M-Labs/nac3
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core: Fix handling of float-to-int32 casts

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Out-of-bound conversions should be wrapped around.
This commit is contained in:
David Mak 2023-11-03 15:05:40 +08:00
parent 447eb9c387
commit 7a5a2db842
1 changed files with 58 additions and 29 deletions
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87
nac3core/src/toplevel/builtins.rs
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@ -477,12 +477,16 @@ pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(
|ctx, _, fun, args, generator| {
let int32 = ctx.primitives.int32;
let int64 = ctx.primitives.int64;
let uint32 = ctx.primitives.uint32;
let uint64 = ctx.primitives.uint64;
let float = ctx.primitives.float;
let boolean = ctx.primitives.bool;
let PrimitiveStore {
int32,
int64,
uint32,
uint64,
float,
bool: boolean,
..
} = ctx.primitives;
let arg_ty = fun.0.args[0].ty;
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator, arg_ty)?;
Ok(if ctx.unifier.unioned(arg_ty, boolean) {
@ -512,15 +516,21 @@ pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
.into(),
)
} else if ctx.unifier.unioned(arg_ty, float) {
let val = ctx
let to_int64 = ctx
.builder
.build_float_to_signed_int(
arg.into_float_value(),
ctx.ctx.i64_type(),
"",
);
let val = ctx.builder
.build_int_truncate(
to_int64,
ctx.ctx.i32_type(),
"fptosi",
)
.into();
Some(val)
"conv",
);
Some(val.into())
} else {
unreachable!()
})
@ -542,12 +552,16 @@ pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(
|ctx, _, fun, args, generator| {
let int32 = ctx.primitives.int32;
let int64 = ctx.primitives.int64;
let uint32 = ctx.primitives.uint32;
let uint64 = ctx.primitives.uint64;
let float = ctx.primitives.float;
let boolean = ctx.primitives.bool;
let PrimitiveStore {
int32,
int64,
uint32,
uint64,
float,
bool: boolean,
..
} = ctx.primitives;
let arg_ty = fun.0.args[0].ty;
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator, arg_ty)?;
Ok(
@ -609,12 +623,16 @@ pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(
|ctx, _, fun, args, generator| {
let int32 = ctx.primitives.int32;
let int64 = ctx.primitives.int64;
let uint32 = ctx.primitives.uint32;
let uint64 = ctx.primitives.uint64;
let float = ctx.primitives.float;
let boolean = ctx.primitives.bool;
let PrimitiveStore {
int32,
int64,
uint32,
uint64,
float,
bool: boolean,
..
} = ctx.primitives;
let arg_ty = fun.0.args[0].ty;
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator, arg_ty)?;
let res = if ctx.unifier.unioned(arg_ty, boolean) {
@ -661,12 +679,16 @@ pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
resolver: None,
codegen_callback: Some(Arc::new(GenCall::new(Box::new(
|ctx, _, fun, args, generator| {
let int32 = ctx.primitives.int32;
let int64 = ctx.primitives.int64;
let uint32 = ctx.primitives.uint32;
let uint64 = ctx.primitives.uint64;
let float = ctx.primitives.float;
let boolean = ctx.primitives.bool;
let PrimitiveStore {
int32,
int64,
uint32,
uint64,
float,
bool: boolean,
..
} = ctx.primitives;
let arg_ty = fun.0.args[0].ty;
let arg = args[0].1.clone().to_basic_value_enum(ctx, generator, arg_ty)?;
let res = if ctx.unifier.unioned(arg_ty, int32)
@ -727,6 +749,13 @@ pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
.build_signed_int_to_float(arg, ctx.ctx.f64_type(), "sitofp")
.into();
Some(val)
} else if [uint32, uint64].iter().any(|ty| ctx.unifier.unioned(arg_ty, *ty)) {
let arg = arg.into_int_value();
let val = ctx
.builder
.build_unsigned_int_to_float(arg, ctx.ctx.f64_type(), "uitofp")
.into();
Some(val)
} else if ctx.unifier.unioned(arg_ty, float) {
Some(arg)
} else {