mirror of
https://github.com/NixOS/nixpkgs.git
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33 lines
817 B
Nix
33 lines
817 B
Nix
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{ stdenv
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, writeText
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, qbe
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}:
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# The hello world program available at https://c9x.me/compile/
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let helloWorld = writeText "hello-world.ssa" ''
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function w $add(w %a, w %b) { # Define a function add
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@start
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%c =w add %a, %b # Adds the 2 arguments
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ret %c # Return the result
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}
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export function w $main() { # Main function
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@start
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%r =w call $add(w 1, w 1) # Call add(1, 1)
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call $printf(l $fmt, w %r, ...) # Show the result
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ret 0
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}
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data $fmt = { b "One and one make %d!\n", b 0 }
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'';
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in stdenv.mkDerivation {
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name = "qbe-test-can-run-hello-world";
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meta.timeout = 10;
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buildCommand = ''
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${qbe}/bin/qbe -o asm.s ${helloWorld}
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cc -o out asm.s
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./out | grep 'One and one make 2!'
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touch $out
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'';
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}
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