diff --git a/compiler/rustc_codegen_cranelift/patches/0029-sysroot_tests-disable-f16-math.patch b/compiler/rustc_codegen_cranelift/patches/0029-sysroot_tests-disable-f16-math.patch
deleted file mode 100644
index 8d21359aa0043..0000000000000
--- a/compiler/rustc_codegen_cranelift/patches/0029-sysroot_tests-disable-f16-math.patch
+++ /dev/null
@@ -1,582 +0,0 @@
-From 285d5716fcfa6d43a3516d899b73bc85da322c25 Mon Sep 17 00:00:00 2001
-From: xonx <119700621+xonx4l@users.noreply.github.com>
-Date: Sun, 15 Feb 2026 14:06:49 +0000
-Subject: [PATCH] Disable f16 math tests for cranelift
-
----
- coretests/tests/num/floats.rs | 26 +++++++++++++-------------
- 1 file changed, 13 insertions(+), 13 deletions(-)
-
-diff --git a/coretests/tests/num/floats.rs b/coretests/tests/num/floats.rs
-index 1d7956b..01e4caa 100644
---- a/coretests/tests/num/floats.rs
-+++ b/coretests/tests/num/floats.rs
-@@ -444,7 +444,7 @@ pub(crate) use float_test;
- float_test! {
-     name: num,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -463,7 +463,7 @@ float_test! {
-     name: num_rem,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -476,7 +476,7 @@ float_test! {
- float_test! {
-     name: nan,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -496,7 +496,7 @@ float_test! {
- float_test! {
-     name: infinity,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -514,7 +514,7 @@ float_test! {
- float_test! {
-     name: neg_infinity,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -532,7 +532,7 @@ float_test! {
- float_test! {
-     name: zero,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -550,7 +550,7 @@ float_test! {
- float_test! {
-     name: neg_zero,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -570,7 +570,7 @@ float_test! {
- float_test! {
-     name: one,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -588,7 +588,7 @@ float_test! {
- float_test! {
-     name: is_nan,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -609,7 +609,7 @@ float_test! {
- float_test! {
-     name: is_infinite,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -630,7 +630,7 @@ float_test! {
- float_test! {
-     name: is_finite,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -651,7 +651,7 @@ float_test! {
- float_test! {
-     name: is_normal,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -673,7 +673,7 @@ float_test! {
- float_test! {
-     name: classify,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-     },
-     test {
-         let nan: Float = Float::NAN;
-@@ -695,7 +695,7 @@ float_test! {
-     name: min,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -737,7 +737,7 @@ float_test! {
-     name: max,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -780,7 +780,7 @@ float_test! {
-     name: minimum,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -812,7 +812,7 @@ float_test! {
-     name: maximum,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -845,7 +845,7 @@ float_test! {
-     name: midpoint,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -898,7 +898,7 @@ float_test! {
-     attrs: {
-         const: #[cfg(false)],
-         // Needs powi
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -929,7 +929,7 @@ float_test! {
-     name: abs,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -948,7 +948,7 @@ float_test! {
-     name: copysign,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -964,7 +964,7 @@ float_test! {
-     attrs: {
-         const: #[cfg(false)],
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -982,7 +982,7 @@ float_test! {
-     attrs: {
-         const: #[cfg(false)],
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -998,7 +998,7 @@ float_test! {
-     name: floor,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -1028,7 +1028,7 @@ float_test! {
-     name: ceil,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -1058,7 +1058,7 @@ float_test! {
-     name: round,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -1089,7 +1089,7 @@ float_test! {
-     name: round_ties_even,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -1120,7 +1120,7 @@ float_test! {
-     name: trunc,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -1150,7 +1150,7 @@ float_test! {
-     name: fract,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -1182,7 +1182,7 @@ float_test! {
-     name: signum,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -1200,7 +1200,7 @@ float_test! {
- float_test! {
-     name: is_sign_positive,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -1219,7 +1219,7 @@ float_test! {
- float_test! {
-     name: is_sign_negative,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -1238,7 +1238,7 @@ float_test! {
- float_test! {
-     name: next_up,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -1269,7 +1269,7 @@ float_test! {
- float_test! {
-     name: next_down,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -1303,7 +1303,7 @@ float_test! {
-     attrs: {
-         const: #[cfg(false)],
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -1321,7 +1321,7 @@ float_test! {
-     name: clamp_min_greater_than_max,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[should_panic, cfg(target_has_reliable_f16)],
-+        f16: #[should_panic, cfg(false)],
-         f32: #[should_panic],
-         f64: #[should_panic],
-         f128: #[should_panic, cfg(target_has_reliable_f128)],
-@@ -1335,7 +1335,7 @@ float_test! {
-     name: clamp_min_is_nan,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[should_panic, cfg(target_has_reliable_f16)],
-+        f16: #[should_panic, cfg(false)],
-         f32: #[should_panic],
-         f64: #[should_panic],
-         f128: #[should_panic, cfg(target_has_reliable_f128)],
-@@ -1349,7 +1349,7 @@ float_test! {
-     name: clamp_max_is_nan,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[should_panic, cfg(target_has_reliable_f16)],
-+        f16: #[should_panic, cfg(false)],
-         f32: #[should_panic],
-         f64: #[should_panic],
-         f128: #[should_panic, cfg(target_has_reliable_f128)],
-@@ -1363,7 +1363,7 @@ float_test! {
-     name: total_cmp,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -1469,7 +1469,7 @@ float_test! {
-     attrs: {
-         const: #[cfg(false)],
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -1526,7 +1526,7 @@ float_test! {
-     name: recip,
-     attrs: {
-         // Miri only uses softfloats here, so that always works
--        f16: #[cfg(any(miri, target_has_reliable_f16_math))],
-+        f16: #[cfg(false)],
-         f128: #[cfg(any(miri, target_has_reliable_f128_math))],
-     },
-     test {
-@@ -1549,7 +1549,7 @@ float_test! {
-     name: powi,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -1570,7 +1570,7 @@ float_test! {
-     name: powf,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)], // FIXME(rust-lang/rustc_codegen_cranelift#1622)
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -1593,7 +1593,7 @@ float_test! {
-     name: exp,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)], // FIXME(rust-lang/rustc_codegen_cranelift#1622)
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -1614,7 +1614,7 @@ float_test! {
-     name: exp2,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)], // FIXME(rust-lang/rustc_codegen_cranelift#1622)
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -1634,7 +1634,7 @@ float_test! {
-     name: ln,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)], // FIXME(rust-lang/rustc_codegen_cranelift#1622)
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -1656,7 +1656,7 @@ float_test! {
-     name: log,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)], // FIXME(rust-lang/rustc_codegen_cranelift#1622)
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -1681,7 +1681,7 @@ float_test! {
-     name: log2,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)], // FIXME(rust-lang/rustc_codegen_cranelift#1622)
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -1704,7 +1704,7 @@ float_test! {
-     name: log10,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)], // FIXME(rust-lang/rustc_codegen_cranelift#1622)
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -1728,7 +1728,7 @@ float_test! {
-     name: asinh,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)], // FIXME(rust-lang/rustc_codegen_cranelift#1622)
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -1764,7 +1764,7 @@ float_test! {
-     name: acosh,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)], // FIXME(rust-lang/rustc_codegen_cranelift#1622)
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -1795,7 +1795,7 @@ float_test! {
-     name: atanh,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)], // FIXME(rust-lang/rustc_codegen_cranelift#1622)
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -1821,7 +1821,7 @@ float_test! {
-     name: gamma,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)], // FIXME(rust-lang/rustc_codegen_cranelift#1622)
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -1856,7 +1856,7 @@ float_test! {
-     name: ln_gamma,
-     attrs: {
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)], // FIXME(rust-lang/rustc_codegen_cranelift#1622)
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
-@@ -1874,7 +1874,7 @@ float_test! {
- float_test! {
-     name: to_degrees,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -1895,7 +1895,7 @@ float_test! {
- float_test! {
-     name: to_radians,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -1916,7 +1916,7 @@ float_test! {
- float_test! {
-     name: to_algebraic,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -1940,7 +1940,7 @@ float_test! {
- float_test! {
-     name: to_bits_conv,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -1967,7 +1967,7 @@ float_test! {
- float_test! {
-     name: mul_add,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         // FIXME(#140515): mingw has an incorrect fma https://sourceforge.net/p/mingw-w64/bugs/848/
-         f32: #[cfg_attr(all(target_os = "windows", target_env = "gnu", not(target_abi = "llvm")), ignore)],
-         f64: #[cfg_attr(all(target_os = "windows", target_env = "gnu", not(target_abi = "llvm")), ignore)],
-@@ -1992,7 +1992,7 @@ float_test! {
- float_test! {
-     name: from,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -2049,7 +2049,7 @@ float_test! {
- float_test! {
-     name: max_exact_integer_constant,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -2091,7 +2091,7 @@ float_test! {
- float_test! {
-     name: min_exact_integer_constant,
-     attrs: {
--        f16: #[cfg(target_has_reliable_f16)],
-+        f16: #[cfg(false)],
-         f128: #[cfg(target_has_reliable_f128)],
-     },
-     test {
-@@ -2156,7 +2156,7 @@ float_test! {
-     attrs: {
-         // FIXME(f16_f128): add math tests when available
-         const: #[cfg(false)],
--        f16: #[cfg(target_has_reliable_f16_math)],
-+        f16: #[cfg(false)], // FIXME(rust-lang/rustc_codegen_cranelift#1622)
-         f128: #[cfg(target_has_reliable_f128_math)],
-     },
-     test {
---
-2.50.1
diff --git a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs b/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs
index d4bb8bd019331..0598e6909ce2e 100644
--- a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs
+++ b/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs
@@ -314,11 +314,11 @@ fn codegen_float_intrinsic_call<'tcx>(
     ret: CPlace<'tcx>,
 ) -> bool {
     let (name, arg_count, ty, clif_ty) = match intrinsic {
-        sym::expf16 => ("expf16", 1, fx.tcx.types.f16, types::F16),
+        sym::expf16 => return false, // has a fallback via f32
         sym::expf32 => ("expf", 1, fx.tcx.types.f32, types::F32),
         sym::expf64 => ("exp", 1, fx.tcx.types.f64, types::F64),
         sym::expf128 => ("expf128", 1, fx.tcx.types.f128, types::F128),
-        sym::exp2f16 => ("exp2f16", 1, fx.tcx.types.f16, types::F16),
+        sym::exp2f16 => return false, // has a fallback via f32
         sym::exp2f32 => ("exp2f", 1, fx.tcx.types.f32, types::F32),
         sym::exp2f64 => ("exp2", 1, fx.tcx.types.f64, types::F64),
         sym::exp2f128 => ("exp2f128", 1, fx.tcx.types.f128, types::F128),
@@ -330,19 +330,20 @@ fn codegen_float_intrinsic_call<'tcx>(
         sym::powif32 => ("__powisf2", 2, fx.tcx.types.f32, types::F32), // compiler-builtins
         sym::powif64 => ("__powidf2", 2, fx.tcx.types.f64, types::F64), // compiler-builtins
         sym::powif128 => ("__powitf2", 2, fx.tcx.types.f128, types::F128), // compiler-builtins
-        sym::powf16 => ("powf16", 2, fx.tcx.types.f16, types::F16),
+
+        sym::powf16 => return false, // has a fallback via f32
         sym::powf32 => ("powf", 2, fx.tcx.types.f32, types::F32),
         sym::powf64 => ("pow", 2, fx.tcx.types.f64, types::F64),
         sym::powf128 => ("powf128", 2, fx.tcx.types.f128, types::F128),
-        sym::logf16 => ("logf16", 1, fx.tcx.types.f16, types::F16),
+        sym::logf16 => return false, // has a fallback via f32
         sym::logf32 => ("logf", 1, fx.tcx.types.f32, types::F32),
         sym::logf64 => ("log", 1, fx.tcx.types.f64, types::F64),
         sym::logf128 => ("logf128", 1, fx.tcx.types.f128, types::F128),
-        sym::log2f16 => ("log2f16", 1, fx.tcx.types.f16, types::F16),
+        sym::log2f16 => return false, // has a fallback via f32
         sym::log2f32 => ("log2f", 1, fx.tcx.types.f32, types::F32),
         sym::log2f64 => ("log2", 1, fx.tcx.types.f64, types::F64),
         sym::log2f128 => ("log2f128", 1, fx.tcx.types.f128, types::F128),
-        sym::log10f16 => ("log10f16", 1, fx.tcx.types.f16, types::F16),
+        sym::log10f16 => return false, // has a fallback via f32
         sym::log10f32 => ("log10f", 1, fx.tcx.types.f32, types::F32),
         sym::log10f64 => ("log10", 1, fx.tcx.types.f64, types::F64),
         sym::log10f128 => ("log10f128", 1, fx.tcx.types.f128, types::F128),