[clang] [CIR][AArch64] Upstream store (vst1_*/vst1q_*) NEON builtins (PR #209347)

[Andrzej Warzyński via cfe-commits]

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@@ -0,0 +1,1636 @@
+// REQUIRES: aarch64-registered-target || arm-registered-target
+
+// RUN:                   %clang_cc1_cg_arm64_neon           -emit-llvm %s -disable-O0-optnone | opt -S -passes=mem2reg,sroa,instcombine | FileCheck %s --check-prefix=LLVM
+// RUN: %if cir-enabled %{%clang_cc1_cg_arm64_neon -fclangir -emit-llvm %s -disable-O0-optnone | opt -S -passes=mem2reg,sroa,instcombine,simplifycfg | FileCheck %s --check-prefix=LLVM %}
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banach-space wrote:

Do we need both `instcombine` and `simplifycfg`? We should only use what's absolutely necessary, but no more :)

Could you align lines 3 and 4 so that `FileCheck` are exactly one above the other - nice formatting makes it super easy to see the difference between `RUN` lines. That's very handy :)

https://github.com/llvm/llvm-project/pull/209347