[CIR] removed casting in longjmp codegen

toyoyou11 · toyoyou11 · commit 8405d022007f · 2025-10-01T22:33:06.000+09:00
diff --git a/clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp b/clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp
@@ -1964,12 +1964,10 @@ RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl GD, unsigned BuiltinID,
     return RValue::get(op);
   }
   case Builtin::BI__builtin_longjmp: {
-    Address buf = emitPointerWithAlignment(E->getArg(0));
+    mlir::Value buf = emitScalarExpr(E->getArg(0));
     mlir::Location loc = getLoc(E->getExprLoc());
 
-    cir::PointerType ppTy = builder.getPointerTo(builder.getVoidPtrTy());
-    mlir::Value castBuf = builder.createBitcast(buf.getPointer(), ppTy);
-    cir::EhLongjmpOp::create(builder, loc, castBuf);
+    cir::EhLongjmpOp::create(builder, loc, buf);
     builder.create<cir::UnreachableOp>(loc);
     return RValue::get(nullptr);
   }

Original file line number	Diff line number	Diff line change
`@@ -1964,12 +1964,10 @@ RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl GD, unsigned BuiltinID,`
`1964`	`1964`	`return RValue::get(op);`
`1965`	`1965`	`}`
`1966`	`1966`	`case Builtin::BI__builtin_longjmp: {`
`1967`		`- Address buf = emitPointerWithAlignment(E->getArg(0));`
	`1967`	`+ mlir::Value buf = emitScalarExpr(E->getArg(0));`
`1968`	`1968`	`mlir::Location loc = getLoc(E->getExprLoc());`
`1969`	`1969`
`1970`		`- cir::PointerType ppTy = builder.getPointerTo(builder.getVoidPtrTy());`
`1971`		`- mlir::Value castBuf = builder.createBitcast(buf.getPointer(), ppTy);`
`1972`		`- cir::EhLongjmpOp::create(builder, loc, castBuf);`
	`1970`	`+ cir::EhLongjmpOp::create(builder, loc, buf);`
`1973`	`1971`	`builder.create<cir::UnreachableOp>(loc);`
`1974`	`1972`	`return RValue::get(nullptr);`
`1975`	`1973`	`}`