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Merge pull request #4768 from roc-lang/expects-store-specialized-variable

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Support using dbg/expect in polymorphic functions
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Folkert de Vries 2022-12-16 00:10:40 +01:00 • committed by GitHub
commit f550f049db
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19 changed files with 390 additions and 124 deletions
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12
crates/compiler/gen_llvm/src/llvm/lowlevel.rs
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@ -11,7 +11,7 @@ use roc_builtins::bitcode::{self, FloatWidth, IntWidth};
use roc_error_macros::internal_error;
use roc_module::{low_level::LowLevel, symbol::Symbol};
use roc_mono::{
ir::HigherOrderLowLevel,
ir::{HigherOrderLowLevel, LookupType},
layout::{Builtin, LambdaSet, Layout, LayoutIds},
};
use roc_target::PtrWidth;
@ -1120,14 +1120,19 @@ pub(crate) fn run_low_level<'a, 'ctx, 'env>(
}
},
Dbg => {
// now what
arguments!(condition);
assert_eq!(args.len(), 2);
let condition = load_symbol(scope, &args[0]);
let dbg_spec_var_symbol = args[1];
if env.mode.runs_expects() {
let region = unsafe { std::mem::transmute::<_, roc_region::all::Region>(args[0]) };
let shared_memory = crate::llvm::expect::SharedMemoryPointer::get(env);
// HACK(dbg-spec-var): the specialized type variable is passed along as a fake symbol
let specialized_var =
unsafe { LookupType::from_index(dbg_spec_var_symbol.ident_id().index() as _) };
crate::llvm::expect::clone_to_shared_memory(
env,
scope,
@ -1136,6 +1141,7 @@ pub(crate) fn run_low_level<'a, 'ctx, 'env>(
args[0],
region,
&[args[0]],
&[specialized_var],
);
crate::llvm::expect::notify_parent_dbg(env, &shared_memory);