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ia64.c (ia64_expand_prologue): Mark extra output registers as fixed. 

* config/ia64/ia64.c (ia64_expand_prologue): Mark extra
        output registers as fixed.
        (ia64_function_epilogue): Undo output fixation.

From-SVN: r37029
This commit is contained in:
Richard Henderson 2000-10-23 17:26:12 -07:00 committed by Richard Henderson
parent 964686defd
commit 8a959ea52e
2 changed files with 18 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2000-10-23 Richard Henderson <rth@cygnus.com>
* config/ia64/ia64.c (ia64_expand_prologue): Mark extra
output registers as fixed.
(ia64_function_epilogue): Undo output fixation.
2000-10-23 Richard Henderson <rth@cygnus.com>
* config/alpha/alpha.md: Add names for all unnamed insns; use

14
gcc/config/ia64/ia64.c
View File

@ -1852,6 +1852,12 @@ ia64_expand_prologue ()
reg_names[OUT_REG (i)] = ia64_reg_numbers[inputs + locals + i];
}
/* ??? Temporarily mark the remaining output registers fixed, so
that the register renaming pass does not try to used them after
we've fixed the size of the register frame. */
for (i = current_frame_info.n_output_regs; i < 8; ++i)
fixed_regs[OUT_REG (i)] = 1;
/* Set the frame pointer register name. The regnum is logically loc79,
but of course we'll not have allocated that many locals. Rather than
worrying about renumbering the existing rtxs, we adjust the name. */
@ -2475,6 +2481,8 @@ ia64_function_epilogue (file, size)
FILE *file ATTRIBUTE_UNUSED;
int size ATTRIBUTE_UNUSED;
{
int i;
/* Reset from the function's potential modifications. */
XINT (return_address_pointer_rtx, 0) = RETURN_ADDRESS_POINTER_REGNUM;
@ -2487,8 +2495,6 @@ ia64_function_epilogue (file, size)
}
if (! TARGET_REG_NAMES)
{
int i;
for (i = 0; i < current_frame_info.n_input_regs; i++)
reg_names[IN_REG (i)] = ia64_input_reg_names[i];
for (i = 0; i < current_frame_info.n_local_regs; i++)
@ -2496,6 +2502,10 @@ ia64_function_epilogue (file, size)
for (i = 0; i < current_frame_info.n_output_regs; i++)
reg_names[OUT_REG (i)] = ia64_output_reg_names[i];
}
for (i = 0; i < 8; ++i)
fixed_regs[OUT_REG (i)] = 0;
current_frame_info.initialized = 0;
}