680419c407
Starting with LLVM 14, the Libcalls to these functions are now lowered using a Vec(2, u64) instead of the standard ABI for i128 integers, so our compiler-rt implementation needs to be updated to expose the same ABI on Windows.
27 lines
826 B
Zig
27 lines
826 B
Zig
const builtin = @import("builtin");
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const arch = builtin.cpu.arch;
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const common = @import("./common.zig");
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const intToFloat = @import("./int_to_float.zig").intToFloat;
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pub const panic = common.panic;
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comptime {
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const floattisf_fn = if (builtin.os.tag == .windows and arch == .x86_64) b: {
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// The "ti" functions must use Vector(2, u64) return types to adhere to the ABI
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// that LLVM expects compiler-rt to have.
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break :b __floattisf_windows_x86_64;
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} else __floattisf;
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@export(floattisf_fn, .{ .name = "__floattisf", .linkage = common.linkage });
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}
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pub fn __floattisf(a: i128) callconv(.C) f32 {
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return intToFloat(f32, a);
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}
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const v128 = @import("std").meta.Vector(2, u64);
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fn __floattisf_windows_x86_64(a: v128) callconv(.C) f32 {
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return intToFloat(f32, @bitCast(i128, a));
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}
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