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compiler.cfg.value-numbering: don't use complex addressing modes unless architecture supports it

db4
Slava Pestov 2010-05-04 05:46:21 -05:00
parent fec408260e
commit 572d7f77f8
2 changed files with 77 additions and 34 deletions
basis/compiler/cfg/value-numbering

19
basis/compiler/cfg/value-numbering/alien/alien.factor
View File

@ -70,7 +70,10 @@ M: ##unbox-alien rewrite rewrite-unbox-any-c-ptr ;
! construct a new ##load-memory or ##store-memory with the
! ##add's operand as the displacement
: fuse-displacement? ( insn -- ? )
base>> vreg>insn ##add? ;
{
[ offset>> 0 = complex-addressing? or ]
[ base>> vreg>insn ##add? ]
} 1&& ;
GENERIC: alien-insn-value ( insn -- value )
@ -106,12 +109,14 @@ M: ##store-memory-imm new-alien-insn drop \ ##store-memory new-insn ;
[ >>displacement ] [ >>scale ] bi* ;
: rewrite-memory-op ( insn -- insn/f )
{
{ [ dup fuse-base-offset? ] [ fuse-base-offset ] }
{ [ dup fuse-displacement-offset? ] [ fuse-displacement-offset ] }
{ [ dup fuse-scale? ] [ fuse-scale ] }
[ drop f ]
} cond ;
complex-addressing? [
{
{ [ dup fuse-base-offset? ] [ fuse-base-offset ] }
{ [ dup fuse-displacement-offset? ] [ fuse-displacement-offset ] }
{ [ dup fuse-scale? ] [ fuse-scale ] }
[ drop f ]
} cond
] [ drop f ] if ;
: rewrite-memory-imm-op ( insn -- insn/f )
{

92
basis/compiler/cfg/value-numbering/value-numbering-tests.factor
View File

@ -2576,7 +2576,8 @@ cpu x86? [
} value-numbering-step
] unit-test
! Base offset fusion on ##load/store-memory
! Base offset fusion on ##load/store-memory -- only on x86
cpu x86?
[
V{
T{ ##peek f 0 D 0 }
@ -2586,7 +2587,18 @@ cpu x86? [
T{ ##add-imm f 4 2 31337 }
T{ ##load-memory f 5 2 3 0 31337 int-rep c:uchar }
}
] [
]
[
V{
T{ ##peek f 0 D 0 }
T{ ##peek f 1 D 1 }
T{ ##tagged>integer f 2 0 }
T{ ##tagged>integer f 3 1 }
T{ ##add-imm f 4 2 31337 }
T{ ##load-memory f 5 4 3 0 0 int-rep c:uchar }
}
] ?
[
V{
T{ ##peek f 0 D 0 }
T{ ##peek f 1 D 1 }
@ -2597,7 +2609,8 @@ cpu x86? [
} value-numbering-step
] unit-test
! Displacement offset fusion on ##load/store-memory
! Displacement offset fusion on ##load/store-memory -- only on x86
cpu x86?
[
V{
T{ ##peek f 0 D 0 }
@ -2607,7 +2620,18 @@ cpu x86? [
T{ ##add-imm f 4 3 31337 }
T{ ##load-memory f 5 2 3 0 31338 int-rep c:uchar }
}
] [
]
[
V{
T{ ##peek f 0 D 0 }
T{ ##peek f 1 D 1 }
T{ ##tagged>integer f 2 0 }
T{ ##tagged>integer f 3 1 }
T{ ##add-imm f 4 3 31337 }
T{ ##load-memory f 5 2 4 0 1 int-rep c:uchar }
}
] ?
[
V{
T{ ##peek f 0 D 0 }
T{ ##peek f 1 D 1 }
@ -2632,6 +2656,7 @@ cpu x86? [
] unit-test
! Scale fusion on ##load/store-memory
cpu x86?
[
V{
T{ ##peek f 0 D 0 }
@ -2641,7 +2666,18 @@ cpu x86? [
T{ ##shl-imm f 4 3 2 }
T{ ##load-memory f 5 2 3 2 0 int-rep c:uchar }
}
] [
]
[
V{
T{ ##peek f 0 D 0 }
T{ ##peek f 1 D 1 }
T{ ##tagged>integer f 2 0 }
T{ ##tagged>integer f 3 1 }
T{ ##shl-imm f 4 3 2 }
T{ ##load-memory f 5 2 4 0 0 int-rep c:uchar }
}
] ?
[
V{
T{ ##peek f 0 D 0 }
T{ ##peek f 1 D 1 }
@ -2652,26 +2688,28 @@ cpu x86? [
} value-numbering-step
] unit-test
! Don't do scale fusion if there's already a scale
[ ] [
V{
T{ ##peek f 0 D 0 }
T{ ##peek f 1 D 1 }
T{ ##tagged>integer f 2 0 }
T{ ##tagged>integer f 3 1 }
T{ ##shl-imm f 4 3 2 }
T{ ##load-memory f 5 2 4 1 0 int-rep c:uchar }
} dup value-numbering-step assert=
] unit-test
cpu x86? [
! Don't do scale fusion if there's already a scale
[ ] [
V{
T{ ##peek f 0 D 0 }
T{ ##peek f 1 D 1 }
T{ ##tagged>integer f 2 0 }
T{ ##tagged>integer f 3 1 }
T{ ##shl-imm f 4 3 2 }
T{ ##load-memory f 5 2 4 1 0 int-rep c:uchar }
} dup value-numbering-step assert=
] unit-test
! Don't do scale fusion if the scale factor is out of range
[ ] [
V{
T{ ##peek f 0 D 0 }
T{ ##peek f 1 D 1 }
T{ ##tagged>integer f 2 0 }
T{ ##tagged>integer f 3 1 }
T{ ##shl-imm f 4 3 4 }
T{ ##load-memory f 5 2 4 0 0 int-rep c:uchar }
} dup value-numbering-step assert=
] unit-test
! Don't do scale fusion if the scale factor is out of range
[ ] [
V{
T{ ##peek f 0 D 0 }
T{ ##peek f 1 D 1 }
T{ ##tagged>integer f 2 0 }
T{ ##tagged>integer f 3 1 }
T{ ##shl-imm f 4 3 4 }
T{ ##load-memory f 5 2 4 0 0 int-rep c:uchar }
} dup value-numbering-step assert=
] unit-test
] when