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Add explicit LONDON_MXPX_THRESHOLD #749

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Merged
merged 2 commits into from
Sep 10, 2025
Merged

Add explicit LONDON_MXPX_THRESHOLD #749

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a2ca93f
ras: add london mxpx constraint
letypequividelespoubelles Sep 10, 2025
c897506
ras
OlivierBBB Sep 10, 2025
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2 changes: 1 addition & 1 deletion mxp/cancun/computations/_constants_and_shorthands.lisp
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@


(defconst
MXPX_THRESHOLD 0xffffffff ;; 256 ** 4 - 1
CANCUN_MXPX_THRESHOLD 0xffffffff ;; 256 ** 4 - 1
)

;;;;;;;;;;;;;;;;;;;;;;;;;
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8 changes: 4 additions & 4 deletions mxp/cancun/computations/not_msize_nor_trivial.lisp
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Expand Up @@ -13,7 +13,7 @@
(mxp-shorthand---size-1-hi)
(mxp-shorthand---size-1-lo)
0
MXPX_THRESHOLD
CANCUN_MXPX_THRESHOLD
))

(defconstraint computations---not-msize-nor-trivial---smallness-test-for-SIZE_2
Expand All @@ -22,7 +22,7 @@
(mxp-shorthand---size-2-hi)
(mxp-shorthand---size-2-lo)
0
MXPX_THRESHOLD
CANCUN_MXPX_THRESHOLD
))


Expand All @@ -44,7 +44,7 @@
(mxp-shorthand---offset-1-hi)
(mxp-shorthand---offset-1-lo)
0
MXPX_THRESHOLD
CANCUN_MXPX_THRESHOLD
))

(defconstraint computations---not-msize-nor-trivial---smallness-test-for-OFFSET_2
Expand All @@ -53,7 +53,7 @@
(mxp-shorthand---offset-2-hi)
(mxp-shorthand---offset-2-lo)
0
MXPX_THRESHOLD
CANCUN_MXPX_THRESHOLD
))


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3 changes: 2 additions & 1 deletion mxp/london/constants.lisp
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Expand Up @@ -4,6 +4,7 @@
CT_MAX_TRIVIAL 0
CT_MAX_NON_TRIVIAL 3
CT_MAX_NON_TRIVIAL_BUT_MXPX 16
TWO_POW_32 4294967296)
TWO_POW_32 4294967296
LONDON_MXPX_THRESHOLD TWO_POW_32)


4 changes: 2 additions & 2 deletions mxp/london/constraints.lisp
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Original file line number Diff line number Diff line change
Expand Up @@ -266,8 +266,8 @@
(defconstraint offsets-out-of-bounds (:guard (standing-hypothesis))
(if-eq MXPX 1
(if-eq CT CT_MAX_NON_TRIVIAL_BUT_MXPX
(or! (eq! (- MAX_OFFSET_1 TWO_POW_32) [ACC 1])
(eq! (- MAX_OFFSET_2 TWO_POW_32) [ACC 2])))))
(or! (eq! (- MAX_OFFSET_1 LONDON_MXPX_THRESHOLD) [ACC 1])
(eq! (- MAX_OFFSET_2 LONDON_MXPX_THRESHOLD) [ACC 2])))))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
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