factor/basis/compiler/tests/low-level-ir.factor

USING: accessors assocs compiler compiler.cfg
compiler.cfg.debugger compiler.cfg.instructions
compiler.cfg.registers compiler.cfg.linear-scan
compiler.cfg.ssa.destruction compiler.cfg.build-stack-frame
compiler.codegen compiler.units cpu.architecture hashtables
kernel namespaces sequences tools.test vectors words layouts
literals math arrays alien.c-types alien.syntax math.private ;
IN: compiler.tests.low-level-ir

: compile-cfg ( cfg -- word )
    gensym
    [ linear-scan build-stack-frame generate ] dip
    [ associate >alist t t modify-code-heap ] keep ;

: compile-test-cfg ( -- word )
    cfg new 0 get >>entry
    dup cfg set
    dup fake-representations
    destruct-ssa
    compile-cfg ;

: compile-test-bb ( insns -- result )
    V{ T{ ##prologue } T{ ##branch } } [ clone ] map 0 test-bb
    V{
        T{ ##inc-d f 1 }
        T{ ##replace f 0 D 0 }
        T{ ##branch }
    } [ clone ] map append 1 test-bb
    V{
        T{ ##epilogue }
        T{ ##return }
    } [ clone ] map 2 test-bb
    0 1 edge
    1 2 edge
    compile-test-cfg
    execute( -- result ) ;

! loading constants
[ "hello" ] [
    V{
        T{ ##load-reference f 0 "hello" }
    } compile-test-bb
] unit-test

! make sure slot access works when the destination is
! one of the sources
[ t ] [
    V{
        T{ ##load-tagged f 1 $[ 2 cell log2 shift array type-number - ] }
        T{ ##load-reference f 0 { t f t } }
        T{ ##slot f 0 0 1 0 0 }
    } compile-test-bb
] unit-test

[ t ] [
    V{
        T{ ##load-reference f 0 { t f t } }
        T{ ##slot-imm f 0 0 2 $[ array type-number ] }
    } compile-test-bb
] unit-test

[ t ] [
    V{
        T{ ##load-tagged f 1 $[ 2 cell log2 shift array type-number - ] }
        T{ ##load-reference f 0 { t f t } }
        T{ ##set-slot f 0 0 1 0 0 }
    } compile-test-bb
    dup first eq?
] unit-test

[ t ] [
    V{
        T{ ##load-reference f 0 { t f t } }
        T{ ##set-slot-imm f 0 0 2 $[ array type-number ] }
    } compile-test-bb
    dup first eq?
] unit-test

[ 4 ] [
    V{
        T{ ##load-tagged f 0 4 }
        T{ ##shl f 0 0 0 }
    } compile-test-bb
] unit-test

[ 4 ] [
    V{
        T{ ##load-tagged f 0 4 }
        T{ ##shl-imm f 0 0 4 }
    } compile-test-bb
] unit-test

[ 31 ] [
    V{
        T{ ##load-reference f 1 B{ 31 67 52 } }
        T{ ##unbox-any-c-ptr f 2 1 }
        T{ ##load-memory-imm f 3 2 0 int-rep uchar }
        T{ ##shl-imm f 0 3 4 }
    } compile-test-bb
] unit-test

[ 1 ] [
    V{
        T{ ##load-tagged f 0 32 }
        T{ ##add-imm f 0 0 -16 }
    } compile-test-bb
] unit-test

[ -1 ] [
    V{
        T{ ##load-tagged f 1 $[ -1 tag-fixnum ] }
        T{ ##convert-integer f 0 1 char }
    } compile-test-bb
] unit-test

[ -1 ] [
    V{
        T{ ##load-tagged f 1 $[ -1 9 2^ bitxor tag-fixnum ] }
        T{ ##convert-integer f 0 1 char }
    } compile-test-bb
] unit-test

[ $[ 255 tag-bits get neg shift ] ] [
    V{
        T{ ##load-tagged f 1 $[ -1 9 2^ bitxor tag-fixnum ] }
        T{ ##convert-integer f 0 1 uchar }
    } compile-test-bb
] unit-test