Fix progresbar display issues on Win/Lin

Author: WyattBlue

src/analyze/audio.nim

@@ -10,7 +10,11 @@ import ../util/bar
 import ../resampler
 
 # Enable project wide
-{.passC: "-fno-signaling-nans -fno-math-errno -fno-trapping-math -freciprocal-math".}
+when defined(macosx):
+  # Apply fast-math for clang: see https://simonbyrne.github.io/notes/fastmath/
+  {.passC: "-ffast-math".}
+else:
+  {.passC: "-fno-signaling-nans -fno-math-errno -fno-trapping-math -freciprocal-math".}
 {.passL: "-flto".}
 
 type
@@ -116,10 +120,6 @@ proc readChunk(iter: AudioIterator): float32 =
 
   var maxAbs: float32 = 0.0
 
-  # Apply fast-math locally: see https://simonbyrne.github.io/notes/fastmath/
-  {.push optimization: speed.}
-  {.passC: "-ffast-math".}
-
   # SIMD-style loop (unrolled)
   for i in countup(0, simdSamples - 1, simdWidth):
     let v0 = abs(samples[i])
@@ -133,8 +133,6 @@ proc readChunk(iter: AudioIterator): float32 =
   for i in simdSamples ..< totalSamples:
     maxAbs = max(maxAbs, abs(samples[i]))
 
-  {.pop.}
-
   return maxAbs
 
 proc flushResampler(iter: AudioIterator) =