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reload1.c (choose_reload_regs): HARD_FRAME_POINTER_REGNUM is only used as frame pointer when...

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* reload1.c (choose_reload_regs): HARD_FRAME_POINTER_REGNUM
	is only used as frame pointer when frame_pointer_needed is true.

From-SVN: r52140
This commit is contained in:
Ulrich Weigand 2002-04-10 17:56:02 +00:00 committed by Ulrich Weigand
parent 6127eac4bd
commit 2f460a0a57
2 changed files with 9 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2002-04-10 Ulrich Weigand <uweigand@de.ibm.com>
* reload1.c (choose_reload_regs): HARD_FRAME_POINTER_REGNUM
is only used as frame pointer when frame_pointer_needed is true.
2002-04-10 Richard Earnshaw <rearnsha@arm.com>
PR target/817

5
gcc/reload1.c
View File

@ -5565,6 +5565,7 @@ choose_reload_regs (chain)
&& ! TEST_HARD_REG_BIT (reg_reloaded_dead, i))
/* Don't clobber the frame pointer. */
|| (i == HARD_FRAME_POINTER_REGNUM
&& frame_pointer_needed
&& rld[r].out)
/* Don't really use the inherited spill reg
if we need it wider than we've got it. */
@ -5735,7 +5736,9 @@ choose_reload_regs (chain)
/* If we found an equivalent reg, say no code need be generated
to load it, and use it as our reload reg. */
if (equiv != 0 && regno != HARD_FRAME_POINTER_REGNUM)
if (equiv != 0
&& (regno != HARD_FRAME_POINTER_REGNUM
|| !frame_pointer_needed))
{
int nr = HARD_REGNO_NREGS (regno, rld[r].mode);
int k;