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advent of code day 1

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This commit is contained in:
Antoni Piasecki
2025-12-18 14:04:44 +01:00
parent 7855e5b092
commit 9f39f627ad
21 changed files with 114 additions and 19 deletions
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13
src/codegen_x86_64.rs
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@@ -254,11 +254,14 @@ _builtin_environ:
self.compile_stmt(env, *body)?;
// fallback to returning null
emit!(&mut self.output, " mov rax, 0");
emit!(&mut self.output, " mov rsp, rbp");
emit!(&mut self.output, " pop rbp");
emit!(&mut self.output, " ret");
// fallback to null
// very hacky but works
if !self.output.trim_end().ends_with(" ret") {
emit!(&mut self.output, " mov rax, 0");
emit!(&mut self.output, " mov rsp, rbp");
emit!(&mut self.output, " pop rbp");
emit!(&mut self.output, " ret");
}
}
Stmt::Return(expr) => {
self.compile_expr(env, expr)?;