================
@@ -8287,6 +8289,13 @@ AArch64TargetLowering::LowerCall(CallLoweringInfo &CLI,
SDValue InGlue;
if (RequiresSMChange) {
+
+ if (Subtarget->hasSVE()) {
----------------
efriedma-quic wrote:
There are two different kinds of DWARF "unwind info"; one is the kind that's in
a loadable section, and used for EH. The other is in a debug info section, not
loaded at runtime. If you specify `-fasynchronous-unwind-tables`, you get the
former; if you specify `-g -fno-asynchronous-unwind-tables`, you get the latter.
If you request no debug info and no unwind tables, we shouldn't emit any DWARF
directives.
But like I mentioned, I think we want to unconditionally emit the code to save
the VG, whether or not we emit the corresponding DWARF directives.
https://github.com/llvm/llvm-project/pull/83301
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