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| author | Jakub Jelinek <jakub@redhat.com> | 2004-06-24 19:54:13 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2004-06-24 19:54:13 +0200 |
| commit | d413e3cc11c3b1d746ed9d187b4a7e695355219a (patch) | |
| tree | ddac68326a5340d687fafc34eca1acc9157db4c3 /gcc/config | |
| parent | d42093a1dbfe8be8a96829b8783da5efe8c3d7c8 (diff) | |
| download | gcc-d413e3cc11c3b1d746ed9d187b4a7e695355219a.zip gcc-d413e3cc11c3b1d746ed9d187b4a7e695355219a.tar.gz gcc-d413e3cc11c3b1d746ed9d187b4a7e695355219a.tar.bz2 | |
i386.md (ffsdi2, clzdi2): New expanders.
* config/i386/i386.md (ffsdi2, clzdi2): New expanders.
(ffs_rex64): New splitter.
(ffsdi_1, ctzdi2, bsr_rex64): New instructions.
From-SVN: r83604
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/i386/i386.md | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index f7270a8..13d32eb 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -14005,6 +14005,44 @@ "bsf{l}\t{%1, %0|%0, %1}" [(set_attr "prefix_0f" "1")]) +(define_expand "ffsdi2" + [(parallel + [(set (match_operand:DI 0 "register_operand" "") + (ffs:DI (match_operand:DI 1 "nonimmediate_operand" ""))) + (clobber (match_scratch:DI 2 "")) + (clobber (reg:CC 17))])] + "TARGET_64BIT && TARGET_CMOVE" + "") + +(define_insn_and_split "*ffs_rex64" + [(set (match_operand:DI 0 "register_operand" "=r") + (ffs:DI (match_operand:DI 1 "nonimmediate_operand" "rm"))) + (clobber (match_scratch:DI 2 "=&r")) + (clobber (reg:CC 17))] + "TARGET_64BIT && TARGET_CMOVE" + "#" + "&& reload_completed" + [(set (match_dup 2) (const_int -1)) + (parallel [(set (reg:CCZ 17) (compare:CCZ (match_dup 1) (const_int 0))) + (set (match_dup 0) (ctz:DI (match_dup 1)))]) + (set (match_dup 0) (if_then_else:DI + (eq (reg:CCZ 17) (const_int 0)) + (match_dup 2) + (match_dup 0))) + (parallel [(set (match_dup 0) (plus:DI (match_dup 0) (const_int 1))) + (clobber (reg:CC 17))])] + "") + +(define_insn "*ffsdi_1" + [(set (reg:CCZ 17) + (compare:CCZ (match_operand:DI 1 "nonimmediate_operand" "rm") + (const_int 0))) + (set (match_operand:DI 0 "register_operand" "=r") + (ctz:DI (match_dup 1)))] + "TARGET_64BIT" + "bsf{q}\t{%1, %0|%0, %1}" + [(set_attr "prefix_0f" "1")]) + (define_insn "ctzsi2" [(set (match_operand:SI 0 "register_operand" "=r") (ctz:SI (match_operand:SI 1 "nonimmediate_operand" "rm"))) @@ -14013,6 +14051,14 @@ "bsf{l}\t{%1, %0|%0, %1}" [(set_attr "prefix_0f" "1")]) +(define_insn "ctzdi2" + [(set (match_operand:DI 0 "register_operand" "=r") + (ctz:DI (match_operand:DI 1 "nonimmediate_operand" "rm"))) + (clobber (reg:CC 17))] + "TARGET_64BIT" + "bsf{q}\t{%1, %0|%0, %1}" + [(set_attr "prefix_0f" "1")]) + (define_expand "clzsi2" [(parallel [(set (match_operand:SI 0 "register_operand" "") @@ -14033,6 +14079,27 @@ "" "bsr{l}\t{%1, %0|%0, %1}" [(set_attr "prefix_0f" "1")]) + +(define_expand "clzdi2" + [(parallel + [(set (match_operand:DI 0 "register_operand" "") + (minus:DI (const_int 63) + (clz:DI (match_operand:DI 1 "nonimmediate_operand" "")))) + (clobber (reg:CC 17))]) + (parallel + [(set (match_dup 0) (xor:DI (match_dup 0) (const_int 63))) + (clobber (reg:CC 17))])] + "TARGET_64BIT" + "") + +(define_insn "*bsr_rex64" + [(set (match_operand:DI 0 "register_operand" "=r") + (minus:DI (const_int 63) + (clz:DI (match_operand:DI 1 "nonimmediate_operand" "rm")))) + (clobber (reg:CC 17))] + "TARGET_64BIT" + "bsr{q}\t{%1, %0|%0, %1}" + [(set_attr "prefix_0f" "1")]) ;; Thread-local storage patterns for ELF. ;; |