Reproduction link or steps
function noop() {}
noop()https://repl.rolldown.rs/#eNptjlEKwjAQRK+y7E8VSg8Q8AyC3/kp7UaL7SYkG62E3N3UWhT0b5adeTMJDaqEA/c0NxIWzag+d41dOU3kTgbLwNa63R5S1rxKzcVCqMRHyjV6O469vXPTWTbD+Yv457Oyh8lZLyAPR5Dg9LYd3dIXIIPxdoJqi1eaCyAIrBj1EzhA0gwgnihc2iupIiNpLos10/zq6sm0cdwYmMvwW1kytkJBMD8BZSlhfA==
What is expected?
The pure function and its call should be able to be eliminated, resulting in an empty output.
What is actually happening?
Without adding an annotation to indicate the function has not side-effects, it is not determined to be pure and is not eliminated from the output.
System Info
System:
OS: macOS 26.3.1
CPU: (10) arm64 Apple M1 Pro
Memory: 83.36 MB / 16.00 GB
Shell: 5.9 - /bin/zsh
Binaries:
Node: 24.14.0 - /Users/rturnquist/.nvm/versions/node/v24.14.0/bin/node
Yarn: 1.22.22 - /Users/rturnquist/.nvm/versions/node/v24.14.0/bin/yarn
npm: 11.6.0 - /Users/rturnquist/.nvm/versions/node/v24.14.0/bin/npm
Deno: 2.6.0 - /Users/rturnquist/.deno/bin/deno
Browsers:
Chrome: 147.0.7727.102
Firefox: 149.0.2
Safari: 26.3.1Any additional comments?
No response
Reproduction link or steps
https://repl.rolldown.rs/#eNptjlEKwjAQRK+y7E8VSg8Q8AyC3/kp7UaL7SYkG62E3N3UWhT0b5adeTMJDaqEA/c0NxIWzag+d41dOU3kTgbLwNa63R5S1rxKzcVCqMRHyjV6O469vXPTWTbD+Yv457Oyh8lZLyAPR5Dg9LYd3dIXIIPxdoJqi1eaCyAIrBj1EzhA0gwgnihc2iupIiNpLos10/zq6sm0cdwYmMvwW1kytkJBMD8BZSlhfA==
What is expected?
The pure function and its call should be able to be eliminated, resulting in an empty output.
What is actually happening?
Without adding an annotation to indicate the function has not side-effects, it is not determined to be pure and is not eliminated from the output.
System Info
System: OS: macOS 26.3.1 CPU: (10) arm64 Apple M1 Pro Memory: 83.36 MB / 16.00 GB Shell: 5.9 - /bin/zsh Binaries: Node: 24.14.0 - /Users/rturnquist/.nvm/versions/node/v24.14.0/bin/node Yarn: 1.22.22 - /Users/rturnquist/.nvm/versions/node/v24.14.0/bin/yarn npm: 11.6.0 - /Users/rturnquist/.nvm/versions/node/v24.14.0/bin/npm Deno: 2.6.0 - /Users/rturnquist/.deno/bin/deno Browsers: Chrome: 147.0.7727.102 Firefox: 149.0.2 Safari: 26.3.1Any additional comments?
No response