diff --git a/src/Sema.zig b/src/Sema.zig index a33c9bee6d..61b6209a3e 100644 --- a/src/Sema.zig +++ b/src/Sema.zig @@ -2538,6 +2538,20 @@ fn coerceResultPtr( const trash_inst = trash_block.instructions.pop(); switch (air_tags[trash_inst]) { + // Array coerced to Vector where element size is not equal but coercible. + .aggregate_init => { + const ty_pl = air_datas[trash_inst].ty_pl; + const ptr_operand_ty = try Type.ptr(sema.arena, sema.mod, .{ + .pointee_type = try sema.analyzeAsType(block, src, ty_pl.ty), + .@"addrspace" = addr_space, + }); + + if (try sema.resolveDefinedValue(block, src, new_ptr)) |ptr_val| { + return sema.addConstant(ptr_operand_ty, ptr_val); + } else { + return sema.bitCast(block, ptr_operand_ty, new_ptr, src, null); + } + }, .bitcast => { const ty_op = air_datas[trash_inst].ty_op; const operand_ty = sema.typeOf(ty_op.operand); diff --git a/test/behavior/vector.zig b/test/behavior/vector.zig index 2c7be227c4..b1c0e310fe 100644 --- a/test/behavior/vector.zig +++ b/test/behavior/vector.zig @@ -175,6 +175,25 @@ test "array to vector" { comptime try S.doTheTest(); } +test "array to vector with element type coercion" { + if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO + if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO + if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO + if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO + if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO + + const S = struct { + fn doTheTest() !void { + var foo: f16 = 3.14; + var arr32 = [4]f32{ foo, 1.5, 0.0, 0.0 }; + var vec: @Vector(4, f32) = [4]f16{ foo, 1.5, 0.0, 0.0 }; + try std.testing.expect(std.mem.eql(f32, &@as([4]f32, vec), &arr32)); + } + }; + try S.doTheTest(); + comptime try S.doTheTest(); +} + test "peer type resolution with coercible element types" { if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO