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reload1.c (merge_assigned_reloads): Do not change any RELOAD_FOR_OUTPUT_ADDRESS reloads.

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* reload1.c (merge_assigned_reloads): Do not change any
	RELOAD_FOR_OUTPUT_ADDRESS reloads.

From-SVN: r104827
This commit is contained in:
Daniel Jacobowitz 2005-09-30 18:09:56 +00:00 committed by Daniel Jacobowitz
parent f46876f99c
commit 3f27846b1c
2 changed files with 12 additions and 4 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2005-09-30 Daniel Jacobowitz <dan@codesourcery.com>
* reload1.c (merge_assigned_reloads): Do not change any
RELOAD_FOR_OUTPUT_ADDRESS reloads.
2005-09-30 Geoffrey Keating <geoffk@apple.com>
* config/t-slibgcc-darwin (libgcc_s_%.dylib): Remove old symlinks

11
gcc/reload1.c
View File

@ -6083,6 +6083,8 @@ merge_assigned_reloads (rtx insn)
if (j == n_reloads
&& max_input_address_opnum <= min_conflicting_input_opnum)
{
gcc_assert (rld[i].when_needed != RELOAD_FOR_OUTPUT);
for (j = 0; j < n_reloads; j++)
if (i != j && rld[j].reg_rtx != 0
&& rtx_equal_p (rld[i].reg_rtx, rld[j].reg_rtx)
@ -6101,16 +6103,17 @@ merge_assigned_reloads (rtx insn)
if they were for inputs, RELOAD_OTHER for outputs. Note that
this test is equivalent to looking for reloads for this operand
number. */
/* We must take special care when there are two or more reloads to
be merged and a RELOAD_FOR_OUTPUT_ADDRESS reload that loads the
same value or a part of it; we must not change its type if there
is a conflicting input. */
/* We must take special care with RELOAD_FOR_OUTPUT_ADDRESS; it may
share registers with a RELOAD_FOR_INPUT, so we can not change it
to RELOAD_FOR_OTHER_ADDRESS. We should never need to, since we
do not modify RELOAD_FOR_OUTPUT. */
if (rld[i].when_needed == RELOAD_OTHER)
for (j = 0; j < n_reloads; j++)
if (rld[j].in != 0
&& rld[j].when_needed != RELOAD_OTHER
&& rld[j].when_needed != RELOAD_FOR_OTHER_ADDRESS
&& rld[j].when_needed != RELOAD_FOR_OUTPUT_ADDRESS
&& (! conflicting_input
|| rld[j].when_needed == RELOAD_FOR_INPUT_ADDRESS
|| rld[j].when_needed == RELOAD_FOR_INPADDR_ADDRESS)