refine tests

Author: tgross35

testcrate/build.rs

@@ -22,9 +22,10 @@ fn main() {
         // GCC and LLVM disagree on the ABI of `f16` and `f128` with MinGW. See
         // <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115054>.
         || target.contains("windows-gnu")
-        // // FIXME(llvm): There is an ABI incompatibility between GCC and Clang on 32-bit x86.
-        // // See <https://github.com/llvm/llvm-project/issues/77401>.
-        // || target.starts_with("i686")
+        // FIXME(llvm): There is an ABI incompatibility between GCC and Clang on 32-bit x86.
+        // See <https://github.com/llvm/llvm-project/issues/77401>.
+        || target.starts_with("i586")
+        || target.starts_with("i686")
         // 32-bit PowerPC and 64-bit LE gets code generated that Qemu cannot handle. See
         // <https://github.com/rust-lang/compiler-builtins/pull/606#issuecomment-2105635926>.
         || target.starts_with("powerpc-")