[clang] [AArch64] Add option -msve-streaming-vector-bits= . (PR #144611)

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<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. 
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<details>
<summary>
You can test this locally with the following command:
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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions h,c,cpp -- 
clang/test/SemaCXX/aarch64-streaming-sve-vector-conversions.cpp 
clang/include/clang/AST/ASTContext.h clang/include/clang/Basic/TargetInfo.h 
clang/include/clang/Sema/SemaARM.h clang/lib/AST/ASTContext.cpp 
clang/lib/AST/ItaniumMangle.cpp clang/lib/Basic/Targets/AArch64.cpp 
clang/lib/Basic/Targets/AArch64.h clang/lib/Basic/Targets/RISCV.cpp 
clang/lib/Basic/Targets/RISCV.h clang/lib/CodeGen/CodeGenFunction.cpp 
clang/lib/CodeGen/Targets/RISCV.cpp clang/lib/Driver/ToolChains/Clang.cpp 
clang/lib/Frontend/CompilerInvocation.cpp clang/lib/Sema/Sema.cpp 
clang/lib/Sema/SemaARM.cpp clang/lib/Sema/SemaChecking.cpp 
clang/lib/Sema/SemaExpr.cpp clang/lib/Sema/SemaOverload.cpp 
clang/lib/Sema/SemaType.cpp 
clang/test/CodeGen/arm-sve-vector-bits-vscale-range.c 
clang/test/Driver/aarch64-sve-vector-bits.c 
clang/test/Sema/attr-arm-sve-vector-bits.c
``````````

</details>

<details>
<summary>
View the diff from clang-format here.
</summary>

``````````diff
diff --git a/clang/lib/Basic/Targets/AArch64.cpp 
b/clang/lib/Basic/Targets/AArch64.cpp
index b32a98a6f..041c5bc63 100644
--- a/clang/lib/Basic/Targets/AArch64.cpp
+++ b/clang/lib/Basic/Targets/AArch64.cpp
@@ -828,7 +828,8 @@ AArch64TargetInfo::getVScaleRange(const LangOptions 
&LangOpts,
   if (IsArmStreamingFunction == ArmStreamingKind::NotStreaming &&
       (LangOpts.VScaleMin || LangOpts.VScaleMax))
     return std::pair<unsigned, unsigned>(
-        LangOpts.VScaleMin ? LangOpts.VScaleMin : 1, LangOpts.VScaleMax ? 
LangOpts.VScaleMax : 16);
+        LangOpts.VScaleMin ? LangOpts.VScaleMin : 1,
+        LangOpts.VScaleMax ? LangOpts.VScaleMax : 16);
 
   if (IsArmStreamingFunction == ArmStreamingKind::Streaming &&
       (LangOpts.VScaleStreamingMin || LangOpts.VScaleStreamingMax))
@@ -839,10 +840,12 @@ AArch64TargetInfo::getVScaleRange(const LangOptions 
&LangOpts,
   if (IsArmStreamingFunction == ArmStreamingKind::StreamingCompatible &&
       ((LangOpts.VScaleMin && LangOpts.VScaleStreamingMin) ||
        (LangOpts.VScaleMax && LangOpts.VScaleStreamingMax))) {
-    unsigned Min = std::min(LangOpts.VScaleMin ? LangOpts.VScaleMin : 1,
-                            LangOpts.VScaleStreamingMin ? 
LangOpts.VScaleStreamingMin : 1);
-    unsigned Max = std::max(LangOpts.VScaleMax ? LangOpts.VScaleMax : 16,
-                            LangOpts.VScaleStreamingMax ? 
LangOpts.VScaleStreamingMax : 16);
+    unsigned Min =
+        std::min(LangOpts.VScaleMin ? LangOpts.VScaleMin : 1,
+                 LangOpts.VScaleStreamingMin ? LangOpts.VScaleStreamingMin : 
1);
+    unsigned Max = std::max(
+        LangOpts.VScaleMax ? LangOpts.VScaleMax : 16,
+        LangOpts.VScaleStreamingMax ? LangOpts.VScaleStreamingMax : 16);
     return std::pair(Min, Max);
   }
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/144611
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