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Change the way math/big constants are initialized

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Jeroen van Rijn
2025-09-10 21:02:24 +02:00
parent 1c648126c7
commit 3c9538c708
2 changed files with 12 additions and 20 deletions
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core/math/big/common.odin
+1 -12
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@@ -14,23 +14,12 @@ import "base:intrinsics"
This allows to benchmark and/or setting optimized values for a certain CPU without recompiling.
*/
/*
========================== TUNABLES ==========================
`initialize_constants` returns `#config(MUL_KARATSUBA_CUTOFF, _DEFAULT_MUL_KARATSUBA_CUTOFF)`
and we initialize this cutoff that way so that the procedure is used and called,
because it handles initializing the constants ONE, ZERO, MINUS_ONE, NAN and INF.
`initialize_constants` also replaces the other `_DEFAULT_*` cutoffs with custom compile-time values if so `#config`ured.
*/
/*
There is a bug with DLL globals. They don't get set.
To allow tests to run we add `-define:MATH_BIG_EXE=false` to hardcode the cutoffs for now.
*/
when #config(MATH_BIG_EXE, true) {
MUL_KARATSUBA_CUTOFF := initialize_constants()
MUL_KARATSUBA_CUTOFF := _DEFAULT_MUL_KARATSUBA_CUTOFF
SQR_KARATSUBA_CUTOFF := _DEFAULT_SQR_KARATSUBA_CUTOFF
MUL_TOOM_CUTOFF := _DEFAULT_MUL_TOOM_CUTOFF
SQR_TOOM_CUTOFF := _DEFAULT_SQR_TOOM_CUTOFF