diff options
Diffstat (limited to 'gcc/config/rs6000/predicates.md')
| -rw-r--r-- | gcc/config/rs6000/predicates.md | 47 |
1 files changed, 45 insertions, 2 deletions
diff --git a/gcc/config/rs6000/predicates.md b/gcc/config/rs6000/predicates.md index a279874d20f..41694a51f1c 100644 --- a/gcc/config/rs6000/predicates.md +++ b/gcc/config/rs6000/predicates.md @@ -572,6 +572,38 @@ } }) +;; Return 1 if the operand is a CONST_VECTOR or VEC_DUPLICATE of a constant +;; that can loaded with a XXSPLTIB instruction and then a VUPKHSB, VECSB2W or +;; VECSB2D instruction. + +(define_predicate "xxspltib_constant_split" + (match_code "const_vector,vec_duplicate,const_int") +{ + int value = 256; + int num_insns = -1; + + if (!xxspltib_constant_p (op, mode, &num_insns, &value)) + return false; + + return num_insns > 1; +}) + + +;; Return 1 if the operand is a CONST_VECTOR that can loaded directly with a +;; XXSPLTIB instruction. + +(define_predicate "xxspltib_constant_nosplit" + (match_code "const_vector,vec_duplicate,const_int") +{ + int value = 256; + int num_insns = -1; + + if (!xxspltib_constant_p (op, mode, &num_insns, &value)) + return false; + + return num_insns == 1; +}) + ;; Return 1 if the operand is a CONST_VECTOR and can be loaded into a ;; vector register without using memory. (define_predicate "easy_vector_constant" @@ -590,7 +622,14 @@ if (VECTOR_MEM_ALTIVEC_OR_VSX_P (mode)) { - if (zero_constant (op, mode)) + int value = 256; + int num_insns = -1; + + if (zero_constant (op, mode) || all_ones_constant (op, mode)) + return true; + + if (TARGET_P9_VECTOR + && xxspltib_constant_p (op, mode, &num_insns, &value)) return true; return easy_altivec_constant (op, mode); @@ -709,7 +748,7 @@ if (GET_MODE_SIZE (mode) != 16 || !MEM_P (op) || MEM_ALIGN (op) < 128) return false; - return quad_address_p (XEXP (op, 0), mode, true); + return quad_address_p (XEXP (op, 0), mode, false); }) ;; Return 1 if the operand is suitable for load/store to vector registers with @@ -1036,6 +1075,10 @@ mode = V2DFmode; else if (mode == DImode) mode = V2DImode; + else if (mode == SImode && TARGET_P9_VECTOR) + mode = V4SImode; + else if (mode == SFmode && TARGET_P9_VECTOR) + mode = V4SFmode; else gcc_unreachable (); return memory_address_addr_space_p (mode, XEXP (op, 0), |