+2002-11-25 Richard Henderson <rth@redhat.com>
+
+ * alias.c (find_base_value): Use new_reg_base_value if it's live.
+ (copying_arguments): Make boolean.
+
2002-11-25 Jason Thorpe <thorpej@wasabisystems.com>
* gcc.c (static_spec_functions): Add if-exists-else spec
/* True when scanning insns from the start of the rtl to the
NOTE_INSN_FUNCTION_BEG note. */
-static int copying_arguments;
+static bool copying_arguments;
/* The splay-tree used to store the various alias set entries. */
static splay_tree alias_sets;
The test above is not sufficient because the scheduler may move
a copy out of an arg reg past the NOTE_INSN_FUNCTION_BEGIN. */
if ((regno >= FIRST_PSEUDO_REGISTER || fixed_regs[regno])
- && regno < reg_base_value_size
- && reg_base_value[regno])
- return reg_base_value[regno];
+ && regno < reg_base_value_size)
+ {
+ /* If we're inside init_alias_analysis, use new_reg_base_value
+ to reduce the number of relaxation iterations. */
+ if (new_reg_base_value && new_reg_base_value[regno])
+ return new_reg_base_value[regno];
+
+ if (reg_base_value[regno])
+ return reg_base_value[regno];
+ }
return src;
/* We're at the start of the function each iteration through the
loop, so we're copying arguments. */
- copying_arguments = 1;
+ copying_arguments = true;
/* Wipe the potential alias information clean for this pass. */
memset ((char *) new_reg_base_value, 0, reg_base_value_size * sizeof (rtx));
}
else if (GET_CODE (insn) == NOTE
&& NOTE_LINE_NUMBER (insn) == NOTE_INSN_FUNCTION_BEG)
- copying_arguments = 0;
+ copying_arguments = false;
}
/* Now propagate values from new_reg_base_value to reg_base_value. */