2001-07-28 Richard Henderson <rth@redhat.com>
+ * varasm.c (immed_real_const_1): Don't elide special cases for
+ nested functions.
+ (clear_const_double_mem): Clear const_tiny_rtx too.
+
+2001-07-28 Richard Henderson <rth@redhat.com>
+
* dwarf2out.c (dw_val_class_offset): New.
(struct dw_ranges_struct, dw_ranges_ref): New.
(ranges_table, ranges_table_allocated): New.
u.d = d;
- /* Detect special cases. But be careful we don't use a CONST_DOUBLE
- that's from a parent function since it may be in its constant pool. */
- if (REAL_VALUES_IDENTICAL (dconst0, d)
- && (cfun == 0 || decl_function_context (current_function_decl) == 0))
+ /* Detect special cases. */
+ if (REAL_VALUES_IDENTICAL (dconst0, d))
return CONST0_RTX (mode);
/* Check for NaN first, because some ports (specifically the i386) do not
emit correct ieee-fp code by default, and thus will generate a core
dump here if we pass a NaN to REAL_VALUES_EQUAL and if REAL_VALUES_EQUAL
does a floating point comparison. */
- else if ((! REAL_VALUE_ISNAN (d) && REAL_VALUES_EQUAL (dconst1, d))
- && (cfun == 0
- || decl_function_context (current_function_decl) == 0))
+ else if (! REAL_VALUE_ISNAN (d) && REAL_VALUES_EQUAL (dconst1, d))
return CONST1_RTX (mode);
if (sizeof u == sizeof (HOST_WIDE_INT))
clear_const_double_mem ()
{
register rtx r, next;
+ enum machine_mode mode;
+ int i;
for (r = const_double_chain; r; r = next)
{
CONST_DOUBLE_MEM (r) = cc0_rtx;
}
const_double_chain = 0;
+
+ for (i = 0; i <= 2; i++)
+ for (mode = GET_CLASS_NARROWEST_MODE (MODE_FLOAT); mode != VOIDmode;
+ mode = GET_MODE_WIDER_MODE (mode))
+ {
+ r = const_tiny_rtx[i][(int) mode];
+ CONST_DOUBLE_CHAIN (r) = 0;
+ CONST_DOUBLE_MEM (r) = cc0_rtx;
+ }
}
\f
/* Given an expression EXP with a constant value,