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reload1.c (merge_assigned_reloads): Don't change reloads other than RELOAD_FOR_INPUT_ADDRESS /...

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* reload1.c (merge_assigned_reloads): Don't change reloads
	other than RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
	to RELOAD_OTHER when there are conflicting input reloads.

From-SVN: r54703
This commit is contained in:
J"orn Rennecke 2002-06-17 11:33:20 +00:00 • committed by Joern Rennecke
parent 0af5c89673
commit dec0798ef3
2 changed files with 14 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
Mon Jun 17 12:32:24 2002 J"orn Rennecke <joern.rennecke@superh.com>
* reload1.c (merge_assigned_reloads): Don't change reloads
other than RELOAD_FOR_INPUT_ADDRESS / RELOAD_FOR_INPADDR_ADDRESS
to RELOAD_OTHER when there are conflicting input reloads.
2002-06-17 Richard Earnshaw (rearnsha@arm.com)
* function.c (epilogue_done): Correctly build a sequence of insns for

8
gcc/reload1.c
View file

@ -6096,11 +6096,19 @@ merge_assigned_reloads (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. */
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
&& (! conflicting_input
|| rld[j].when_needed == RELOAD_FOR_INPUT_ADDRESS
|| rld[j].when_needed == RELOAD_FOR_INPADDR_ADDRESS)
&& reg_overlap_mentioned_for_reload_p (rld[j].in,
rld[i].in))
rld[j].when_needed