[lld] [llvm] [RISCV] Support RISCV Atomics ABI attributes (PR #84597)

[Alex Bradbury via llvm-commits]

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@@ -62,12 +62,21 @@
 # RUN: ld.lld atomic_abi_unknown.o atomic_abi_A6C.o -o atomic_abi_A6C_unknown
 # RUN: llvm-readobj -A atomic_abi_A6C_unknown | FileCheck %s --check-prefixes=UNKNOWN_A6C
 
+# RUN: ld.lld atomic_abi_unknown.o diff_stack_align.o -o atomic_abi_none_unknown
+# RUN: llvm-readobj -A atomic_abi_none_unknown | FileCheck %s --check-prefixes=UNKNOWN_UNKNOWN
+
+# RUN: ld.lld diff_stack_align.o atomic_abi_A6C.o -o atomic_abi_A6C_unknown
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asb wrote:

Shouldn't the output filename be atomic_abi_A6C_none?

https://github.com/llvm/llvm-project/pull/84597