr1, tree expr2)
/* Convert arrays and functions to pointers. */
expr2 = default_function_array_conversion (expr2);
/* Don't let (0, 0) be null pointer constant. */
if (integer_zerop (expr2))
expr2 = non_lvalue (expr2);
if (!TREE_SIDE_EFFECTS (expr1))
{
/* The left-hand operand of a comma expression is like an expression
@ -3300,12 +3296,6 @@ build_c_cast (tree type, tree expr)
}
}
/* Don't let (void *) (FOO *) 0 be a null pointer constant. */
if (TREE_CODE (value) == INTEGER_CST
&& TREE_CODE (expr) == INTEGER_CST
&& TREE_CODE (TREE_TYPE (expr)) != INTEGER_TYPE)
value = non_lvalue (value);
/* Don't let a cast be an lvalue. */
if (value == expr)
value = non_lvalue (value);