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x86_64: fix emitting f80 globals

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This commit is contained in:
Jacob Young 2023-04-28 01:56:45 -04:00
parent 1fd48815c6
commit db76ae8260
3 changed files with 8 additions and 16 deletions
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22
src/codegen.zig
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@ -91,12 +91,10 @@ pub fn generateFunction(
fn writeFloat(comptime F: type, f: F, target: Target, endian: std.builtin.Endian, code: []u8) void {
_ = target;
const Int = @Type(.{ .Int = .{
.signedness = .unsigned,
.bits = @typeInfo(F).Float.bits,
} });
const bits = @typeInfo(F).Float.bits;
const Int = @Type(.{ .Int = .{ .signedness = .unsigned, .bits = bits } });
const int = @bitCast(Int, f);
mem.writeInt(Int, code[0..@sizeOf(Int)], int, endian);
mem.writeInt(Int, code[0..@divExact(bits, 8)], int, endian);
}
pub fn generateLazySymbol(
@ -187,18 +185,14 @@ pub fn generateSymbol(
};
},
.Float => {
const float_bits = typed_value.ty.floatBits(target);
switch (float_bits) {
switch (typed_value.ty.floatBits(target)) {
16 => writeFloat(f16, typed_value.val.toFloat(f16), target, endian, try code.addManyAsArray(2)),
32 => writeFloat(f32, typed_value.val.toFloat(f32), target, endian, try code.addManyAsArray(4)),
64 => writeFloat(f64, typed_value.val.toFloat(f64), target, endian, try code.addManyAsArray(8)),
80 => return Result{
.fail = try ErrorMsg.create(
bin_file.allocator,
src_loc,
"TODO handle f80 in generateSymbol",
.{},
),
80 => {
writeFloat(f80, typed_value.val.toFloat(f80), target, endian, try code.addManyAsArray(10));
const abi_size = math.cast(usize, typed_value.ty.abiSize(target)) orelse return error.Overflow;
try code.appendNTimes(0, abi_size - 10);
},
128 => writeFloat(f128, typed_value.val.toFloat(f128), target, endian, try code.addManyAsArray(16)),
else => unreachable,

1
test/behavior/floatop.zig
View File

@ -1023,7 +1023,6 @@ test "comptime fixed-width float zero divided by zero produces NaN" {
test "comptime fixed-width float non-zero divided by zero produces signed Inf" {
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_arm) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO

1
test/behavior/math.zig
View File

@ -1535,7 +1535,6 @@ test "signed zeros are represented properly" {
if (builtin.zig_backend == .stage2_wasm) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_x86_64) return error.SkipZigTest; // TODO
if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
const S = struct {