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mips.c (mips_move_2words): Split doubles if ISA >= 3, !TARGET_64BIT, and destination is not an FP register. 

* config/mips/mips.c (mips_move_2words): Split doubles if ISA >= 3,
	!TARGET_64BIT, and destination is not an FP register.

Co-Authored-By: Jonathan Larmour <jlarmour@cygnus.co.uk>

From-SVN: r29824
This commit is contained in:
Diego Novillo 1999-10-05 12:18:56 +00:00 committed by Gavin Romig-Koch
parent a99d6b8c08
commit b81fdb5a14
2 changed files with 17 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
Mon Oct 4 16:48:16 1999 Diego Novillo <dnovillo@cygnus.com>
Jonathan Larmour <jlarmour@cygnus.co.uk>
* config/mips/mips.c (mips_move_2words): Split doubles if
ISA >= 3, !TARGET_64BIT, and destination is not an FP register.
Mon Oct 4 21:47:31 1999 Richard Henderson <rth@cygnus.com>
* genrecog.c (struct decision_test): New.

12
gcc/config/mips/mips.c
View File

@ -2214,7 +2214,17 @@ mips_move_2words (operands, insn)
}
else
#endif
ret = "li.d\t%0,%1";
/* GNU as emits 64-bit code for li.d if the ISA is 3
or higher. For !TARGET_64BIT && gp registers we
need to avoid this by using two li instructions
instead. */
if (mips_isa >= 3 && !TARGET_64BIT && !FP_REG_P (regno0))
{
split_double (op1, operands + 2, operands + 3);
ret = "li\t%0,%2\n\tli\t%D0,%3";
}
else
ret = "li.d\t%0,%1";
}
else if (TARGET_64BIT)