diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5c2aea36ed9..e2cfb396000 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2013-05-06 Alan Modra + + * config/rs6000/rs6000.md (bswapdi 2nd splitter): Don't swap words + twice for little-endian. + (ashrdi3_no_power, ashrdi3): Support little-endian. + 2013-05-06 Oleg Endo PR target/55303 diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index bdf19f8df47..1e65ac1cde0 100644 --- a/gcc/config/rs6000/rs6000.md +++ b/gcc/config/rs6000/rs6000.md @@ -2329,16 +2329,14 @@ { word_high = change_address (dest, SImode, addr1); word_low = change_address (dest, SImode, addr2); - emit_insn (gen_bswapsi2 (word_high, src_si)); - emit_insn (gen_bswapsi2 (word_low, op3_si)); } else { word_high = change_address (dest, SImode, addr2); word_low = change_address (dest, SImode, addr1); - emit_insn (gen_bswapsi2 (word_low, src_si)); - emit_insn (gen_bswapsi2 (word_high, op3_si)); } + emit_insn (gen_bswapsi2 (word_high, src_si)); + emit_insn (gen_bswapsi2 (word_low, op3_si)); }") (define_split @@ -6634,10 +6632,25 @@ [(set (match_operand:DI 0 "gpc_reg_operand" "=&r,&r") (ashiftrt:DI (match_operand:DI 1 "gpc_reg_operand" "r,r") (match_operand:SI 2 "const_int_operand" "M,i")))] - "TARGET_32BIT && !TARGET_POWERPC64 && WORDS_BIG_ENDIAN" - "@ - srawi %0,%1,31\;srawi %L0,%1,%h2 - srwi %L0,%L1,%h2\;insrwi %L0,%1,%h2,0\;srawi %0,%1,%h2" + "!TARGET_POWERPC64" + "* +{ + switch (which_alternative) + { + default: + gcc_unreachable (); + case 0: + if (WORDS_BIG_ENDIAN) + return \"srawi %0,%1,31\;srawi %L0,%1,%h2\"; + else + return \"srawi %L0,%L1,31\;srawi %0,%L1,%h2\"; + case 1: + if (WORDS_BIG_ENDIAN) + return \"srwi %L0,%L1,%h2\;insrwi %L0,%1,%h2,0\;srawi %0,%1,%h2\"; + else + return \"srwi %0,%1,%h2\;insrwi %0,%L1,%h2,0\;srawi %L0,%L1,%h2\"; + } +}" [(set_attr "type" "two,three") (set_attr "length" "8,12")]) @@ -7734,13 +7747,12 @@ [(set (match_operand:DI 0 "gpc_reg_operand" "") (ashiftrt:DI (match_operand:DI 1 "gpc_reg_operand" "") (match_operand:SI 2 "reg_or_cint_operand" "")))] - "WORDS_BIG_ENDIAN" + "" " { if (TARGET_POWERPC64) ; - else if (TARGET_32BIT && GET_CODE (operands[2]) == CONST_INT - && WORDS_BIG_ENDIAN) + else if (GET_CODE (operands[2]) == CONST_INT) { emit_insn (gen_ashrdi3_no_power (operands[0], operands[1], operands[2])); DONE;