Aadityavardhan
/
nac3_sca
forked from M-Labs/nac3
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

fixed M-Labs/nac3#146

escape-analysis
pca006132 2021-12-27 22:50:36 +08:00
parent 521f136f2e
commit 1bd966965e
3 changed files with 17 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
nac3core/src/codegen/expr.rs
View File

@ -488,7 +488,6 @@ pub fn allocate_list<'ctx, 'a, G: CodeGenerator>(
let ptr_to_arr =
ctx.builder.build_in_bounds_gep(arr_str_ptr, &[zero, i32_t.const_zero()], "ptr_to_arr");
ctx.builder.build_store(ptr_to_arr, arr_ptr);
println!("arr_str_ptr: {:?}", arr_str_ptr);
arr_str_ptr
}
}

3
nac3core/src/codegen/stmt.rs
View File

@ -68,7 +68,7 @@ pub fn gen_store_target<'ctx, 'a, G: CodeGenerator>(
.into_int_value();
unsafe {
let arr_ptr = ctx
.build_gep_and_load(v, &[i32_type.const_zero(), i32_type.const_int(1, false)])
.build_gep_and_load(v, &[i32_type.const_zero(), i32_type.const_zero()])
.into_pointer_value();
ctx.builder.build_gep(arr_ptr, &[index], "loadarrgep")
}
@ -168,7 +168,6 @@ pub fn gen_for<'ctx, 'a, G: CodeGenerator>(
);
ctx.builder.position_at_end(body_bb);
} else {
println!("{:?}", iter_val);
let counter = generator.gen_var_alloc(ctx, size_t.into());
// counter = -1
ctx.builder.build_store(counter, size_t.const_int(u64::max_value(), true));

27
nac3core/src/toplevel/builtins.rs
View File

@ -589,7 +589,12 @@ pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
} else {
let int32 = ctx.ctx.i32_type();
let zero = int32.const_zero();
Some(ctx.build_gep_and_load(arg.into_pointer_value(), &[zero, zero]))
let len = ctx.build_gep_and_load(arg.into_pointer_value(), &[zero, int32.const_int(1, false)]).into_int_value();
if len.get_type().get_bit_width() != 32 {
Some(ctx.builder.build_int_truncate(len, int32, "len2i32").into())
} else {
Some(len.into())
}
}
},
)))),
@ -624,7 +629,7 @@ pub fn get_builtins(primitives: &mut (PrimitiveStore, Unifier)) -> BuiltinInfo {
// if diff > 0 and step > 0:
// return ((diff - 1) // step) + 1
// elif diff < 0 and step < 0:
// return ((diff + 1) // step) + 1
// return ((diff + 1) // step) + 1
// else:
// return 0
pub fn calculate_len_for_slice_range<'ctx, 'a>(
@ -638,11 +643,11 @@ pub fn calculate_len_for_slice_range<'ctx, 'a>(
let end = ctx.builder.build_int_s_extend(end, int32, "end");
let step = ctx.builder.build_int_s_extend(step, int32, "step");
let diff = ctx.builder.build_int_sub(end, start, "diff");
let diff_pos = ctx.builder.build_int_compare(SGT, diff, int32.const_zero(), "diffpos");
let step_pos = ctx.builder.build_int_compare(SGT, step, int32.const_zero(), "steppos");
let test_1 = ctx.builder.build_and(diff_pos, step_pos, "bothpos");
let current = ctx.builder.get_insert_block().unwrap().get_parent().unwrap();
let then_bb = ctx.ctx.append_basic_block(current, "then");
let else_bb = ctx.ctx.append_basic_block(current, "else");
@ -651,7 +656,7 @@ pub fn calculate_len_for_slice_range<'ctx, 'a>(
let cont_bb_2 = ctx.ctx.append_basic_block(current, "cont_2");
let cont_bb = ctx.ctx.append_basic_block(current, "cont");
ctx.builder.build_conditional_branch(test_1, then_bb, else_bb);
ctx.builder.position_at_end(then_bb);
let length_pos = {
let diff_pos_min_1 = ctx.builder.build_int_sub(diff, int32.const_int(1, false), "diffminone");
@ -659,15 +664,15 @@ pub fn calculate_len_for_slice_range<'ctx, 'a>(
ctx.builder.build_int_add(length_pos, int32.const_int(1, false), "add1")
};
ctx.builder.build_unconditional_branch(cont_bb);
ctx.builder.position_at_end(else_bb);
let phi_1 = {
let diff_neg = ctx.builder.build_int_compare(SLT, diff, int32.const_zero(), "diffneg");
let step_neg = ctx.builder.build_int_compare(SLT, step, int32.const_zero(), "stepneg");
let test_2 = ctx.builder.build_and(diff_neg, step_neg, "bothneg");
ctx.builder.build_conditional_branch(test_2, then_bb_2, else_bb_2);
ctx.builder.position_at_end(then_bb_2);
let length_neg = {
let diff_neg_add_1 = ctx.builder.build_int_add(diff, int32.const_int(1, false), "diffminone");
@ -675,18 +680,18 @@ pub fn calculate_len_for_slice_range<'ctx, 'a>(
ctx.builder.build_int_add(length_neg, int32.const_int(1, false), "add1")
};
ctx.builder.build_unconditional_branch(cont_bb_2);
ctx.builder.position_at_end(else_bb_2);
let length_zero = int32.const_zero();
ctx.builder.build_unconditional_branch(cont_bb_2);
ctx.builder.position_at_end(cont_bb_2);
let phi_1 = ctx.builder.build_phi(int32, "lenphi1");
phi_1.add_incoming(&[(&length_neg, then_bb_2), (&length_zero, else_bb_2)]);
phi_1.as_basic_value().into_int_value()
};
ctx.builder.build_unconditional_branch(cont_bb);
ctx.builder.position_at_end(cont_bb);
let phi = ctx.builder.build_phi(int32, "lenphi");
phi.add_incoming(&[(&length_pos, then_bb), (&phi_1, cont_bb_2)]);