diff options
Diffstat (limited to 'gcc/config/rs6000/vsx.md')
| -rw-r--r-- | gcc/config/rs6000/vsx.md | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/gcc/config/rs6000/vsx.md b/gcc/config/rs6000/vsx.md index 8a51afb3c86..977ef963411 100644 --- a/gcc/config/rs6000/vsx.md +++ b/gcc/config/rs6000/vsx.md @@ -1497,9 +1497,10 @@ UNSPEC_VSX_SET))] "VECTOR_MEM_VSX_P (<MODE>mode)" { - if (INTVAL (operands[3]) == 0) + int idx_first = BYTES_BIG_ENDIAN ? 0 : 1; + if (INTVAL (operands[3]) == idx_first) return \"xxpermdi %x0,%x2,%x1,1\"; - else if (INTVAL (operands[3]) == 1) + else if (INTVAL (operands[3]) == 1 - idx_first) return \"xxpermdi %x0,%x1,%x2,0\"; else gcc_unreachable (); @@ -1514,8 +1515,12 @@ [(match_operand:QI 2 "u5bit_cint_operand" "i,i,i")])))] "VECTOR_MEM_VSX_P (<MODE>mode)" { + int fldDM; gcc_assert (UINTVAL (operands[2]) <= 1); - operands[3] = GEN_INT (INTVAL (operands[2]) << 1); + fldDM = INTVAL (operands[2]) << 1; + if (!BYTES_BIG_ENDIAN) + fldDM = 3 - fldDM; + operands[3] = GEN_INT (fldDM); return \"xxpermdi %x0,%x1,%x1,%3\"; } [(set_attr "type" "vecperm")]) @@ -1535,6 +1540,21 @@ (const_string "fpload"))) (set_attr "length" "4")]) +;; Optimize extracting element 1 from memory for little endian +(define_insn "*vsx_extract_<mode>_one_le" + [(set (match_operand:<VS_scalar> 0 "vsx_register_operand" "=ws,d,?wa") + (vec_select:<VS_scalar> + (match_operand:VSX_D 1 "indexed_or_indirect_operand" "Z,Z,Z") + (parallel [(const_int 1)])))] + "VECTOR_MEM_VSX_P (<MODE>mode) && !WORDS_BIG_ENDIAN" + "lxsd%U1x %x0,%y1" + [(set (attr "type") + (if_then_else + (match_test "update_indexed_address_mem (operands[1], VOIDmode)") + (const_string "fpload_ux") + (const_string "fpload"))) + (set_attr "length" "4")]) + ;; Extract a SF element from V4SF (define_insn_and_split "vsx_extract_v4sf" [(set (match_operand:SF 0 "vsx_register_operand" "=f,f") @@ -1555,7 +1575,7 @@ rtx op2 = operands[2]; rtx op3 = operands[3]; rtx tmp; - HOST_WIDE_INT ele = INTVAL (op2); + HOST_WIDE_INT ele = BYTES_BIG_ENDIAN ? INTVAL (op2) : 3 - INTVAL (op2); if (ele == 0) tmp = op1; |