https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97259
Bug ID: 97259
Summary: Incorrect ENQCMD and ENQCMDS patterns
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: crazylht at gmail dot com, wwwhhhyyy333 at gmail dot com
Target Milestone: ---
i386.md has
;; ENQCMD and ENQCMDS
(define_int_iterator ENQCMD [UNSPECV_ENQCMD UNSPECV_ENQCMDS])
(define_int_attr enqcmd_sfx [(UNSPECV_ENQCMD "") (UNSPECV_ENQCMDS "s")])
(define_insn "@enqcmd<enqcmd_sfx>_<mode>"
[(set (reg:CCZ FLAGS_REG)
(unspec_volatile:CCZ [(match_operand:P 0 "register_operand" "r")
(match_operand:XI 1 "memory_operand" "m")]
ENQCMD))]
"TARGET_ENQCMD"
"enqcmd<enqcmd_sfx>\t{%1, %0|%0, %1}"
[(set_attr "type" "other")])
They write 512 bytes at address in register operand.
