[PATCH] D158329: [X86] Support arch=x86-64{,-v2,-v3,-v4} for target_clones attribute

[Freddy, Ye via Phabricator via cfe-commits]

FreddyYe added inline comments.


================
Comment at: clang/lib/CodeGen/CGBuiltin.cpp:13317
+      continue;
+    Value *Idxs[] = {Builder.getInt32(0), Builder.getInt32(i - 1)};
+    Value *Features = Builder.CreateAlignedLoad(
----------------
Don't quite understand why we need to change from a i32* into <4 x i32>* and the first element here to be always zero.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D158329/new/

https://reviews.llvm.org/D158329