Reproduction steps:
1. Create a new project or open an existing one
2. Add the attached Sky.compute shader in the project
3. Make sure that GLcore is included as a graphics API target in the Player settings
4. Select the shader and in the Inspector click "Show compiled code" button
5. See that u_xlat1 is initialized as float data but later used as int via floatBitsToInt

Expected results:
u_xlat1.xy = vec2(noisePeriod, intBitsToFloat(noiseStart));
for( ; floatBitsToInt(u_xlat1.y)<noiseEnd ; u_xlat1.y = intBitsToFloat(floatBitsToInt(u_xlat1.y) + 1))

Actual results:
u_xlat1.xy = vec2(noisePeriod, noiseStart);
for( ; floatBitsToInt(u_xlat1.y)<noiseEnd ; u_xlat1.y++)

Reproducible with: 2019.4.18f1, 2020.2.2f1, 2021.1.0b2, 2021.2.0a1