[lldb][test][FreeBSD] Narrow vectorcall xfail to x86 platforms

[DavidSpickett]

This relates to #56084.

vectorcall only works on x86 https://clang.llvm.org/docs/AttributeReference.html#vectorcall so elsewhere it fails to compile. Which is expected on AArch64 for example so is treated as a pass.

[llvmbot]

@llvm/pr-subscribers-lldb

Author: David Spickett (DavidSpickett)

Changes

vectorcall only works on x86 https://clang.llvm.org/docs/AttributeReference.html#vectorcall so elsewhere it fails to compile. Which is expected on AArch64 for example so is treated as a pass.

---

Full diff: https://github.com/llvm/llvm-project/pull/84024.diff

1 Files Affected:

• (modified) lldb/test/API/lang/c/calling-conventions/TestCCallingConventions.py (+3)

diff --git a/lldb/test/API/lang/c/calling-conventions/TestCCallingConventions.py b/lldb/test/API/lang/c/calling-conventions/TestCCallingConventions.py
index 9483dfcd040186..0304482e899b82 100644
--- a/lldb/test/API/lang/c/calling-conventions/TestCCallingConventions.py
+++ b/lldb/test/API/lang/c/calling-conventions/TestCCallingConventions.py
@@ -62,7 +62,10 @@ def test_stdcall(self):
             return
         self.expect_expr("func(1, 2, 3, 4)", result_type="int", result_value="10")
 
+    # Fails on x86, passes elsewhere because clang doesn't support vectorcall on
+    # any other architectures.
     @expectedFailureAll(
+        triple=re.compile("^(x86|i386)"),
         oslist=["freebsd"], bugnumber="github.com/llvm/llvm-project/issues/56084"
     )
     def test_vectorcall(self):