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code gen for simple guards

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Guards cannot use variables bound in the pattern yet
This commit is contained in:
Folkert 2020-03-21 22:27:36 +01:00
parent bd7ad318cf
commit a16d48a6a9
4 changed files with 490 additions and 293 deletions
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13
compiler/gen/src/crane/build.rs
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@ -771,13 +771,24 @@ fn call_by_name<'a, B: Backend>(
.ins()
.load(env.ptr_sized_int(), MemFlags::new(), list_ptr, offset)
}
Symbol::INT_EQ_I64 | Symbol::INT_EQ_I8 | Symbol::INT_EQ_I1 => {
Symbol::INT_EQ_I64 | Symbol::INT_EQ_I8 => {
debug_assert!(args.len() == 2);
let a = build_arg(&args[0], env, scope, module, builder, procs);
let b = build_arg(&args[1], env, scope, module, builder, procs);
builder.ins().icmp(IntCC::Equal, a, b)
}
Symbol::INT_EQ_I1 => {
debug_assert!(args.len() == 2);
let a = build_arg(&args[0], env, scope, module, builder, procs);
let b = build_arg(&args[1], env, scope, module, builder, procs);
// integer comparisons don't work for booleans, and a custom xand gives errors.
let p = builder.ins().bint(types::I8, a);
let q = builder.ins().bint(types::I8, b);
builder.ins().icmp(IntCC::Equal, p, q)
}
Symbol::FLOAT_EQ => {
debug_assert!(args.len() == 2);
let a = build_arg(&args[0], env, scope, module, builder, procs);