Commit 29b3be4f2f30f756ef0317f79c349f5565b04d19 | zig

Fix intToFloat on comptime_floats

2 files changed, 16 insertions(+), 5 deletions(-)

src/ir.cpp+7-5

...	...	@@ -12760,9 +12760,7 @@ static bool eval_const_expr_implicit_cast(IrAnalyze ira, IrInst source_instr,
12760	12760	const_val->type = new_type;
12761	12761	break;
12762	12762	case CastOpIntToFloat:
12763		{
12764		assert(new_type->id == ZigTypeIdFloat);
12765
	12763	if (new_type->id == ZigTypeIdFloat) {
12766	12764	BigFloat bigfloat;
12767	12765	bigfloat_init_bigint(&bigfloat, &other_val->data.x_bigint);
12768	12766	switch (new_type->data.floating.bit_count) {
...	...	@@ -12783,9 +12781,13 @@ static bool eval_const_expr_implicit_cast(IrAnalyze ira, IrInst source_instr,
12783	12781	default:
12784	12782	zig_unreachable();
12785	12783	}
12786		const_val->special = ConstValSpecialStatic;
12787		break;
	12784	} else if (new_type->id == ZigTypeIdComptimeFloat) {
	12785	bigfloat_init_bigint(&const_val->data.x_bigfloat, &other_val->data.x_bigint);
	12786	} else {
	12787	zig_unreachable();
12788	12788	}
	12789	const_val->special = ConstValSpecialStatic;
	12790	break;
12789	12791	case CastOpFloatToInt:
12790	12792	float_init_bigint(&const_val->data.x_bigint, other_val);
12791	12793	if (new_type->id == ZigTypeIdInt) {

test/stage1/behavior/cast.zig+9

...	...	@@ -827,3 +827,12 @@ test "peer type resolve array pointer and unknown pointer" {
827	827	comptime expect(@TypeOf(&const_array, const_ptr) == [*]const u8);
828	828	comptime expect(@TypeOf(const_ptr, &const_array) == [*]const u8);
829	829	}
	830
	831	test "comptime float casts" {
	832	const a = @intToFloat(comptime_float, 1);
	833	expect(a == 1);
	834	expect(@TypeOf(a) == comptime_float);
	835	const b = @floatToInt(comptime_int, 2);
	836	expect(b == 2);
	837	expect(@TypeOf(b) == comptime_int);
	838	}