authorgravatar for alichraghi@proton.meAli Chraghi <alichraghi@proton.me> 2023-05-15 22:04:42+03:30
committergravatar for alichraghi@proton.meAli Chraghi <alichraghi@proton.me> 2023-05-15 22:04:42+03:30
log6fca3f8b72397d62dd7b2d2e07db843c88428ac3
treeb7d5163be18eb039ddd9f008ab2256748af63cbe
parentf8de4db8731e20995d16ec29bc0fb553e7d6f5bf

spirv: lower ptrtoint & ignore dbg_inline instructions

2 files changed, 23 insertions(+), 8 deletions(-)

src/codegen/spirv.zig+23-4
......@@ -1724,6 +1724,7 @@ pub const DeclGen = struct {
17241724
17251725 .bitcast => try self.airBitcast(inst),
17261726 .intcast, .trunc => try self.airIntcast(inst),
1727 .ptrtoint => try self.airPtrToInt(inst),
17271728 .int_to_float => try self.airIntToFloat(inst),
17281729 .float_to_int => try self.airFloatToInt(inst),
17291730 .not => try self.airNot(inst),
......@@ -1786,10 +1787,12 @@ pub const DeclGen = struct {
17861787 .call_never_tail => try self.airCall(inst, .never_tail),
17871788 .call_never_inline => try self.airCall(inst, .never_inline),
17881789
1789 .dbg_var_ptr => return,
1790 .dbg_var_val => return,
1791 .dbg_block_begin => return,
1792 .dbg_block_end => return,
1790 .dbg_inline_begin => return,
1791 .dbg_inline_end => return,
1792 .dbg_var_ptr => return,
1793 .dbg_var_val => return,
1794 .dbg_block_begin => return,
1795 .dbg_block_end => return,
17931796 // zig fmt: on
17941797
17951798 else => |tag| return self.todo("implement AIR tag {s}", .{@tagName(tag)}),
......@@ -2131,6 +2134,22 @@ pub const DeclGen = struct {
21312134 return result_id;
21322135 }
21332136
2137 fn airPtrToInt(self: *DeclGen, inst: Air.Inst.Index) !?IdRef {
2138 if (self.liveness.isUnused(inst)) return null;
2139
2140 const un_op = self.air.instructions.items(.data)[inst].un_op;
2141 const operand_id = try self.resolve(un_op);
2142 const result_type_id = try self.resolveTypeId(Type.usize);
2143
2144 const result_id = self.spv.allocId();
2145 try self.func.body.emit(self.spv.gpa, .OpConvertPtrToU, .{
2146 .id_result_type = result_type_id,
2147 .id_result = result_id,
2148 .pointer = operand_id,
2149 });
2150 return result_id;
2151 }
2152
21342153 fn airIntToFloat(self: *DeclGen, inst: Air.Inst.Index) !?IdRef {
21352154 if (self.liveness.isUnused(inst)) return null;
21362155
test/behavior/cast.zig-4
......@@ -1285,14 +1285,10 @@ test "implicit cast *[0]T to E![]const u8" {
12851285
12861286var global_array: [4]u8 = undefined;
12871287test "cast from array reference to fn: comptime fn ptr" {
1288 if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
1289
12901288 const f = @ptrCast(*align(1) const fn () callconv(.C) void, &global_array);
12911289 try expect(@ptrToInt(f) == @ptrToInt(&global_array));
12921290}
12931291test "cast from array reference to fn: runtime fn ptr" {
1294 if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
1295
12961292 var f = @ptrCast(*align(1) const fn () callconv(.C) void, &global_array);
12971293 try expect(@ptrToInt(f) == @ptrToInt(&global_array));
12981294}