adopt backend implementations of pow (#2334)

2024-12-25 04:33:45 +03:00 · 2022-03-03 23:39:25 +00:00 · 2022-03-03 23:39:25 +00:00 · f436388a6b
commit f436388a6b
parent f317555967
6 changed files with 171 additions and 2 deletions
--- a/libs/prelude/Prelude/Types.idr
+++ b/libs/prelude/Prelude/Types.idr
@ -794,7 +794,7 @@ log x = prim__doubleLog x

 public export
 pow : Double -> Double -> Double
-pow x y = exp (y * log x) -- prim__doublePow x y
+pow x y = prim__doublePow x y

 public export
 sin : Double -> Double
--- a/src/Compiler/Scheme/Common.idr
+++ b/src/Compiler/Scheme/Common.idr
@ -170,7 +170,7 @@ schOp StrSubstr [x, y, z] = pure $ op "string-substr" [x, y, z]
 -- `e` is Euler's number, which approximates to: 2.718281828459045
 schOp DoubleExp [x] = pure $ op "flexp" [x] -- Base is `e`. Same as: `pow(e, x)`
 schOp DoubleLog [x] = pure $ op "fllog" [x] -- Base is `e`.
-schOp DoublePow [x, y] = pure $ op "expt" [x, y]
+schOp DoublePow [x, y] = pure $ op "flexpt" [x, y]
 schOp DoubleSin [x] = pure $ op "flsin" [x]
 schOp DoubleCos [x] = pure $ op "flcos" [x]
 schOp DoubleTan [x] = pure $ op "fltan" [x]
--- a/tests/prelude/double001/Types.idr
+++ b/tests/prelude/double001/Types.idr
@ -0,0 +1,90 @@
+nan, inf : Double
+nan = 0.0 / 0.0
+inf = 1.0 / 0.0
+
+powDoubleCases : List Double
+powDoubleCases = [
+    pow (-inf) (-inf),
+    pow (-inf) (-2),
+    pow (-inf) (-0.5),
+    pow (-inf) 0,
+    pow (-inf) 0.5,
+    pow (-inf) 2,
+    pow (-inf) inf,
+    pow (-inf) nan,
+
+    pow (-2) (-inf),
+    pow (-2) (-2),
+    pow (-2) (-0.5),
+    pow (-2) 0,
+    pow (-2) 0.5,
+    pow (-2) 2,
+    pow (-2) inf,
+    pow (-2) nan,
+
+    pow (-0.5) (-inf),
+    pow (-0.5) (-2),
+    pow (-0.5) (-0.5),
+    pow (-0.5) 0,
+    pow (-0.5) 0.5,
+    pow (-0.5) 2,
+    pow (-0.5) inf,
+    pow (-0.5) nan,
+
+    pow 0 (-inf),
+    pow 0 (-2),
+    pow 0 (-0.5),
+    pow 0 0,
+    pow 0 0.5,
+    pow 0 2,
+    pow 0 inf,
+    pow 0 nan,
+
+    pow 0.5 (-inf),
+    pow 0.5 (-2),
+    pow 0.5 (-0.5),
+    pow 0.5 0,
+    pow 0.5 0.5,
+    pow 0.5 2,
+    pow 0.5 inf,
+    pow 0.5 nan,
+
+    pow 1 (-inf),
+    pow 1 (-2),
+    pow 1 (-0.5),
+    pow 1 0,
+    pow 1 0.5,
+    pow 1 2,
+    pow 1 inf,
+    pow 1 nan,
+
+    pow 2 (-inf),
+    pow 2 (-2),
+    pow 2 (-0.5),
+    pow 2 0,
+    pow 2 0.5,
+    pow 2 2,
+    pow 2 inf,
+    pow 2 nan,
+
+    pow inf (-inf),
+    pow inf (-2),
+    pow inf (-0.5),
+    pow inf 0,
+    pow inf 0.5,
+    pow inf 2,
+    pow inf inf,
+    pow inf nan,
+
+    pow nan (-inf),
+    pow nan (-2),
+    pow nan (-0.5),
+    pow nan 0,
+    pow nan 0.5,
+    pow nan 2,
+    pow nan inf,
+    pow nan nan
+  ]
+
+main : IO ()
+main = traverse_ printLn powDoubleCases
--- a/tests/prelude/double001/expected
+++ b/tests/prelude/double001/expected
@ -0,0 +1,74 @@
+1/1: Building Types (Types.idr)
+Main> 0.0
+0.0
+0.0
+1.0
+inf.0
+inf.0
+inf.0
+nan.0
+0.0
+0.25
+nan.0
+1.0
+nan.0
+4.0
+inf.0
+nan.0
+inf.0
+4.0
+nan.0
+1.0
+nan.0
+0.25
+0.0
+nan.0
+inf.0
+inf.0
+inf.0
+1.0
+0.0
+0.0
+0.0
+nan.0
+inf.0
+4.0
+1.4142135623730951
+1.0
+0.7071067811865476
+0.25
+0.0
+nan.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+1.0
+0.0
+0.25
+0.7071067811865476
+1.0
+1.4142135623730951
+4.0
+inf.0
+nan.0
+0.0
+0.0
+0.0
+1.0
+inf.0
+inf.0
+inf.0
+nan.0
+nan.0
+nan.0
+nan.0
+1.0
+nan.0
+nan.0
+nan.0
+nan.0
+Main> Bye for now!
--- a/tests/prelude/double001/input
+++ b/tests/prelude/double001/input
@ -0,0 +1,2 @@
+:exec main
+:q
--- a/tests/prelude/double001/run
+++ b/tests/prelude/double001/run
@ -0,0 +1,3 @@
+rm -rf build
+
+$1 --no-banner --no-color --console-width 0 Types.idr < input