================
@@ -1352,8 +1352,44 @@ RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl
&gd, unsigned builtinID,
case Builtin::BI__builtin_eh_return:
case Builtin::BI__builtin_unwind_init:
case Builtin::BI__builtin_extend_pointer:
- case Builtin::BI__builtin_setjmp:
- case Builtin::BI__builtin_longjmp:
+ return errorBuiltinNYI(*this, e, builtinID);
+ case Builtin::BI__builtin_setjmp: {
+ Address buf = emitPointerWithAlignment(e->getArg(0));
+ mlir::Location loc = getLoc(e->getExprLoc());
+
+ cir::PointerType ppTy = builder.getPointerTo(builder.getVoidPtrTy());
+ mlir::Value castBuf = builder.createBitcast(buf.getPointer(), ppTy);
+
+ assert(!cir::MissingFeatures::emitCheckedInBoundsGEP());
+ if (getTarget().getTriple().isSystemZ()) {
+ cgm.errorNYI(e->getExprLoc(), "setjmp on SystemZ");
+ return {};
+ }
+
+ mlir::Value frameAddress =
+ cir::FrameAddrOp::create(builder, loc, builder.getVoidPtrTy(),
+ mlir::ValueRange{builder.getUInt32(0, loc)})
+ .getResult();
+
+ builder.createStore(loc, frameAddress, castBuf);
+
+ mlir::Value stacksave =
+ cir::StackSaveOp::create(builder, loc, builder.getVoidPtrTy())
+ .getResult();
+ cir::PtrStrideOp stackSaveSlot = cir::PtrStrideOp::create(
+ builder, loc, ppTy, castBuf, builder.getSInt32(2, loc));
+ builder.createStore(loc, stacksave, stackSaveSlot);
----------------
andykaylor wrote:
```suggestion
CharUnits slotAlign =
castBuf.getAlignment().alignmentAtOffset(2*cgm.getDataLayout().getTypeAllocSize(voidPtrTy));
Address slotAddr = Address(castBuf.getPointer(), voidPtrTy, slotAlign);
builder.createStore(loc, stacksave, slotAddr);
```
https://github.com/llvm/llvm-project/pull/178989
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