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| author | Kazu Hirata <kazu@cs.umass.edu> | 2002-12-01 18:04:06 +0000 |
|---|---|---|
| committer | Kazu Hirata <kazu@gcc.gnu.org> | 2002-12-01 18:04:06 +0000 |
| commit | 96cc06af6f5558fb7f88b1d62b72b31fd5005f05 (patch) | |
| tree | 4d61c9aa1a0984bf654d0f2a7653fff226aa2ad9 | |
| parent | c9f8536c5dc8c115f26aaeb87585dbce0eeb4a10 (diff) | |
| download | gcc-96cc06af6f5558fb7f88b1d62b72b31fd5005f05.zip gcc-96cc06af6f5558fb7f88b1d62b72b31fd5005f05.tar.gz gcc-96cc06af6f5558fb7f88b1d62b72b31fd5005f05.tar.bz2 | |
* config/h8300/h8300.md: Add comments for define_peephole2.
From-SVN: r59690
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/h8300/h8300.md | 12 |
2 files changed, 16 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5717dea..47f8735 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2002-12-01 Kazu Hirata <kazu@cs.umass.edu> + + * config/h8300/h8300.md: Add comments for define_peephole2. + 2002-12-01 Mark Mitchell <mark@codesourcery.com> * builtin-types.def (BT_SIZE): Use size_type_node. diff --git a/gcc/config/h8300/h8300.md b/gcc/config/h8300/h8300.md index 08bdb8e..c846ac67 100644 --- a/gcc/config/h8300/h8300.md +++ b/gcc/config/h8300/h8300.md @@ -2353,6 +2353,8 @@ ;; PEEPHOLE PATTERNS ;; ----------------------------------------------------------------- +;; Convert (A >> B) & C to (A & 255) >> B if C == 255 >> B. + (define_peephole2 [(parallel [(set (match_operand:HI 0 "register_operand" "") @@ -2373,6 +2375,8 @@ (clobber (match_dup 2))])] "") +;; Convert (A << B) & C to (A & 255) << B if C == 255 << B. + (define_peephole2 [(parallel [(set (match_operand:HI 0 "register_operand" "") @@ -2393,6 +2397,8 @@ (clobber (match_dup 2))])] "") +;; Convert (A >> B) & C to (A & 255) >> B if C == 255 >> B. + (define_peephole2 [(parallel [(set (match_operand:SI 0 "register_operand" "") @@ -2413,6 +2419,8 @@ (clobber (match_dup 2))])] "") +;; Convert (A << B) & C to (A & 255) << B if C == 255 << B. + (define_peephole2 [(parallel [(set (match_operand:SI 0 "register_operand" "") @@ -2433,6 +2441,8 @@ (clobber (match_dup 2))])] "") +;; Convert (A >> B) & C to (A & 65535) >> B if C == 65535 >> B. + (define_peephole2 [(parallel [(set (match_operand:SI 0 "register_operand" "") @@ -2453,6 +2463,8 @@ (clobber (match_dup 2))])] "") +;; Convert (A << B) & C to (A & 65535) << B if C == 65535 << B. + (define_peephole2 [(parallel [(set (match_operand:SI 0 "register_operand" "") |