diff options
Diffstat (limited to 'gcc-4.8/gcc/config/sh/predicates.md')
| -rw-r--r-- | gcc-4.8/gcc/config/sh/predicates.md | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc-4.8/gcc/config/sh/predicates.md b/gcc-4.8/gcc/config/sh/predicates.md index dcbd75bb8..b1905fa0d 100644 --- a/gcc-4.8/gcc/config/sh/predicates.md +++ b/gcc-4.8/gcc/config/sh/predicates.md @@ -389,6 +389,12 @@ XEXP (XEXP (op, 0), 1), TARGET_SH2A, true)"))) +;; Returns true if OP is a displacement address that can fit into a +;; 16 bit (non-SH2A) memory load / store insn. +(define_predicate "short_displacement_mem_operand" + (match_test "sh_disp_addr_displacement (op) + <= sh_max_mov_insn_displacement (GET_MODE (op), false)")) + ;; Returns 1 if the operand can be used in an SH2A movu.{b|w} insn. (define_predicate "zero_extend_movu_operand" (and (match_operand 0 "displacement_mem_operand") @@ -413,6 +419,11 @@ if (t_reg_operand (op, mode)) return 0; + /* Disallow PC relative QImode loads, since these is no insn to do that + and an imm8 load should be used instead. */ + if (IS_PC_RELATIVE_LOAD_ADDR_P (op) && GET_MODE (op) == QImode) + return false; + if (MEM_P (op)) { rtx inside = XEXP (op, 0); |