authorgravatar for justin.b.alexander1@gmail.comvegecode <justin.b.alexander1@gmail.com> 2019-03-22 22:51:25-05:00
committergravatar for justin.b.alexander1@gmail.comvegecode <justin.b.alexander1@gmail.com> 2019-03-31 15:54:02-05:00
log779137be4111ba60c888ed86f33654e538a7a0ca
tree9f3a3538f9329bf3523e756b32450b28653ebdd6
parent38c2093500dcb7dac7cce6bbe08abe92767f24ba

Add __aeabi_{f,d}neg and __neg{s,d,X}f2 to compiler-rt

3 files changed, 28 insertions(+), 0 deletions(-)

CMakeLists.txt+1
......@@ -664,6 +664,7 @@ set(ZIG_STD_FILES
664664 "special/compiler_rt/muloti4.zig"
665665 "special/compiler_rt/mulXf3.zig"
666666 "special/compiler_rt/multi3.zig"
667 "special/compiler_rt/negXf2.zig"
667668 "special/compiler_rt/popcountdi2.zig"
668669 "special/compiler_rt/truncXfYf2.zig"
669670 "special/compiler_rt/udivmod.zig"
std/special/compiler_rt.zig+6
......@@ -82,6 +82,9 @@ comptime {
8282 @export("__umoddi3", __umoddi3, linkage);
8383 @export("__udivmodsi4", __udivmodsi4, linkage);
8484
85 @export("__negsf2", @import("compiler_rt/negXf2.zig").__negsf2, linkage);
86 @export("__negdf2", @import("compiler_rt/negXf2.zig").__negdf2, linkage);
87
8588 if (is_arm_arch and !is_arm_64) {
8689 @export("__aeabi_uldivmod", __aeabi_uldivmod, linkage);
8790 @export("__aeabi_uidivmod", __aeabi_uidivmod, linkage);
......@@ -107,6 +110,9 @@ comptime {
107110 @export("__aeabi_memcmp4", __aeabi_memcmp, linkage);
108111 @export("__aeabi_memcmp8", __aeabi_memcmp, linkage);
109112
113 @export("__aeabi_fneg", @import("compiler_rt/negXf2.zig").__negsf2, linkage);
114 @export("__aeabi_dneg", @import("compiler_rt/negXf2.zig").__negdf2, linkage);
115
110116 @export("__aeabi_fadd", @import("compiler_rt/addXf3.zig").__addsf3, linkage);
111117 @export("__aeabi_dadd", @import("compiler_rt/addXf3.zig").__adddf3, linkage);
112118 @export("__aeabi_fsub", @import("compiler_rt/addXf3.zig").__subsf3, linkage);
std/special/compiler_rt/negXf2.zig created+21
......@@ -0,0 +1,21 @@
1const std = @import("std");
2
3pub extern fn __negsf2(a: f32) f32 {
4 return negXf2(f32, a);
5}
6
7pub extern fn __negdf2(a: f64) f64 {
8 return negXf2(f64, a);
9}
10
11fn negXf2(comptime T: type, a: T) T {
12 const Z = @IntType(false, T.bit_count);
13
14 const typeWidth = T.bit_count;
15 const significandBits = std.math.floatMantissaBits(T);
16 const exponentBits = std.math.floatExponentBits(T);
17
18 const signBit = (Z(1) << (significandBits + exponentBits));
19
20 return @bitCast(T, @bitCast(Z, a) ^ signBit);
21}