================
@@ -1813,10 +1813,17 @@ void
SystemZInstrInfo::expandStackGuardPseudo(MachineInstr &MI,
// Emit an appropriate pseudo for the guard type, which loads the address of
// said guard into the scratch register AddrReg.
if (GuardType.empty() || (GuardType == "tls")) {
- // Emit a load of the TLS block's address
- BuildMI(MBB, MI, DL, get(SystemZ::LOAD_TLS_BLOCK_ADDR), AddrReg);
- // Record the appropriate stack guard offset (40 in the tls case).
- Offset = 40;
+ if (STI.isTargetzOS()) {
+ enum { OFFSET_CEELAA_STACK_GUARD = 0x98 };
+ BuildMI(MBB, MI, DL, get(SystemZ::LOAD_LIBRARY_ANCHOR_AREA_ADDR),
+ AddrReg);
----------------
uweigand wrote:
Not sure we need the `LOAD_LIBRARY_ANCHOR_AREA_ADDR` extra step here - for the
others, we need it because we need to use the particular sequences are issued
exactly in order, but here we only emit a single instruction anyway ... I
think it would be fine just emit the `LLGT` directly here.
https://github.com/llvm/llvm-project/pull/206045
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