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global.c (find_reg): Check for HARD_REGNO_CALL_PART_CLOBBERED every where we allocate a register.

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* global.c (find_reg): Check for HARD_REGNO_CALL_PART_CLOBBERED
	every where we allocate a register.

From-SVN: r48791
This commit is contained in:
Herman A.J. ten Brugge 2002-01-12 02:43:51 +01:00 • committed by Michael Hayes
parent 41fcea287c
commit cf11ac5596
2 changed files with 14 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2002-01-12 Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
* global.c (find_reg): Check for HARD_REGNO_CALL_PART_CLOBBERED
every where we allocate a register.
2002-01-12 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
* gcse.c (compute_pre_data, pre_gcse): Use sbitmap_free.

9
gcc/global.c
View file

@ -1086,6 +1086,9 @@ find_reg (num, losers, alt_regs_p, accept_call_clobbered, retrying)
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (TEST_HARD_REG_BIT (allocno[num].hard_reg_copy_preferences, i)
&& HARD_REGNO_MODE_OK (i, mode)
&& (allocno[num].calls_crossed == 0
|| accept_call_clobbered
|| ! HARD_REGNO_CALL_PART_CLOBBERED (i, mode))
&& (REGNO_REG_CLASS (i) == REGNO_REG_CLASS (best_reg)
|| reg_class_subset_p (REGNO_REG_CLASS (i),
REGNO_REG_CLASS (best_reg))
@ -1122,6 +1125,9 @@ find_reg (num, losers, alt_regs_p, accept_call_clobbered, retrying)
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
if (TEST_HARD_REG_BIT (allocno[num].hard_reg_preferences, i)
&& HARD_REGNO_MODE_OK (i, mode)
&& (allocno[num].calls_crossed == 0
|| accept_call_clobbered
|| ! HARD_REGNO_CALL_PART_CLOBBERED (i, mode))
&& (REGNO_REG_CLASS (i) == REGNO_REG_CLASS (best_reg)
|| reg_class_subset_p (REGNO_REG_CLASS (i),
REGNO_REG_CLASS (best_reg))
@ -1202,6 +1208,9 @@ find_reg (num, losers, alt_regs_p, accept_call_clobbered, retrying)
/* Don't use a reg no good for this pseudo. */
&& ! TEST_HARD_REG_BIT (used2, regno)
&& HARD_REGNO_MODE_OK (regno, mode)
&& (allocno[num].calls_crossed == 0
|| accept_call_clobbered
|| ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
#ifdef CLASS_CANNOT_CHANGE_MODE
&& ! (REG_CHANGES_MODE (allocno[num].reg)
&& (TEST_HARD_REG_BIT