================
@@ -192,8 +192,11 @@ void RISCVTargetInfo::getTargetDefines(const LangOptions
&Opts,
Builder.defineMacro("__riscv_muldiv");
}
- if (ISAInfo->hasExtension("a")) {
+ // The "a" extension is composed of "zalrsc" and "zaamo"
+ if (ISAInfo->hasExtension("a"))
Builder.defineMacro("__riscv_atomic");
+
+ if (ISAInfo->hasExtension("zalrsc")) {
----------------
slachowsky wrote:
done, this is checked in a separate preproc test called `riscv-atomics.c`
https://github.com/llvm/llvm-project/pull/163672
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