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37 lines
1.5 KiB
Zig
37 lines
1.5 KiB
Zig
///! The quoted behavior definitions are from
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///! https://gcc.gnu.org/onlinedocs/gcc-12.1.0/gccint/Soft-float-library-routines.html#Soft-float-library-routines
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const common = @import("./common.zig");
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const comparef = @import("./comparef.zig");
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pub const panic = common.panic;
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comptime {
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if (common.want_aeabi) {
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@export(__aeabi_dcmpge, .{ .name = "__aeabi_dcmpge", .linkage = common.linkage, .visibility = common.visibility });
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@export(__aeabi_dcmpgt, .{ .name = "__aeabi_dcmpgt", .linkage = common.linkage, .visibility = common.visibility });
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} else {
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@export(__gedf2, .{ .name = "__gedf2", .linkage = common.linkage, .visibility = common.visibility });
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@export(__gtdf2, .{ .name = "__gtdf2", .linkage = common.linkage, .visibility = common.visibility });
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}
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}
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/// "These functions return a value greater than or equal to zero if neither
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/// argument is NaN, and a is greater than or equal to b."
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pub fn __gedf2(a: f64, b: f64) callconv(.C) i32 {
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return @intFromEnum(comparef.cmpf2(f64, comparef.GE, a, b));
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}
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/// "These functions return a value greater than zero if neither argument is NaN,
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/// and a is strictly greater than b."
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pub fn __gtdf2(a: f64, b: f64) callconv(.C) i32 {
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return __gedf2(a, b);
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}
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fn __aeabi_dcmpge(a: f64, b: f64) callconv(.AAPCS) i32 {
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return @intFromBool(comparef.cmpf2(f64, comparef.GE, a, b) != .Less);
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}
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fn __aeabi_dcmpgt(a: f64, b: f64) callconv(.AAPCS) i32 {
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return @intFromBool(comparef.cmpf2(f64, comparef.GE, a, b) == .Greater);
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}
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