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| author | Richard Kenner <kenner@gcc.gnu.org> | 1997-01-04 08:15:46 -0500 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1997-01-04 08:15:46 -0500 |
| commit | bc8c44a637419f06d348530310dd6e1f4ec803de (patch) | |
| tree | b52d0e7db8ba506adc597bfaede9f8754e31aa8c /gcc | |
| parent | 7bc88d49332000c62fd7793d4cbc1718462c078d (diff) | |
| download | gcc-bc8c44a637419f06d348530310dd6e1f4ec803de.zip gcc-bc8c44a637419f06d348530310dd6e1f4ec803de.tar.gz gcc-bc8c44a637419f06d348530310dd6e1f4ec803de.tar.bz2 | |
(addsi3...
(addsi3, addhi3): Use two addqw (or subqw) insns when adding (or
subtracting) small integer constants (8 < N <= 16) to both address and
data registers.
From-SVN: r13367
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/m68k/m68k.md | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/gcc/config/m68k/m68k.md b/gcc/config/m68k/m68k.md index 61e4a66..2f0201c 100644 --- a/gcc/config/m68k/m68k.md +++ b/gcc/config/m68k/m68k.md @@ -1,5 +1,5 @@ ;;- Machine description for GNU compiler, Motorola 68000 Version -;; Copyright (C) 1987, 88, 93, 94, 95, 1996 Free Software Foundation, Inc. +;; Copyright (C) 1987, 88, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. ;; This file is part of GNU CC. @@ -2167,9 +2167,9 @@ : \"subq%.l %2,%0\"); } /* On the CPU32 it is faster to use two addqw instructions to - add a small integer (8 < N <= 16) to an address register. + add a small integer (8 < N <= 16) to a register. Likewise for subqw. */ - if (TARGET_CPU32 && ADDRESS_REG_P (operands[0])) + if (TARGET_CPU32 && REG_P (operands[0])) { if (INTVAL (operands[2]) > 8 && INTVAL (operands[2]) <= 16) @@ -2242,9 +2242,9 @@ return \"subq%.w %2,%0\"; } /* On the CPU32 it is faster to use two addqw instructions to - add a small integer (8 < N <= 16) to an address register. + add a small integer (8 < N <= 16) to a register. Likewise for subqw. */ - if (TARGET_CPU32 && ADDRESS_REG_P (operands[0])) + if (TARGET_CPU32 && REG_P (operands[0])) { if (INTVAL (operands[2]) > 8 && INTVAL (operands[2]) <= 16) @@ -2308,9 +2308,9 @@ return \"subq%.w %1,%0\"; } /* On the CPU32 it is faster to use two addqw instructions to - add a small integer (8 < N <= 16) to an address register. + add a small integer (8 < N <= 16) to a register. Likewise for subqw. */ - if (TARGET_CPU32 && ADDRESS_REG_P (operands[0])) + if (TARGET_CPU32 && REG_P (operands[0])) { if (INTVAL (operands[1]) > 8 && INTVAL (operands[1]) <= 16) @@ -2368,9 +2368,9 @@ return \"subq%.w %1,%0\"; } /* On the CPU32 it is faster to use two addqw instructions to - add a small integer (8 < N <= 16) to an address register. + add a small integer (8 < N <= 16) to a register. Likewise for subqw. */ - if (TARGET_CPU32 && ADDRESS_REG_P (operands[0])) + if (TARGET_CPU32 && REG_P (operands[0])) { if (INTVAL (operands[1]) > 8 && INTVAL (operands[1]) <= 16) |