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author | Adam Nemet <anemet@caviumnetworks.com> | 2008-09-04 21:24:31 +0000 |
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committer | Adam Nemet <nemet@gcc.gnu.org> | 2008-09-04 21:24:31 +0000 |
commit | c84241327480cec52608beaba811faf1f09e0b03 (patch) | |
tree | dc0bd06f267d1ef48787f27859cb224f630704eb /gcc/config/mips | |
parent | 49912bcd97ec640f130fcf1551ea472d50f06f53 (diff) | |
download | gcc-c84241327480cec52608beaba811faf1f09e0b03.zip gcc-c84241327480cec52608beaba811faf1f09e0b03.tar.gz gcc-c84241327480cec52608beaba811faf1f09e0b03.tar.bz2 |
mips.h (ISA_HAS_EXTS): New macro.
* config/mips/mips.h (ISA_HAS_EXTS): New macro.
* config/mips/mips.md (*ashr_trunc<mode>): Name the pattern
combining an arithmetic right shift by more than 31 and a
trunction. Don't match for out-of-range shift amounts. Set
attribute mode to <MODE>.
(*lshr32_trunc<mode>): Name the pattern combining a logical right
shift by 32 and and a truncation. Set attribute mode to <MODE>.
(*<optab>_trunc<mode>_exts): New pattern for truncated right
shifts by less than 32.
(extv): Change predicate on first operand to accept registers.
Change predicate of the other operands from immediate_operand to
const_int_operand. Expand exts when source is a register.
(extzv): Change predicate of the constant operands from
immediate_operand to const_int_operand.
(extzv<mode>): Change predicate of the constant operands from
immediate_operand to const_int_operand and no constraint. Also
remove mode.
(*extzv_trunc<mode>_exts): New pattern.
testsuite/
* gcc.target/mips/truncate-2.c: New test.
* gcc.target/mips/octeon-exts-1.c: New test.
* gcc.target/mips/octeon-exts-2.c: New test.
* gcc.target/mips/octeon-exts-3.c: New test.
* gcc.target/mips/octeon-exts-4.c: New test.
From-SVN: r140009
Diffstat (limited to 'gcc/config/mips')
-rw-r--r-- | gcc/config/mips/mips.h | 3 | ||||
-rw-r--r-- | gcc/config/mips/mips.md | 72 |
2 files changed, 63 insertions, 12 deletions
diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h index a3f47f7..4677546 100644 --- a/gcc/config/mips/mips.h +++ b/gcc/config/mips/mips.h @@ -1012,6 +1012,9 @@ enum mips_code_readable_setting { /* ISA includes the cins instruction. */ #define ISA_HAS_CINS TARGET_OCTEON +/* ISA includes the exts instruction. */ +#define ISA_HAS_EXTS TARGET_OCTEON + /* ISA includes the pop instruction. */ #define ISA_HAS_POP TARGET_OCTEON diff --git a/gcc/config/mips/mips.md b/gcc/config/mips/mips.md index 04dd30a..0f478cf 100644 --- a/gcc/config/mips/mips.md +++ b/gcc/config/mips/mips.md @@ -772,6 +772,10 @@ ;; to use the same template. (define_code_iterator any_extend [sign_extend zero_extend]) +;; This code iterator allows the two right shift instructions to be +;; generated from the same template. +(define_code_iterator any_shiftrt [ashiftrt lshiftrt]) + ;; This code iterator allows the three shift instructions to be generated ;; from the same template. (define_code_iterator any_shift [ashift ashiftrt lshiftrt]) @@ -2683,17 +2687,17 @@ ;; Combiner patterns to optimize shift/truncate combinations. -(define_insn "" +(define_insn "*ashr_trunc<mode>" [(set (match_operand:SUBDI 0 "register_operand" "=d") (truncate:SUBDI (ashiftrt:DI (match_operand:DI 1 "register_operand" "d") (match_operand:DI 2 "const_arith_operand" ""))))] - "TARGET_64BIT && !TARGET_MIPS16 && INTVAL (operands[2]) >= 32" + "TARGET_64BIT && !TARGET_MIPS16 && IN_RANGE (INTVAL (operands[2]), 32, 63)" "dsra\t%0,%1,%2" [(set_attr "type" "shift") - (set_attr "mode" "SI")]) + (set_attr "mode" "<MODE>")]) -(define_insn "" +(define_insn "*lshr32_trunc<mode>" [(set (match_operand:SUBDI 0 "register_operand" "=d") (truncate:SUBDI (lshiftrt:DI (match_operand:DI 1 "register_operand" "d") @@ -2701,8 +2705,19 @@ "TARGET_64BIT && !TARGET_MIPS16" "dsra\t%0,%1,32" [(set_attr "type" "shift") - (set_attr "mode" "SI")]) + (set_attr "mode" "<MODE>")]) +;; Logical shift by 32 or more results in proper SI values so +;; truncation is removed by the middle end. +(define_insn "*<optab>_trunc<mode>_exts" + [(set (match_operand:SUBDI 0 "register_operand" "=d") + (truncate:SUBDI + (any_shiftrt:DI (match_operand:DI 1 "register_operand" "d") + (match_operand:DI 2 "const_arith_operand" ""))))] + "ISA_HAS_EXTS && TARGET_64BIT && UINTVAL (operands[2]) < 32" + "exts\t%0,%1,%2,31" + [(set_attr "type" "arith") + (set_attr "mode" "<MODE>")]) ;; Combiner patterns for truncate/sign_extend combinations. The SI versions ;; use the shift/truncate patterns above. @@ -3353,24 +3368,46 @@ (define_expand "extv" [(set (match_operand 0 "register_operand") - (sign_extract (match_operand:QI 1 "memory_operand") - (match_operand 2 "immediate_operand") - (match_operand 3 "immediate_operand")))] + (sign_extract (match_operand 1 "nonimmediate_operand") + (match_operand 2 "const_int_operand") + (match_operand 3 "const_int_operand")))] "!TARGET_MIPS16" { if (mips_expand_ext_as_unaligned_load (operands[0], operands[1], INTVAL (operands[2]), INTVAL (operands[3]))) DONE; + else if (register_operand (operands[1], GET_MODE (operands[0])) + && ISA_HAS_EXTS && UINTVAL (operands[2]) <= 32) + { + if (GET_MODE (operands[0]) == DImode) + emit_insn (gen_extvdi (operands[0], operands[1], operands[2], + operands[3])); + else + emit_insn (gen_extvsi (operands[0], operands[1], operands[2], + operands[3])); + DONE; + } else FAIL; }) +(define_insn "extv<mode>" + [(set (match_operand:GPR 0 "register_operand" "=d") + (sign_extract:GPR (match_operand:GPR 1 "register_operand" "d") + (match_operand 2 "const_int_operand" "") + (match_operand 3 "const_int_operand" "")))] + "ISA_HAS_EXTS && UINTVAL (operands[2]) <= 32" + "exts\t%0,%1,%3,%m2" + [(set_attr "type" "arith") + (set_attr "mode" "<MODE>")]) + + (define_expand "extzv" [(set (match_operand 0 "register_operand") (zero_extract (match_operand 1 "nonimmediate_operand") - (match_operand 2 "immediate_operand") - (match_operand 3 "immediate_operand")))] + (match_operand 2 "const_int_operand") + (match_operand 3 "const_int_operand")))] "!TARGET_MIPS16" { if (mips_expand_ext_as_unaligned_load (operands[0], operands[1], @@ -3395,14 +3432,25 @@ (define_insn "extzv<mode>" [(set (match_operand:GPR 0 "register_operand" "=d") (zero_extract:GPR (match_operand:GPR 1 "register_operand" "d") - (match_operand:SI 2 "immediate_operand" "I") - (match_operand:SI 3 "immediate_operand" "I")))] + (match_operand 2 "const_int_operand" "") + (match_operand 3 "const_int_operand" "")))] "mips_use_ins_ext_p (operands[1], INTVAL (operands[2]), INTVAL (operands[3]))" "<d>ext\t%0,%1,%3,%2" [(set_attr "type" "arith") (set_attr "mode" "<MODE>")]) +(define_insn "*extzv_trunc<mode>_exts" + [(set (match_operand:GPR 0 "register_operand" "=d") + (truncate:GPR + (zero_extract:DI (match_operand:DI 1 "register_operand" "d") + (match_operand 2 "const_int_operand" "") + (match_operand 3 "const_int_operand" ""))))] + "ISA_HAS_EXTS && TARGET_64BIT && IN_RANGE (INTVAL (operands[2]), 32, 63)" + "exts\t%0,%1,%3,31" + [(set_attr "type" "arith") + (set_attr "mode" "<MODE>")]) + (define_expand "insv" [(set (zero_extract (match_operand 0 "nonimmediate_operand") |