================ @@ -14389,6 +14389,36 @@ Semantics: Note this intrinsic is only verified on AArch64 and ARM. +'``llvm.stackaddress``' Intrinsic +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +Syntax: +""""""" + +:: + + declare ptr @llvm.stackaddress() + +Overview: +""""""""" + +The '``llvm.stackaddress``' instrinsic returns the starting address of the stack region that may be +used by called functions. + +Semantics: +"""""""""" + +This intrinsic returns the *logical* value of the stack pointer register, that is, the address +separating the stack space of the current function from the stack space that may be modified by +called functions. + +On certain targets (e.g. x86), the logical and actual (or physical) values of the stack pointer +register are the same. However, on other architectures (e.g. SPARCv9), the logical value of the +stack pointer register may differ from the physical value. '``llvm.stackaddress``' handles this +discrepancy and returns the correct boundary address. + +**Note**: This intrinsic is currently only implemented for x86 and x86-64. ---------------- efriedma-quic wrote:
Fix this note? https://github.com/llvm/llvm-project/pull/148281 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
