diff options
Diffstat (limited to 'gcc/config/mips/constraints.md')
| -rw-r--r-- | gcc/config/mips/constraints.md | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/config/mips/constraints.md b/gcc/config/mips/constraints.md index 71ec938d85b..31f01d35dbc 100644 --- a/gcc/config/mips/constraints.md +++ b/gcc/config/mips/constraints.md @@ -232,6 +232,27 @@ "@internal" (match_operand 0 "low_bitmask_operand")) +(define_memory_constraint "ZC" + "When compiling microMIPS code, this constraint matches a memory operand + whose address is formed from a base register and a 12-bit offset. These + operands can be used for microMIPS instructions such as @code{ll} and + @code{sc}. When not compiling for microMIPS code, @code{ZC} is + equivalent to @code{R}." + (and (match_code "mem") + (if_then_else + (match_test "TARGET_MICROMIPS") + (match_test "umips_12bit_offset_address_p (XEXP (op, 0), mode)") + (match_test "mips_address_insns (XEXP (op, 0), mode, false)")))) + +(define_address_constraint "ZD" + "When compiling microMIPS code, this constraint matches an address operand + that is formed from a base register and a 12-bit offset. These operands + can be used for microMIPS instructions such as @code{prefetch}. When + not compiling for microMIPS code, @code{ZD} is equivalent to @code{p}." + (if_then_else (match_test "TARGET_MICROMIPS") + (match_test "umips_12bit_offset_address_p (op, mode)") + (match_test "mips_address_insns (op, mode, false)"))) + (define_memory_constraint "ZR" "@internal An address valid for loading/storing register exclusive" |