[clang] [llvm] [PowerPC] Use the 16-byte stack and vector alignment on FreeBSD (PR #232336)

[Piotr Kubaj via cfe-commits]

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@@ -276,8 +276,9 @@ static std::string computePowerDataLayout(const Triple &T, StringRef ABIName) {
 
   // Specify the vector alignment explicitly. For v256i1 and v512i1, the
   // calculated alignment would be 256*alignment(i1) and 512*alignment(i1),
-  // which is 256 and 512 bytes - way over aligned.
-  if (is64Bit && (T.isOSAIX() || T.isOSLinux()))
+  // which is 256 and 512 bytes - way over aligned. FreeBSD uses the same ELFv2
+  // ABI as Linux, so it shares the stack and vector alignment.
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pkubaj wrote:

Reworded, comment fixed.

https://github.com/llvm/llvm-project/pull/232336