diff options
Diffstat (limited to 'gcc/config/i386/i386.md')
| -rw-r--r-- | gcc/config/i386/i386.md | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 22ea39cf79b..408787b8ab4 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -241,6 +241,7 @@ (UNSPECV_RDTSC 18) (UNSPECV_RDTSCP 19) (UNSPECV_RDPMC 20) + (UNSPECV_VSWAPMOV 21) ]) ;; Constants to represent pcomtrue/pcomfalse variants @@ -13822,20 +13823,6 @@ operands[2] = gen_lowpart (QImode, operands[0]); }) -(define_insn_and_split "*setcc_<mode>_2" - [(set (match_operand:SWI48 0 "register_operand" "=q") - (match_operator:SWI48 1 "ix86_comparison_operator" - [(reg FLAGS_REG) (const_int 0)]))] - "TARGET_PARTIAL_REG_STALL" - "#" - "&& reload_completed" - [(set (match_dup 0) (const_int 0)) - (set (strict_low_part (match_dup 2)) (match_dup 1))] -{ - PUT_MODE (operands[1], QImode); - operands[2] = gen_lowpart (QImode, operands[0]); -}) - (define_insn "*setcc_qi" [(set (match_operand:QI 0 "nonimmediate_operand" "=qm") (match_operator:QI 1 "ix86_comparison_operator" @@ -14893,6 +14880,16 @@ (set_attr "length_immediate" "0") (set_attr "modrm" "0")]) +(define_insn "vswapmov" + [(set (match_operand:SI 0 "register_operand" "=r") + (match_operand:SI 1 "register_operand" "r")) + (unspec_volatile [(const_int 0)] UNSPECV_VSWAPMOV)] + "" + "movl.s\t{%1, %0|%0, %1}" + [(set_attr "length" "2") + (set_attr "length_immediate" "0") + (set_attr "modrm" "0")]) + ;; Pad to 16-byte boundary, max skip in op0. Used to avoid ;; branch prediction penalty for the third jump in a 16-byte ;; block on K8. |