| author |  rpkak <rpkak@noreply.codeberg.org> 2026-01-20 18:02:15+01:00 |
| committer | rpkak <rpkak@noreply.codeberg.org> 2026-01-20 18:02:15+01:00 |
| log | e6ac1b77f0b958f8cefc6e357620f9fdef2c0eed |
| tree | 5c240418d4f132330b555247150b847e74ba7caa |
| parent | c857fce05bb8f0fd8053a5f15825704fb6506fd4 |
| signature |  Signed by SSH key SHA256:A2g6ATENrgLKQcUdthsn72P0njmQxnHSimzwnyJsZzo |
libzigc: test and fix acos
4 files changed, 3 insertions(+), 22 deletions(-)
lib/libc/musl/src/math/i386/acos.s deleted-18
| ... | @@ -1,18 +0,0 @@ | ||
| 1 | # use acos(x) = atan2(fabs(sqrt((1-x)*(1+x))), x) | ||
| 2 | |||
| 3 | .global acos | ||
| 4 | .type acos,@function | ||
| 5 | acos: | ||
| 6 | fldl 4(%esp) | ||
| 7 | fld %st(0) | ||
| 8 | fld1 | ||
| 9 | fsub %st(0),%st(1) | ||
| 10 | fadd %st(2) | ||
| 11 | fmulp | ||
| 12 | fsqrt | ||
| 13 | fabs # fix sign of zero (matters in downward rounding mode) | ||
| 14 | fxch %st(1) | ||
| 15 | fpatan | ||
| 16 | fstpl 4(%esp) | ||
| 17 | fldl 4(%esp) | ||
| 18 | ret | ||
lib/std/math/acos.zig+2-2
| ... | @@ -48,7 +48,7 @@ fn acos32(x: f32) f32 { | ... | @@ -48,7 +48,7 @@ fn acos32(x: f32) f32 { |
| 48 | return 0.0; | 48 | return 0.0; |
| 49 | } | 49 | } |
| 50 | } else { | 50 | } else { |
| 51 | return math.nan(f32); | 51 | return (x - x) / 0; |
| 52 | } | 52 | } |
| 53 | } | 53 | } |
| 54 | 54 | ||
| ... | @@ -117,7 +117,7 @@ fn acos64(x: f64) f64 { | ... | @@ -117,7 +117,7 @@ fn acos64(x: f64) f64 { |
| 117 | } | 117 | } |
| 118 | } | 118 | } |
| 119 | 119 | ||
| 120 | return math.nan(f64); | 120 | return (x - x) / 0; |
| 121 | } | 121 | } |
| 122 | 122 | ||
| 123 | // |x| < 0.5 | 123 | // |x| < 0.5 |
src/libs/musl.zig-1
| ... | @@ -890,7 +890,6 @@ const src_files = [_][]const u8{ | ... | @@ -890,7 +890,6 @@ const src_files = [_][]const u8{ |
| 890 | "musl/src/math/hypotl.c", | 890 | "musl/src/math/hypotl.c", |
| 891 | "musl/src/math/i386/acosf.s", | 891 | "musl/src/math/i386/acosf.s", |
| 892 | "musl/src/math/i386/acosl.s", | 892 | "musl/src/math/i386/acosl.s", |
| 893 | "musl/src/math/i386/acos.s", | ||
| 894 | "musl/src/math/i386/asinf.s", | 893 | "musl/src/math/i386/asinf.s", |
| 895 | "musl/src/math/i386/asinl.s", | 894 | "musl/src/math/i386/asinl.s", |
| 896 | "musl/src/math/i386/asin.s", | 895 | "musl/src/math/i386/asin.s", |
test/libc.zig+1-1
| ... | @@ -138,7 +138,7 @@ pub fn addCases(cases: *tests.LibcContext) void { | ... | @@ -138,7 +138,7 @@ pub fn addCases(cases: *tests.LibcContext) void { |
| 138 | cases.addLibcTestCase("regression/wcsncpy-read-overflow.c", true, .{}); | 138 | cases.addLibcTestCase("regression/wcsncpy-read-overflow.c", true, .{}); |
| 139 | cases.addLibcTestCase("regression/wcsstr-false-negative.c", true, .{}); | 139 | cases.addLibcTestCase("regression/wcsstr-false-negative.c", true, .{}); |
| 140 | 140 | ||
| 141 | // cases.addLibcTestCase("math/acos.c", true, .{}); | 141 | cases.addLibcTestCase("math/acos.c", true, .{}); |
| 142 | // cases.addLibcTestCase("math/acosf.c", true, .{}); | 142 | // cases.addLibcTestCase("math/acosf.c", true, .{}); |
| 143 | // cases.addLibcTestCase("math/acosh.c", true, .{}); | 143 | // cases.addLibcTestCase("math/acosh.c", true, .{}); |
| 144 | cases.addLibcTestCase("math/acoshf.c", true, .{}); | 144 | cases.addLibcTestCase("math/acoshf.c", true, .{}); |