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| author | Kazu Hirata <kazu@hxi.com> | 2002-01-26 21:31:04 +0000 |
|---|---|---|
| committer | Kazu Hirata <kazu@gcc.gnu.org> | 2002-01-26 21:31:04 +0000 |
| commit | 1d788fb6847e47ae3e3a3c9a0a4aef4b2f8c6947 (patch) | |
| tree | 6bc97f0af9849dca36221ce51924993025a24029 /gcc | |
| parent | 87611f881e38f1ce0e0bc09201ca629bce629c78 (diff) | |
| download | gcc-1d788fb6847e47ae3e3a3c9a0a4aef4b2f8c6947.zip gcc-1d788fb6847e47ae3e3a3c9a0a4aef4b2f8c6947.tar.gz gcc-1d788fb6847e47ae3e3a3c9a0a4aef4b2f8c6947.tar.bz2 | |
h8300.md: Remove bit extraction patterns that cannot be triggered.
* config/h8300/h8300.md: Remove bit extraction patterns that
cannot be triggered.
Restrict each bit extraction pattern to a variant on which the
pattern is tested.
From-SVN: r49253
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/h8300/h8300.md | 60 |
2 files changed, 11 insertions, 56 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 147a32d..24dd82c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2002-01-26 Kazu Hirata <kazu@hxi.com> + + * config/h8300/h8300.md: Remove bit extraction patterns that + cannot be triggered. + Restrict each bit extraction pattern to a variant on which the + pattern is tested. + 2002-01-26 Joseph S. Myers <jsm28@cam.ac.uk> * doc/include/texinfo.tex: Update to version 2002-01-04.07. diff --git a/gcc/config/h8300/h8300.md b/gcc/config/h8300/h8300.md index 27cb07c..f94778b 100644 --- a/gcc/config/h8300/h8300.md +++ b/gcc/config/h8300/h8300.md @@ -1973,25 +1973,13 @@ ;; ;; Normal loads with a 16bit destination. ;; -;; Yes, both cases are needed. -;; + (define_insn "" [(set (match_operand:HI 0 "register_operand" "=&r") (zero_extract:HI (match_operand:HI 1 "register_operand" "r") (const_int 1) (match_operand:HI 2 "immediate_operand" "n")))] - "" - "sub.w %0,%0\;bld %Z2,%Y1\;bst #0,%X0" - [(set_attr "cc" "clobber") - (set_attr "length" "6")]) - -(define_insn "" - [(set (match_operand:HI 0 "register_operand" "=&r") - (subreg:HI (zero_extract:SI - (match_operand:HI 1 "register_operand" "r") - (const_int 1) - (match_operand:HI 2 "immediate_operand" "n")) 2))] - "" + "TARGET_H8300" "sub.w %0,%0\;bld %Z2,%Y1\;bst #0,%X0" [(set_attr "cc" "clobber") (set_attr "length" "6")]) @@ -1999,8 +1987,6 @@ ;; ;; Inverted loads with a 16bit destination. ;; -;; Yes, all four cases are needed. -;; (define_insn "" [(set (match_operand:HI 0 "register_operand" "=&r") @@ -2008,46 +1994,8 @@ (match_operand:HI 3 "p_operand" "P")) (const_int 1) (match_operand:HI 2 "const_int_operand" "n")))] - "(1 << INTVAL (operands[2])) == INTVAL (operands[3])" - "sub.w %0,%0\;bild %Z2,%Y1\;bst #0,%X0" - [(set_attr "cc" "clobber") - (set_attr "length" "8")]) - -(define_insn "" - [(set (match_operand:HI 0 "register_operand" "=&r") - (and:HI (not:HI - (lshiftrt:HI - (match_operand:HI 1 "bit_operand" "Ur") - (match_operand:HI 2 "const_int_operand" "n"))) - (const_int 1)))] - "" - "sub.w %0,%0\;bild %Z2,%Y1\;bst #0,%X0" - [(set_attr "cc" "clobber") - (set_attr "length" "8")]) - -(define_insn "" - [(set (match_operand:HI 0 "register_operand" "=&r") - (and:HI (not:HI - (subreg:HI - (lshiftrt:SI - (match_operand:SI 1 "register_operand" "Ur") - (match_operand:SI 2 "const_int_operand" "n")) 2)) - (const_int 1)))] - "INTVAL (operands[2]) < 16" - "sub.w %0,%0\;bild %Z2,%Y1\;bst #0,%X0" - [(set_attr "cc" "clobber") - (set_attr "length" "8")]) - -(define_insn "" - [(set (match_operand:HI 0 "register_operand" "=&r") - (and:HI (not:HI - (subreg:HI - (lshiftrt:SI - (match_operand:SI 1 "bit_operand" "Ur") - (match_operand:SI 2 "const_int_operand" "n")) 0)) - (const_int 1)))] - "(TARGET_H8300H || TARGET_H8300S) - && INTVAL (operands[2]) < 16" + "TARGET_H8300 + && (1 << INTVAL (operands[2])) == INTVAL (operands[3])" "sub.w %0,%0\;bild %Z2,%Y1\;bst #0,%X0" [(set_attr "cc" "clobber") (set_attr "length" "8")]) |