Revert "Reduce the number of attributes attached to each function"

This reverts commit 053dc95. It causes perf regressions - see discussion in D97116.
llvm · Apr 8, 2021 · 2cb8c10 · 2cb8c10
1 parent 466fab5
commit 2cb8c10
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Showing 7 changed files with 6,083 additions and 6,770 deletions.
diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp
@@ -493,8 +493,7 @@ void CodeGenFunction::FinishFunction(SourceLocation EndLoc) {
   // 4. Width of vector arguments and return types for this function.
   // 5. Width of vector aguments and return types for functions called by this
   //    function.
-  if (LargestVectorWidth)
-    CurFn->addFnAttr("min-legal-vector-width", llvm::utostr(LargestVectorWidth));
+  CurFn->addFnAttr("min-legal-vector-width", llvm::utostr(LargestVectorWidth));
 
   // Add vscale attribute if appropriate.
   if (getLangOpts().ArmSveVectorBits) {

diff --git a/clang/test/CodeGen/aarch64-neon-ldst-one.c b/clang/test/CodeGen/aarch64-neon-ldst-one.c
diff --git a/clang/test/CodeGen/aarch64-neon-scalar-x-indexed-elem.c b/clang/test/CodeGen/aarch64-neon-scalar-x-indexed-elem.c