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| author | Joern Rennecke <amylaar@gcc.gnu.org> | 1996-12-13 19:46:28 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 1996-12-13 19:46:28 +0000 |
| commit | aff48e325b97d4c110288999734958f7eaa4142b (patch) | |
| tree | f9a259dc01bfda90889d6743bfc9fd5eb8e8b4f9 /gcc/config/sh/sh.md | |
| parent | 5c8c0abd1ffe7eccbdfa464803e4360d37563c7e (diff) | |
| download | gcc-aff48e325b97d4c110288999734958f7eaa4142b.zip gcc-aff48e325b97d4c110288999734958f7eaa4142b.tar.gz gcc-aff48e325b97d4c110288999734958f7eaa4142b.tar.bz2 | |
(dect): Rewrite pattern so that it can be combined.
From-SVN: r13307
Diffstat (limited to 'gcc/config/sh/sh.md')
| -rw-r--r-- | gcc/config/sh/sh.md | 17 |
1 files changed, 3 insertions, 14 deletions
diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md index 07bc69a..6c75623 100644 --- a/gcc/config/sh/sh.md +++ b/gcc/config/sh/sh.md @@ -222,10 +222,6 @@ "" "movt %0") -;; ??? This combiner pattern does not work, because combine does not combine -;; instructions that set a hard register when SMALL_REGISTER_CLASSES is -;; defined. Perhaps use a pseudo-reg for the T bit? - (define_insn "" [(set (reg:SI 18) (eq:SI (and:SI (match_operand:SI 0 "arith_reg_operand" "z,r") @@ -2108,17 +2104,10 @@ ;; Misc insns ;; ------------------------------------------------------------------------ -;; ??? This combiner pattern does not work, because combine does not combine -;; instructions that set a hard register when SMALL_REGISTER_CLASSES is -;; defined. Perhaps use a pseudo-reg for the T bit? - (define_insn "dect" - [(parallel [(set (match_operand:SI 0 "arith_reg_operand" "=r") - (plus:SI (match_dup 0) - (const_int -1))) - (set (reg:SI 18) - (eq:SI (plus:SI (match_dup 0) (const_int -1)) - (const_int 0)))])] + [(set (reg:SI 18) + (eq:SI (match_operand:SI 0 "arith_reg_operand" "+r") (const_int 1))) + (set (match_dup 0) (plus:SI (match_dup 0) (const_int -1)))] "TARGET_SH2" "dt %0") |