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arm.c (arm_hard_regno_mode_ok): Permit values of four words or less (including TImode) in core registers.

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* config/arm/arm.c (arm_hard_regno_mode_ok): Permit values of four
	words or less (including TImode) in core registers.

From-SVN: r148135
This commit is contained in:
Julian Brown 2009-06-03 16:01:38 +00:00 committed by Julian Brown
parent 3111cce0d9
commit 2e94c12d07
2 changed files with 9 additions and 4 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2009-06-03 Julian Brown <julian@codesourcery.com>
* config/arm/arm.c (arm_hard_regno_mode_ok): Permit values of four
words or less (including TImode) in core registers.
2009-06-03 Richard Guenther <rguenther@suse.de>
PR middle-end/40328

8
gcc/config/arm/arm.c
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@ -14741,13 +14741,13 @@ arm_hard_regno_mode_ok (unsigned int regno, enum machine_mode mode)
return VALID_IWMMXT_REG_MODE (mode);
}
/* We allow any value to be stored in the general registers.
/* We allow almost any value to be stored in the general registers.
Restrict doubleword quantities to even register pairs so that we can
use ldrd. Do not allow Neon structure opaque modes in general registers;
they would use too many. */
use ldrd. Do not allow very large Neon structure opaque modes in
general registers; they would use too many. */
if (regno <= LAST_ARM_REGNUM)
return !(TARGET_LDRD && GET_MODE_SIZE (mode) > 4 && (regno & 1) != 0)
&& !VALID_NEON_STRUCT_MODE (mode);
&& ARM_NUM_REGS (mode) <= 4;
if (regno == FRAME_POINTER_REGNUM
|| regno == ARG_POINTER_REGNUM)