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| author | Jim Wilson <wilson@gcc.gnu.org> | 1996-06-05 17:19:36 -0700 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1996-06-05 17:19:36 -0700 |
| commit | 564890c98537ee4637edba5c5c91287ec123cb99 (patch) | |
| tree | 75ab9af4a3268ddb3e7b6389e84f9a98b8358cab | |
| parent | 211a0f85987396355258c2132251678972837caa (diff) | |
| download | gcc-564890c98537ee4637edba5c5c91287ec123cb99.zip gcc-564890c98537ee4637edba5c5c91287ec123cb99.tar.gz gcc-564890c98537ee4637edba5c5c91287ec123cb99.tar.bz2 | |
(branch_true): Add comment about T-bit compares.
From-SVN: r12172
| -rw-r--r-- | gcc/config/sh/sh.md | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md index 2d112ad..a5ec8b7 100644 --- a/gcc/config/sh/sh.md +++ b/gcc/config/sh/sh.md @@ -1483,6 +1483,10 @@ ;; Define the real conditional branch instructions. ;; ------------------------------------------------------------------------ +;; ??? Branches should compare T-bit against zero not one, so that they will +;; be in canonical form. get_condition in loop.c for instance will fail +;; with these patterns. + (define_insn "branch_true" [(set (pc) (if_then_else (eq (reg:SI 18) (const_int 1)) (label_ref (match_operand 0 "" "")) |