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Replace many foreign llvm calls with intrinsics

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This commit is contained in:
gingerBill
2021-04-25 20:22:26 +01:00
parent cb2e6ea31d
commit 72aa0e6e38
12 changed files with 78 additions and 247 deletions
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core/runtime/internal_linux.odin
+3 -7
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@@ -1,5 +1,7 @@
package runtime
import "intrinsics"
@(link_name="__umodti3")
umodti3 :: proc "c" (a, b: u128) -> u128 {
r: u128 = ---;
@@ -86,12 +88,6 @@ fixdfti :: proc(a: u64) -> i128 {
}
@(default_calling_convention = "none")
foreign {
@(link_name="llvm.ctlz.i128") _clz_i128 :: proc(x: i128, is_zero_undef := false) -> i128 ---
}
@(link_name="__floattidf")
floattidf :: proc(a: i128) -> f64 {
DBL_MANT_DIG :: 53;
@@ -102,7 +98,7 @@ floattidf :: proc(a: i128) -> f64 {
N :: size_of(i128) * 8;
s := a >> (N-1);
a = (a ~ s) - s;
sd: = N - _clz_i128(a); // number of significant digits
sd: = N - intrinsics.leading_zeros(a); // number of significant digits
e := u32(sd - 1); // exponent
if sd > DBL_MANT_DIG {
switch sd {