[llvm] [clang] [AArch64] Support optional constant offset for constraint "S" (PR #80255)

[Fangrui Song via cfe-commits]

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@@ -3,6 +3,7 @@
 ; RUN: llc -mtriple=riscv64 < %s | FileCheck %s --check-prefix=RV64
 
 @var = external dso_local global i32, align 4
+ at a = external global [2 x [2 x i32]], align 4
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MaskRay wrote:

Sorry, no. I accidentally included this when preparing tests using my experience on x86 Ws and RISC-V S:)

https://github.com/llvm/llvm-project/pull/80255