Some simple integer math opts (#1504)

Stuff like x + 5 != 2 => x != -3.

Also some cleanups of utility functions I noticed while writing this, isTypeFloat => isFloatType.

Inspired by

https://github.com/golang/go/blob/master/src/cmd/compile/internal/ssa/gen/generic.rules

1 files changed, 1 insertions, 1 deletions

diff --git a/src/parsing.h b/src/parsing.h
index cb6ee8c4b..06797cf54 100644
--- a/src/parsing.h
+++ b/src/parsing.h
@@ -80,7 +80,7 @@ inline Expression* parseConst(cashew::IString s, Type type, MixedArena& allocato
   const char *str = s.str;
   auto ret = allocator.alloc<Const>();
   ret->type = type;
-  if (isTypeFloat(type)) {
+  if (isFloatType(type)) {
     if (s == _INFINITY) {
       switch (type) {
         case f32: ret->value = Literal(std::numeric_limits<float>::infinity()); break;