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| author | Alan Modra <amodra@gmail.com> | 2013-05-06 09:49:07 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gcc.gnu.org> | 2013-05-06 09:49:07 +0930 |
| commit | 54890767f6b7de76a56e7cc6bfa2255d64bf9857 (patch) | |
| tree | a7be3e357f1cfffb597c51ba7a8d89e09bc5a8f7 /gcc | |
| parent | 2353515dafac6c7999110c09568b3cd0ba779710 (diff) | |
| download | gcc-54890767f6b7de76a56e7cc6bfa2255d64bf9857.zip gcc-54890767f6b7de76a56e7cc6bfa2255d64bf9857.tar.gz gcc-54890767f6b7de76a56e7cc6bfa2255d64bf9857.tar.bz2 | |
rs6000.md (bswapdi 2nd splitter): Don't swap words twice for little-endian.
* config/rs6000/rs6000.md (bswapdi 2nd splitter): Don't swap words
twice for little-endian.
(ashrdi3_no_power, ashrdi3): Support little-endian.
From-SVN: r198618
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.md | 34 |
2 files changed, 29 insertions, 11 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5c2aea3..e2cfb39 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2013-05-06 Alan Modra <amodra@gmail.com> + + * 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 <olegendo@gcc.gnu.org> PR target/55303 diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index bdf19f8..1e65ac1 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; |