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improve gen-condition comparisons codegen for simple 32-bit cases

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Jeremy Penner 2021-08-16 22:12:26 -04:00
parent 6eec75d5f2
commit 7caf47ae37
2 changed files with 5 additions and 5 deletions
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9
ssc/init.fnl
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@ -172,12 +172,13 @@
(let [[lhs rhs] args (let [[lhs rhs] args
ropgen (self:push-opgen rhs) ropgen (self:push-opgen rhs)
pre (when ropgen.setup (ropgen.setup)) pre (when ropgen.setup (ropgen.setup))
(left etype) (self:expr-poly lhs) lopgen (self:expr-opgen lhs)
left (when lopgen.setup (lopgen.setup) (if ropgen.hi :long :word))
truebranch (if ropgen.cleanup (.. :-if-true-cleanup- depth) truelabel) truebranch (if ropgen.cleanup (.. :-if-true-cleanup- depth) truelabel)
falsebranch (if ropgen.cleanup (.. :-if-false-cleanup- depth) falselabel) falsebranch (if ropgen.cleanup (.. :-if-false-cleanup- depth) falselabel)
hibranch (when (= etype :long) hibranch (when lopgen.hi
[[:lda self.LONG_HI] (ropgen.hi :cmp) (cmp.hibranch truebranch falsebranch) [:lda self.LONG_LO]]) [(lopgen.hi :lda) (ropgen.hi :cmp) (cmp.hibranch truebranch falsebranch)])
lobranch [(ropgen.lo :cmp) (cmp.lobranch falsebranch)] lobranch [(lopgen.lo :lda) (ropgen.lo :cmp) (cmp.lobranch falsebranch)]
cleanup (when ropgen.cleanup (ropgen.cleanup)) cleanup (when ropgen.cleanup (ropgen.cleanup))
post (if cleanup [truebranch cleanup [:bra truelabel] falsebranch cleanup [:bra falselabel]] post (if cleanup [truebranch cleanup [:bra truelabel] falsebranch cleanup [:bra falselabel]]
?branch-when-true [[:bra truelabel]])] ?branch-when-true [[:bra truelabel]])]

1
ssc/notes.txt
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@ -1,5 +1,4 @@
full compilation to expr-opgen TODO: full compilation to expr-opgen TODO:
- gen-condition could potentially use it for lhs which is on the stack / in a global
- word! and long! are a mess right now - word! and long! are a mess right now
- I don't think word-at and long-at could use it - I don't think word-at and long-at could use it